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MSP 34x1G Multistandard Sound Processor Family with Virtual Dolby Surround

Edition May 27, 2003 6251-511-1DS

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MICRONAS
MSP 34x1G Multistandard Sound Processor Family with Virtual Dolby Surround
Edition May 27, 2003 6251-511-1DS
MICRONAS
MSP 34x1G
Contents Page 6 7 7 8 9 10 10 10 10 11 11 11 11 13 13 13 13 13 14 14 14 15 15 15 15 15 15 15 15 16 16 16 16 16 17 17 17 17 18 18 18 19 19 20 20 Section 1. 1.1. 1.2. 1.3. 2. 2.1. 2.2. 2.2.1. 2.2.2. 2.2.3. 2.2.4. 2.2.5. 2.3. 2.4. 2.5. 2.5.1. 2.5.2. 2.5.3. 2.5.4. 2.5.5. 2.5.6. 2.5.7. 2.5.8. 2.5.8.1. 2.5.8.2. 2.5.8.3. 2.6. 2.6.1. 2.6.2. 2.6.3. 2.6.4. 2.7. 2.7.1. 2.7.2. 2.8. 2.9. 2.10. 2.11. 3. 3.1. 3.1.1. 3.1.2. 3.1.3. 3.1.4. 3.1.4.1. Title Introduction Features of the MSP 34x1G Family MSP 34x1G Version List MSP 34x1G Versions and their Application Fields Functional Description Architecture of the MSP 34x1G Family Sound IF Processing Analog Sound IF Input Demodulator: Standards and Features Preprocessing of Demodulator Signals Automatic Sound Select Manual Mode Preprocessing for SCART and I2S Input Signals Source Selection and Output Channel Matrix Audio Baseband Processing SRS WOW BBE High Definition Sound Micronas VOICE Automatic Volume Correction (AVC) Loudspeaker and Headphone Outputs Subwoofer Output Quasi-Peak Detector Micronas BASS (MB) Dynamic Amplification Adding Harmonics Micronas BASS Parameters Virtual Surround System Application Tips Sweet Spot Clipping Loudspeaker Requirements Cabinet Requirements SCART Signal Routing SCART DSP In and SCART Out Select Stand-by Mode I2S Bus Interface ADR Bus Interface Digital Control I / O Pins and Status Change Indication Clock PLL Oscillator and Crystal Specifications Control Interface I2C Bus Interface Internal Hardware Error Handling Description of CONTROL Register Protocol Description Proposals for General MSP 34x1G I2C Telegrams Symbols
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MSP 34x1G
Contents, continued Page 20 20 20 20 20 20 24 25 25 25 27 29 30 45 46 46 46 46 46 47 47 47 47 47 47 49 49 54 57 60 63 65 65 67 67 68 69 70 71 71 72 73 74 75 77 78 Section 3.1.4.2. 3.1.4.3. 3.1.4.4. 3.2. 3.3. 3.3.1. 3.3.2. 3.3.2.1. 3.3.2.2. 3.3.2.3. 3.3.2.4. 3.3.2.5. 3.3.2.6. 3.3.2.7. 3.4. 3.5. 3.5.1. 3.5.2. 3.5.3. 3.5.4. 3.5.5. 3.5.6. 3.5.7. 3.5.8. 3.5.9. 4. 4.1. 4.2. 4.3. 4.4. 4.5. 4.6. 4.6.1. 4.6.2. 4.6.2.1. 4.6.2.2. 4.6.2.3. 4.6.2.4. 4.6.3. 4.6.3.1. 4.6.3.2. 4.6.3.3. 4.6.3.4. 4.6.3.5. 4.6.3.6. 4.6.3.7. Title Write Telegrams Read Telegrams Examples Start-Up Sequence: Power-Up and I2C-Controlling MSP 34x1G Programming Interface User Registers Overview Description of User Registers STANDARD SELECT Register Refresh of STANDARD SELECT Register STANDARD RESULT Register Write Registers on I2C Subaddress 10hex Read Registers on I2C Subaddress 11hex Write Registers on I2C Subaddress 12hex Read Registers on I2C Subaddress 13hex Programming Tips Examples of Minimum Initialization Codes SCART1 Input to Loudspeaker in Stereo Sound SCART1 Input to Loudspeaker in 3D-PANORAMA Sound Noise Sequencer for 3D-PANORAMA Sound B / G-FM (A2 or NICAM) BTSC-Stereo BTSC-SAP with SAP at Loudspeaker Channel FM-Stereo Radio Automatic Standard Detection Software Flow for Interrupt driven STATUS Check Specifications Outline Dimensions Pin Connections and Short Descriptions Pin Descriptions Pin Configurations Pin Circuits Electrical Characteristics Absolute Maximum Ratings Recommended Operating Conditions General Recommended Operating Conditions Analog Input and Output Recommendations Recommendations for Analog Sound IF Input Signal Crystal Recommendations Characteristics General Characteristics Digital Inputs, Digital Outputs Reset Input and Power-Up I2C-Bus Characteristics I2S-Bus Characteristics Analog Baseband Inputs and Outputs, AGNDC Sound IF Inputs
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MSP 34x1G
Contents, continued Page 104 104 106 106 107 108 108 Section 6.8. 6.9. 7. 7.1. 7.2. 8. 9. Title Exclusions of Audio Baseband Features Compatibility Restrictions to MSP 34xxD Appendix C: Application Information Phase Relationship of Analog Outputs Application Circuit Appendix D: MSP 34x1G Version History Data Sheet History
License Notice:
"Dolby", "Virtual Dolby Surround" and the double-D symbol are trademarks of Dolby Laboratories.
Supply of this implementation of Dolby Technology does not convey a license nor imply a right under any patent, or any other industrial or intellectual property right of Dolby Laboratories, to use this implementation in any finished end-user or ready-to-use final product. Companies planning to use this implementation in products must obtain a license from Dolby Laboratories Licensing Corporation before designing such products.
Micronas
May 27, 2003 6251-511-1DS
MSP 34x1G
Multistandard Sound Processor Family with Virtual Dolby Surround Release Note: Revision bars indicate significant changes to the previous edition.The hardware and software description in this document is valid for the MSP 34x1G version C12 and following versions.
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signal conforming to the standard recommended by the Broadcast Television Systems Committee (BTSC). The DBX noise reduction, or alternatively, Micronas Noise Reduction (MNR) is performed alignment free. Other processed standards are the Japanese FM-FM multiplex standard (EIA-J) and the FM Stereo Radio standard. Current ICs have to perform adjustment procedures in order to achieve good stereo separation for BTSC and EIA-J. The MSP 34x1G has optimum stereo performance without any adjustments. All MSP 34xxG versions are pin compatible to the MSP 34xxD. Only minor modifications are necessary to adapt a MSP 34xxD controlling software to the MSP 34xxG. The MSP 34x1G further simplifies controlling software. Standard selection requires a single I2C transmission only. The MSP 34x1G has built-in automatic functions: The IC is able to detect the actual sound standard automatically (Automatic Standard Detection). Furthermore, pilot levels and identification signals can be evaluated internally with subsequent switching between mono / stereo / bilingual no I2C interaction is necessary (Automatic Sound Selection). The ICs are produced in submicron CMOS technology. The MSP 34x1G is available in the following packages: PSDIP64-1, PSDIP52-1 / -2, PMQFP80-11, and PMQFP64-2.
1. Introduction The MSP 34x1G family of single-chip Multistandard Sound Processors covers the sound processing of all analog TV-Standards worldwide, as well as the NICAM digital sound standards. The full TV sound processing, starting with analog sound IF signal-in, down to processed analog AF-out, is performed on a single chip. Figure 1-1 shows a simplified functional block diagram of the MSP 34x1G. The MSP 34x1G has all functions of the MSP 34x0G with the addition of Virtual Dolby Surround. Surround sound can be reproduced to a certain extent with two loudspeakers. The MSP 34x1G includes the Micronas virtualizer 3D-PANORAMA® which has been approved by the Dolby1) Laboratories for compliance with the "Virtual Dolby Surround" technology. In addition, the MSP 34x1G includes the "PANORAMA" algorithm. These TV sound processing ICs include versions for processing the multichannel television sound (MTS)
Sound IF1 ADC Sound IF2
Demodulator
Preprocessing
Loudspeaker Sound Processing
Loudspeaker Subwoofer
Source Select
I2S1 I2S2 SCART1
Headphone Sound Processing
Headphone
Prescale
I2S DAC
SCART2 SCART3 SCART4 MONO
SCART DSP Input Select
SCART1 ADC Prescale DAC SCART Output Select SCART2
Fig. 1-1: Simplified functional block diagram of the MSP 34x1G
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MSP 34x1G
1.1. Features of the MSP 34x1G Family
Feature Virtual Dolby Surround Processing with 3D-PANORAMA virtualizer PANORAMA virtualizer algorithm Standard Selection with single I2C transmission Automatic Standard Detection of terrestrial TV standards / Automatic Carrier Mute function Automatic Sound Selection (mono / stereo / bilingual), new registers MODUS, STATUS Two selectable sound IF (SIF) inputs Interrupt output programmable (indicating status change) Loudspeaker / Headphone channel with volume, balance, bass, treble, loudness AVC: Automatic Volume Correction Subwoofer output with programmable low-pass and complementary high-pass filter Micronas BASS (MB) and 5-band graphic equalizer for loudspeaker channel Spatial effect for loudspeaker channel processing of all deemphasis filtering Four Stereo SCART (line) inputs, one Mono input two Stereo SCART outputs Complete SCART in / out switching matrix Two I S inputs one I S output All analog Mono sound carriers including AM-SECAM L Korean FM-Stereo A2 standard All analog FM-Stereo A2 and satellite standards Simultaneous demodulation of (very) high-deviation FM-Mono and NICAM Adaptive deemphasis for satellite (Wegener-Panda, acc. to ASTRA specification) ASTRA Digital Radio (ADR) together with DRP 3510A All NICAM standards Demodulation of the BTSC multiplex signal and the SAP channel Alignment free digital DBX noise reduction for BTSC Stereo and SAP Alignment free digital Micronas Noise Reduction (MNR) for BTSC Stereo and SAP BTSC stereo separation (MSP 3421 / 41G also EIA-J) significantly better than spec. SAP and stereo detection for BTSC system Alignment-free Japanese standard EIA-J Demodulation of the FM-Radio multiplex signal X X X X X X X X X X X X X X X
1.2. MSP 34x1G Version List
Version MSP 3401G MSP 3411G MSP 3421G MSP 3441G MSP 3451G MSP 3461G Status available available available available available available Description FM Stereo (A2) Version NICAM and FM Stereo (A2) Version NTSC Version (A2 Korea, BTSC with Micronas Noise Reduction (MNR), Japanese EIA-J system) NTSC Version (A2 Korea, BTSC with DBX noise reduction, Japanese EIA-J system) Global Version (all sound standards) Global Mono Version (all sound Standards)
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MSP 34x1G
1.3. MSP 34x1G Versions and their Application Fields Table 1-1 provides an overview of TV sound standards that can be processed by the MSP 34x1G family. In addition, the MSP 34x1G is able to handle the FM-Radio standard. With the MSP 34x1G, a complete
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multimedia receiver covering all TV sound standards together with terrestrial / cable and satellite radio sound can be built even ASTRA Digital Radio can be processed (with a DRP 3510A coprocessor).
Table 1-1: TV Stereo Sound Standards covered by the MSP 34x1G IC Family (details see Appendix A)
MSP Version 3401 TVSystem B / G 5.5 / 5.85 L I 6.5 / 5.85 6.0 / 6.552 6.5 / 6.2578125 3401 3411 6.5 / 6.7421875 D / K 6.5 / 5.7421875 3451 6.5 / 5.85 6.5 7.02 / 7.2 7.38 / 7.56 etc. 4.5 / 4.724212 3421, 3441 M / N 4.5 4.5 FM-Radio 3461 10.7 FM-Stereo (A2, D / K3) FM-Mono / NICAM (D / K, NICAM) FM-Mono FM-Stereo ASTRA Digital Radio (ADR) with DRP 3510A FM-Stereo (A2) FM-FM (EIA-J) BTSC-Stereo + SAP FM-Stereo Radio SECAM-East PAL Poland China, Hungary FM-Mono / NICAM AM-Mono / NICAM FM-Mono / NICAM FM-Stereo (A2, D / K1) FM-Stereo (A2, D / K2) PAL SECAM-L PAL SECAM-East PAL Scandinavia, Spain France UK, Hong Kong Slovak. Rep. currently no broadcast Position of Sound Carrier / MHz 5.5 / 5.7421875 Sound Modulation FM-Stereo (A2) Color System PAL Broadcast e.g. in: Germany
Satellite
Europe Sat. ASTRA
NTSC NTSC NTSC, PAL
Korea Japan USA, Argentina USA, Europe
all Standards, but Mono demodulation only
33 34 39 MHz 4.5 9 MHz
SAW Filter Tuner Sound IF Mixer
Loudspeaker
Mono Vision Demodulator SCART1
Subwoofer
MSP 34x1G
Headphone
SCART Inputs Composite Video
SCART2 SCART3 SCART4
SCART1 SCART2
SCART Outputs
Dolby Pro Logic Processor DPL 351xA
ADR Decoder DRP 3510A
Fig. 1-2: Typical MSP 34x1G application
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2. Functional Description
Prescale
(16hex)
Source Select
SCART DSP Input Select
(13hex)
(41hex)
(40hex)
SCART Output Select
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Prescale
(0Ehex)
Stereo or A / B
Loud speaker Channel Matrix
(08hex)
Virtualizer
(29hex)
Bass / Treble or Equalize
(02hex) (03hex)
Loudness
(04hex)
Comple mentary Spatial Balance Highpass Effects
0.5 (2Dhex) (05hex) (01hex)
D Volume
(00hex)
ADR-Bus Interface
Decoded Standards: - NICAM - A2 - AM - BTSC - EIA-J - SAT - FM-Radio
NICAM Deemphasis J17 Prescale
(10hex)
Stereo or A
Stereo or B
Noise Generator
Lowpass Beeper
(14hex) (2Dhex)
Level Adjust
(2C hex)
Standard and Sound Detection
I2C Read Register
Headphone Channel Matrix
(09hex)
Volume Bass / Treble
(31 / 32hex)
Loudness
Balance
(33hex)
(30hex)
(06hex)
(12hex)
I2S Channel Matrix
(0Bhex)
I2S Interface
Quasi-Peak Channel Matrix
(0Chex)
Quasi-Peak Detector
I2C Read Register
(19hex) (1Ahex)
SCART 2 Prescale
(0Dhex)
SCART1 Channel Matrix
(0Ahex)
Volume
(07hex)
SCART2 Channel Matrix
Volume
MSP 34x1G
(13hex)
Fig. 2-1: Signal flow block diagram of the MSP 34x1G (input and output names correspond to pin names)
MSP 34x1G
2.1. Architecture of the MSP 34x1G Family Fig. 2-1 on page 9 shows a simplified block diagram of the IC. The block diagram contains all features of the MSP 3451G. Other members of the MSP 34x1G family do not have the complete set of features: The demodulator handles only a subset of the standards presented in the demodulator block NICAM processing is only possible in the MSP 3411G and MSP 3451G.
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BTSC-Mono + SAP: Detection and FM demodulation of the aural carrier resulting in the MTS / MPX signal. Detection and evaluation of the pilot carrier, detection and FM demodulation of the SAP subcarrier. Processing of DBX noise reduction or Micronas Noise Reduction (MNR). Japan Stereo: Detection and FM demodulation of the aural carrier resulting in the MPX signal. Demodulation and evaluation of the identification signal and FM demodulation of the (L-R)-carrier. FM-Satellite Sound: Demodulation of one or two FM carriers. Processing of high-deviation mono or narrow bandwidth mono, stereo, or bilingual satellite sound according to the ASTRA specification. FM-Stereo-Radio: Detection and FM demodulation of the aural carrier resulting in the MPX signal. Detection and evaluation of the pilot carrier and AM demodulation of the (L-R)-carrier. The demodulator blocks of all MSP 34x1G versions have identical user interfaces. Even completely different systems like the BTSC and NICAM systems are controlled the same way. Standards are selected by means of MSP Standard Codes. Automatic processes handle standard detection and identification without controller interaction. The key features of the MSP 34x1G demodulator blocks are Standard Selection: The controlling of the demodulator is minimized: All parameters, such as tuning frequencies or filter bandwidth, are adjusted automatically by transmitting one single value to the STANDARD SELECT register. For all standards, specific MSP standard codes are defined. Automatic Standard Detection: If the TV sound standard is unknown, the MSP 34x1G can automatically detect the actual standard, switch to that standard, and respond the actual MSP standard code. Automatic Carrier Mute: To prevent noise effects or FM identification problems in the absence of an FM carrier, the MSP 34x1G offers a configurable carrier mute feature, which is activated automatically if the TV sound standard is selected by means of the STANDARD SELECT register. If no FM carrier is detected at one of the two MSP demodulator channels, the corresponding demodulator output is muted. This is indicated in the STATUS register.
2.2.2. Demodulator: Standards and Features The MSP 34x1G is able to demodulate all TV-sound standards worldwide including the digital NICAM system. Depending on the MSP 34x1G version, the following demodulation modes can be performed: A2 Systems: Detection and demodulation of two separate FM carriers (FM1 and FM2), demodulation and evaluation of the identification signal of carrier FM2. NICAM Systems: Demodulation and decoding of the NICAM carrier, detection and demodulation of the analog (FM or AM) carrier. For D / K-NICAM, the FM carrier may have a maximum deviation of 384 kHz. Very high deviation FM-Mono: Detection and robust demodulation of one FM carrier with a maximum deviation of 540 kHz. BTSC-Stereo: Detection and FM demodulation of the aural carrier resulting in the MTS / MPX signal. Detection and evaluation of the pilot carrier, AM demodulation of the (L-R)-carrier and detection of the SAP subcarrier. Processing of DBX noise reduction or Micronas Noise Reduction (MNR).
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MSP 34x1G
- "Stereo or A" channel: Analog or digital mono sound, stereo if available. In case of bilingual broadcast, it contains language A (on left and right). - "Stereo or B" channel: Analog or digital mono sound, stereo if available. In case of bilingual broadcast, it contains language B (on left and right). Fig. 2-2 and Table 2-2 show the source channel assignment of the demodulated signals in case of Automatic Sound Select mode for all sound standards. Note: The analog primary input channel contains the signal of the mono FM / AM carrier or the L+R signal of the MPX carrier. The secondary input channel contains the signal of the 2nd FM carrier, the L-R signal of the MPX carrier, or the SAP signal.
2.2.3. Preprocessing of Demodulator Signals The NICAM signals must be processed by a deemphasis filter and adjusted in level. The analog demodulated signals must be processed by a deemphasis filter, adjusted in level, and dematrixed. The correct deemphasis filters are already selected by setting the standard in the STANDARD SELECT register. The level adjustment has to be done by means of the FM / AM and NICAM prescale registers. The necessary dematrix function depends on the selected sound standard and the actual broadcasted sound mode (mono, stereo, or bilingual). It can be manually set by the FM Matrix Mode register or automatically by the Automatic Sound Selection.
2.2.4. Automatic Sound Select In the Automatic Sound Select mode, the dematrix function is automatically selected based on the identification information in the STATUS register. No I2C interaction is necessary when the broadcasted sound mode changes (e.g. from mono to stereo). The demodulator supports the identification check by switching between mono-compatible standards (standards that have the same FM-Mono carrier) automatically and non-audible. If B / G-FM or B / G-NICAM is selected, the MSP will switch between these standards. The same action is performed for the standards: D / K1-FM, D / K2-FM, D / K3-FM and D / K-NICAM. Switching is only done in the absence of any stereo or bilingual identification. If identification is found, the MSP keeps the detected standard. In case of high bit-error rates, the MSP 34x1G automatically falls back from digital NICAM sound to analog FM or AM mono. Table 2-1 summarizes all actions that take place when Automatic Sound Select is switched on.
primary channel primary channel secondary channel
FM / AM Prescale
LS Ch. Matrix Source Select
NICAM A
NICAM
Automatic Sound Select
Stereo or A / B
Stereo or A
Output-Ch. matrices must be set once to stereo.
NICAM B
Prescale
Stereo or B
Fig. 2-2: Source channel assignment of demodulated signals in Automatic Sound Select Mode
2.2.5. Manual Mode Fig. 2-3 shows the source channel assignment of demodulated signals in case of manual mode. If manual mode is required, more information can be found in Section 6.7. "Demodulator Source Channels in Manual Mode" on page 104.
FM / AM FM-Matrix
LS Ch. Matrix Source Select
To provide more flexibility, the Automatic Sound Select block prepares four different source channels of demodulated sound (Fig. 2-2). By choosing one of the four demodulator channels, the preferred sound mode can be selected for each of the output channels (loudspeaker, headphone, etc.). This is done by means of the Source Select registers. The following source channels of demodulated sound are defined: - "FM / AM" channel: Analog mono sound, stereo if available. In case of NICAM, analog mono only (FM or AM mono). - "Stereo or A / B" channel: Analog or digital mono sound, stereo if available. In case of bilingual broadcast, it contains both languages A (left) and B (right).
secondary channel
Prescale
NICAM A
NICAM
NICAM (Stereo or A / B) 1
Output-Ch. matrices must be set according to the standard.
NICAM B
Prescale
Fig. 2-3: Source channel assignment of demodulated signals in Manual Mode
2.3. Preprocessing for SCART and I2S Input Signals The SCART and I2S inputs need only be adjusted in level by means of the SCART and I2S prescale registers.
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Table 2-1: Performed actions of the Automatic Sound Selection
Selected TV Sound Standard B / G-FM, D / K-FM, M-Korea, and M-Japan B / G-NICAM, L-NICAM, I-NICAM, and D / K-NICAM Performed Actions
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Evaluation of the identification signal and automatic switching to mono, stereo, or bilingual. Preparing four demodulator source channels according to Table 2-2. Evaluation of NICAM-C-bits and automatic switching to mono, stereo, or bilingual. Preparing four demodulator source channels according to Table 2-2. In case of bad or no NICAM reception, the MSP switches automatically to FM / AM mono and switches back to NICAM if possible. A hysteresis prevents periodical switching.
B / G-FM, B / G-NICAM or D / K1-FM, D / K2-FM, D / K3-FM, and D / K-NICAM
Automatic searching for stereo / bilingual-identification in case of mono transmission. Automatic and nonaudible changes between Dual-FM and FM-NICAM standards while listening to the basic FM-Mono sound carrier. Example: If starting with B / G-FM-Stereo, there will be a periodical alternation to B / G-NICAM in the absence of FM-Stereo / Bilingual or NICAM-identification. Once an identification is detected, the MSP keeps the corresponding standard. Evaluation of the pilot signal and automatic switching to mono or stereo. Preparing four demodulator source channels according to Table 2-2. Detection of the SAP carrier. In the absence of SAP, the MSP switches to BTSC-Stereo if available. If SAP is detected, the MSP switches automatically to SAP (see Table 2-2).
BTSC-STEREO, FM Radio BTSC-SAP
Table 2-2: Sound modes for the demodulator source channels with Automatic Sound Select
Source Channels in Automatic Sound Select Mode Broadcasted Sound Standard M-Korea B / G-FM D / K-FM M-Japan Selected MSP Standard Code3) 02 03, 081) 04, 05, 07, 0B1) 30 Broadcasted Sound Mode FM / AM
(source select: 0)
Stereo or A / B
(source select: 1)
Stereo or A
(source select: 3)
Stereo or B
(source select: 4)
MONO STEREO BILINGUAL: Languages A and B
Mono Stereo A analog Mono NICAM Mono NICAM Stereo NICAM A Mono Stereo Mono Stereo Mono Mono Mono Stereo
Mono Stereo B analog Mono NICAM Mono NICAM Stereo NICAM B Mono Stereo Mono Stereo SAP SAP Mono Stereo
B / G-NICAM L-NICAM I-NICAM D / K-NICAM D / K-NICAM
(with high deviation FM)
08, 032) 09 0A 0B, 042), 052) 0C, 0D
NICAM not available or error rate too high MONO STEREO BILINGUAL: Languages A and B
MONO STEREO
20 BTSC 21
MONO+SAP STEREO+SAP MONO+SAP STEREO+SAP
FM Radio
MONO STEREO
The Automatic Sound Select process will automatically switch to the mono compatible analog standard. The Automatic Sound Select process will automatically switch to the mono compatible digital standard. The MSP Standard Codes are defined in Table 3-7 on page 24.
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MSP 34x1G
2.5.2. BBE High Definition Sound License Notice: BBE is a registered trademark of BBE Sound Inc., the BBE Logo is a trademark of BBE Sound Inc. A license from BBE Sound Inc. is required before a BBE-version of the MSP 34x1G can be purchased. BBE High Definition Sound or, also called, Sonic Maximizer technology improves the clarity of music when played back via loudspeakers. A more "life like" feeling is created by BBE. The BBE-approved Micronas implementation works in the digital domain and thus needs no external components and does not suffer from tolerances and aging effects. All MSP 34x1G are shipped without BBE except otherwise ordered. When a BBE-version of the MSP 34x1G is ordered, it carries a special marking on the chip for identification. The BBE Sonic Maximizer functionality must be enabled by writing a "license key" into the MSP 34x1G. For information on how to obtain this license key from Micronas, please contact your Micronas sales representative.
2.4. Source Selection and Output Channel Matrix The Source Selector makes it possible to distribute all source signals (one of the demodulator source channels, SCART, or I2S input) to the desired output channels (loudspeaker, headphone, etc.). All input and output signals can be processed simultaneously. Each source channel is identified by a unique source address. For each output channel, the sound mode can be set to sound A, sound B, stereo, or mono by means of the output channel matrix. If Automatic Sound Select is on, the output channel matrix can stay fixed to stereo (transparent) for demodulated signals.
2.5.3. Micronas VOICE Micronas VOICE was developed to add the following improvements to speech signals: - Increase speech signal over background noise to increase intelligibility in noisy environments - Move voice to the foreground, closer to the listener, while other sounds are moved to the back - Improve voices that are hard to understand, leave clear voices largely undisturbed Micronas VOICE dynamically enhances those portions of speech that are important for intelligibility while at the same time decreasing portions of the signal that disturb intelligibility. The average amplitude of the signal is not changed. According to speech theory, there are two main effects that affect the intelligibility of speech. Micronas VOICE combines both effects to achieve a maximum enhancement of intelligibility. - Forward and backward masking: For intelligibility, consonants are more important than vowels, but the amplitude of consonants is much lower than that of vowels. The consonants are masked by the vowels. Therefore, the amplitude of consonants is increased and the amplitude of vowels decreased. - Phonemes and formants: Most important for intelligibility are the second to fourth formants of speech. These formants are detected and increased, while other parts of the signal are decreased.
Key features of WOW include: - Wider and taller sound image field - Larger sweet spot - Deep, rich bass tones - Quality improvements to audio listening experience - Improved clarity of speech All MSP 34x1G are shipped without SRS except otherwise ordered. When an SRS-version of MSP 34x1G is ordered, it carries a special marking on the chip for identification. The SRS WOW functionality must be enabled by writing a "license key" into the MSP 34x1G. For information on how to obtain this license key from Micronas, please contact your Micronas sales representative.
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MSP 34x1G
All MSP 34x1G are shipped without Micronas VOICE except otherwise ordered. When a Micronas VOICE version of the MSP 34x1G is ordered, it carries a special marking on the chip for identification. The Micronas VOICE functionality must be enabled by writing a "license key" into the MSP 34x1G. For information on how to obtain this license key from Micronas, please contact your Micronas sales representative.
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2.5.5. Loudspeaker and Headphone Outputs The following baseband features are implemented in the loudspeaker and headphone output channels: bass / treble, loudness, balance, and volume. A square wave beeper can be added to the loudspeaker and headphone channel. The loudspeaker channel additionally performs: equalizer (not simultaneously with bass / treble), spatial effects, and a subwoofer crossover filter.
2.5.6. Subwoofer Output The subwoofer signal is created by combining the left and right channels directly behind the loudness block using the formula (L+R) / 2. Due to the division by 2, the D / A converter will not be overloaded, even with full scale input signals. The subwoofer signal is filtered by a third-order low-pass with programmable corner frequency followed by a level adjustment. At the loudspeaker channels, a complementary high-pass filter can be switched on. Subwoofer and loudspeaker output use the same volume (Loudspeaker Volume Register).
dB 5 1 0 -5 -10 -15 -20 -25
Amplitude @dBD 0
input level dBr
2000 Hz
Fig. 2-4: Simplified AVC characteristics
Fig. 2-5: Frequency response of subwoofer filter 0: sharp edge 1: medium edge 2: soft edge 3: very soft edge
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MSP 34x1G
Amplitude (db)
2.5.7. Quasi-Peak Detector The quasi-peak readout register can be used to read out the quasi-peak level of any input source. The feature is based on following filter time constants: attack time: 1.3 ms decay time: 37 ms
2.5.8. Micronas BASS (MB) The Micronas BASS system extends the frequency range of loudspeakers or headphones. After the adaption of Micronas Bass to the loudspeakers and the cabinet, further customizing of MB allows individual fine tuning of the sound. Micronas BASS is placed in the subwoofer path. For applications without a subwoofer, the enhanced bass signal can be added back onto the Left / Right channels (see Fig. 2-1 on page 9). MB combines two effects: dynamic amplification and adding harmonics.
Fig. 2-7: Adding harmonics
2.5.8.1. Dynamic Amplification Low frequency signals can be boosted while the output signal amplitude is measured. If the amplitude comes close to a definable limit, the gain is reduced automatically in dynamic Volume mode. Therefore, the system adapts to the signal amplitude which is really present at the output of the MSP device. Clipping effects are avoided.
Amplitude (db)
2.5.8.3. Micronas BASS Parameters Several parameters allow tuning the characteristics of Micronas BASS according to the TV loudspeaker, the cabinet, and personal preferences (see Table 3-11). For more detailed information on how to set up Micronas Bass, please refer to the corresponding application note.
2.6. Virtual Surround System Application Tips 2.6.1. Sweet Spot Good results are only obtained in a rather close area along the middle axis between the two loudspeakers: the sweet spot. Moving away from this position degrades the effect.
2.6.2. Clipping For the test at Dolby Labs, it is very important to have no clipping effects even with worst case signals. That is, 2 Vrms input signal may not clip. The SCART Input Prescale register has to be set to values of 19hex (25dec) or lower (see SCART Input Prescale on page 31). Test signals: sine sweep with 2 VRMS L only, R only, L&R equal phase, L&R anti phase. Listening tests: Dolby Trailers (train trailer, city trailer, canyon trailer..)
Fig. 2-6: Dynamic amplification
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DATA SHEET
2.7.1. SCART DSP In and SCART Out Select The SCART DSP Input Select and SCART Output Select blocks include full matrix switching facilities. To design a TV set with four pairs of SCART-inputs and two pairs of SCART-outputs, no external switching hardware is required. The switches are controlled by the ACB user register (see page 42).
2.6.4. Cabinet Requirements During listening tests at Dolby Laboratories, no resonances in the cabinet should occur. Good material to check for resonances are the Dolby Trailers or other dynamic sound tracks.
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DATA SHEET
MSP 34x1G
2.11. Clock PLL Oscillator and Crystal Specifications The MSP 34x1G derives all internal system clocks from the 18.432-MHz oscillator. In NICAM or in I2SSlave mode, the clock is phase-locked to the corresponding source. Therefore, it is not possible to use NICAM and I2S-Slave mode at the same time. For proper performance, the MSP clock oscillator requires a 18.432-MHz crystal. Note that for the phase-locked modes (NICAM, I2S-Slave), crystals with tighter tolerance are required.
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DATA SHEET
Indication and solving the error status: To indicate the error status, the remaining acknowledge bits of the actual I2C-protocol will be left high. Additionally, bit14 of CONTROL is set to one. The MSP can then be reset via the I2C bus by transmitting the RESET condition to CONTROL.
Indication of reset: Any reset, even caused by an unstable reset line etc., is indicated in bit15 of CONTROL. A general timing diagram of the I2C bus is shown in Fig. 4-26 on page 74.
Left Open Read 89hex
Table 3-2: I2C Bus Subaddresses
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DATA SHEET
MSP 34x1G
3.1.2. Description of CONTROL Register
Table 3-3: CONTROL as a Write Register
Name CONTROL Subaddress 00hex Bit15 (MSB) 1 : RESET 0 : normal Bits14:0 0
Table 3-4: CONTROL as a Read Register
Reading of CONTROL will reset the bits15, 14 of CONTROL. After Power-on, bit15 of CONTROL will be set it must be read once to be reset.
3.1.3. Protocol Description Write to DSP or Demodulator
S Wait write device address ACK sub-addr ACK addr-byte ACK addr-byte ACK data-byte ACK data-byte ACK P high low high low
Read from DSP or Demodulator
S Wait write device address ACK sub-addr ACK addr-byte ACK addr-byte ACK S high low read device address Wait ACK data-byte- ACK data-byte NAK P high low
Write to Control Register
S Wait write device address ACK sub-addr ACK data-byte ACK data-byte ACK P high low
Read from Control Register
S Wait write device address ACK 00hex ACK S read device address Wait ACK data-byte- ACK data-byte NAK P high low
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DATA SHEET
Fig. 3-1: I2C bus protocol (MSB first data must be stable while clock is high)
3.2. Start-Up Sequence: Power-Up and I2C-Controlling After POWER-ON or RESET (see Fig. 4-25), the IC is in an inactive state. All registers are in the Reset position (see Table 3-5 and Table 3-6), the analog outputs are muted. The controller has to initialize all registers for which a non-default setting is necessary.
3.3. MSP 34x1G Programming Interface 3.3.1. User Registers Overview
3.1.4.2. Write Telegrams
write to CONTROL register write data into demodulator write data into DSP
3.1.4.3. Read Telegrams
The MSP 34x1G is controlled by means of user registers. The complete list of all user registers is given in Table 3-5 and Table 3-6. The registers are partitioned into the Demodulator section (subaddress 10hex for writing, 11hex for reading) and the Baseband Processing sections (subaddress 12hex for writing, 13hex for reading). Write and read registers are 16 bit wide, whereby the MSB is denoted bit15. Transmissions via I2C bus have to take place in 16-bit words (two byte transfers, with the most significant byte transferred first). All write registers, except the demodulator write registers are readable. Unused parts of the 16-bit write registers must be zero. Addresses not given in this table must not be accessed. For reasons of software compatibility to the MSP 34xxD, a Manual / Compatibility Mode is available. More read and write registers together with a detailed description can be found in "Appendix B: Manual / Compatibility Mode" on page 90.
3.1.4.4. Examples
source to Stereo or A / B and Matrix to Stereo (transparent mode)
More examples of typical application protocols are listed in Section 3.4. "Programming Tips" on page 46.
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DATA SHEET
MSP 34x1G
Table 3-5: List of MSP 34x1G Write Registers
Write Register Address (hex) Bits Description and Adjustable Range Reset See Page
MUTE 00hex
Balance loudspeaker channel L / R Balance mode loudspeaker Bass loudspeaker channel Treble loudspeaker channel Loudness loudspeaker channel Loudness filter characteristic Spatial effect strength loudspeaker ch. Spatial effect mode / customize Volume headphone channel Volume / Mode headphone channel
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Table 3-5: List of MSP 34x1G Write Registers, continued
DATA SHEET
See Page 31 35 36 36 36 36 36 34
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DATA SHEET
MSP 34x1G
Table 3-6: List of MSP 34x1G Read Registers
Read Register Address (hex) Bits Description and Adjustable Range See Page
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3.3.2. Description of User Registers Table 3-7: Standard Codes for STANDARD SELECT register
MSP Standard Code (Data in hex) TV Sound Standard Automatic Standard Detection 00 01 Starts Automatic Standard Detection and sets detected standard Standard Selection 00 02 00 03 00 04 00 05 00 06 M-Dual FM-Stereo B / G -Dual FM-Stereo1) D / K1-Dual FM-Stereo2) 4.5 / 4.724212 5.5 / 5.7421875 6.5 / 6.2578125 6.5 / 6.7421875 6.5 all Sound Carrier Frequencies in MHz
DATA SHEET
MSP 34x1G Version
D / K2-Dual FM-Stereo2) D / K -FM-Mono with HDEV33), not detectable by Automatic Standard Detection, HDEV33) SAT-Mono (i.e. Eutelsat, s. Table 6-18) D / K3-Dual FM-Stereo B / G -NICAM-FM L -NICAM-AM I -NICAM-FM D / K -NICAM-FM
D / K -NICAM-FM with HDEV24), not detectable by Automatic Standard Detection, for China D / K -NICAM-FM with HDEV33), not detectable by Automatic Standard Detection, for China BTSC-Stereo BTSC-Mono + SAP M-EIA-J Japan Stereo FM-Stereo Radio with 75 µs Deemphasis SAT-Mono (s. Table 6-18) SAT-Stereo (s. Table 6-18) SAT ADR (Astra Digital Radio)
In case of Automatic Sound Select, the B / G-codes 3hex and 8hex are equivalent. In case of Automatic Sound Select, the D / K-codes 4hex, 5hex, 7hexand Bhex are equivalent. HDEV3: Max. FM deviation must not exceed 540 kHz HDEV2: Max. FM deviation must not exceed 360 kHz
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MSP 34x1G
3.3.2.2. Refresh of STANDARD SELECT Register A general refresh of the STANDARD SELECT register is not allowed. However, the following method enables watching the MSP 34x1G "alive" status and detection of accidental resets (only versions B6 and later): - After Power-on, bit15 of CONTROL will be set it must be read once to enable the reset-detection feature. - Reading of the CONTROL register and checking the reset indicator bit15 . - If bit15 is "0", any refresh of the STANDARD SELECT register is not allowed. - If bit15 is "1", indicating a reset, a refresh of the STANDARD SELECT register and all other MSPG registers is required.
3.3.2.1. STANDARD SELECT Register The TV sound standard of the MSP 34x1G demodulator is determined by the STANDARD SELECT register. There are two ways to use the STANDARD SELECT register: - Setting up the demodulator for a TV sound standard by sending the corresponding standard code with a single I2C bus transmission. - Starting the Automatic Standard Detection for terrestrial TV standards. This is the most comfortable way to set up the demodulator. Within 0.5 s, the detection and setup of the actual TV sound standard is performed. The detected standard can be read out of the STANDARD RESULT register by the control processor. This feature is recommended for the primary setup of a TV set. Outputs should be muted during Automatic Standard Detection. The Standard Codes are listed in Table 3-7.
3.3.2.3. STANDARD RESULT Register Selecting a TV sound standard via the STANDARD SELECT register initializes the demodulator. This includes: AGC-settings and carrier mute, tuning frequencies, FIR-filter settings, demodulation mode (FM, AM, NICAM), deemphasis and identification mode. TV stereo sound standards that are unavailable for a specific MSP version are processed in analog mono sound of the standard. In that case, stereo or bilingual processing will not be possible. For a complete setup of the TV sound processing from analog IF input to the source selection, the transmissions as shown in Section 3.5. are necessary. For reasons of software compatibility to the MSP 34xxD, a Manual / Compatibility mode is available. A detailed description of this mode can be found on page 90. If Automatic Standard Detection is selected in the STANDARD SELECT register, status and result of the Automatic Standard Detection process can be read out of the STANDARD RESULT register. The possible results are based on the mentioned Standard Code and are listed in Table 3-8. In cases where no sound standard has been detected (no standard present, too much noise, strong interferers, etc.) the STANDARD RESULT register contains 00 00hex. In that case, the controller has to start further actions (for example set the standard according to a preference list or by manual input). As long as the STANDARD RESULT register contains a value greater than 07 FFhex, the Automatic Standard Detection is still active. During this period, the MODUS and STANDARD SELECT register must not be written. The STATUS register will be updated when the Automatic Standard Detection has finished. If a present sound standard is unavailable for a specific MSP-version, it detects and switches to the analog mono sound of this standard. Example: The MSPs 3421G and 3441G will detect a B / G-NICAM signal as standard 3 and will switch to the analog FMMono sound.
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Table 3-8: Results of the Automatic Standard Detection
Broadcasted Sound Standard Automatic Standard Detection could not find a sound standard B / G-FM B / G-NICAM I FM-Radio M-Korea M-Japan M-BTSC STANDARD RESULT Register Read 007Ehex 0000hex
DATA SHEET
L-AM D / K1 D / K2 D / K3 L-NICAM D / K-NICAM Automatic Standard Detection still active
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DATA SHEET
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00 30hex
MODUS Register Preference in Automatic Standard Detection: bit15 bit14:13 0 1 2 3 bit12 0 1 0 undefined, must be 0 detected 4.5 MHz carrier is interpreted as:1) standard M (Korea) standard M (BTSC) standard M (Japan) chroma carrier (M / N standards are ignored) detected 6.5 MHz carrier is interpreted as:1) standard L (SECAM) standard D / K1, D / K2, D / K3, or D / K NICAM
MODUS
Valid at the next start of Automatic Standard Detection.
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MSP 34x1G
STATUS
bit7 bit6
bit5, 9
bit4 bit3 bit2 bit1 bit0
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3.3.2.6. Write Registers on I2C Subaddress 12hex Table 3-11: Write Registers on I2C Subaddress 12hex Register Address Function
DATA SHEET
For all FM modes except satellite FM and AM-mode, the combinations of prescale value and FM deviation listed below lead to internal full scale with 1 kHz test signal and 50 µs emphasis. FM mode bit15:8 7Fhex 48hex 30hex 24hex 18hex 13hex 28 kHz FM deviation 50 kHz FM deviation 75 kHz FM deviation 100 kHz FM deviation 150 kHz FM deviation 180 kHz FM deviation (limit)
Satellite FM with adaptive deemphasis bit15:8 10hex recommendation
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Table 3-11: Write Registers on I2C Subaddress 12hex, continued Register Address
(continued)
Function FM Matrix Modes Defines the dematrix function for the demodulated FM signal bit7:0 00hex 01hex 02hex 03hex 04hex no matrix (used for bilingual and unmatrixed stereo sound) German stereo (Standard B / G) Korean stereo (also used for BTSC, EIA-J and FM Radio) sound A mono (left and right channel contain the mono sound of the FM / AM mono carrier) sound B mono
00 0Ehex
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Table 3-11: Write Registers on I2C Subaddress 12hex, continued Register Address Function
DATA SHEET
03hex 04hex 02hex 05hex 06hex
In Automatic Sound Select mode, the demodulator source channels are set according to Table 2-2. Therefore, the matrix modes of the corresponding output channels should be set to "Stereo" (transparent).
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Table 3-11: Write Registers on I2C Subaddress 12hex, continued Register Address Function Name
bit7:5
bit4 bit3:0
clipping mode 0 reduce volume 1 reduce tone control 2 compromise 3 dynamic
With large scale input signals, positive volume settings may lead to signal clipping. The MSP 34x1G loudspeaker and headphone volume function is divided into a digital and an analog section. With Fast Mute, volume is reduced to mute position by digital volume only. Analog volume is not changed. This reduces any audible DC plops. To turn volume on again, the volume step that has been used before Fast Mute was activated must be transmitted. If the clipping mode is set to "reduce volume", the following rule is used: To prevent severe clipping effects with bass, treble, or equalizer boosts, the internal volume is automatically limited to a level where, in combination with either bass, treble, or equalizer setting, the amplification does not exceed 12 dB. If the clipping mode is "reduce tone control", the bass or treble value is reduced if amplification exceeds 12 dB. If the equalizer is switched on, the gain of those bands is reduced, where amplification together with volume exceeds 12 dB. If the clipping mode is "compromise", the bass or treble value and volume are reduced half and half if amplification exceeds 12 dB. If the equalizer is switched on, the gain of those bands is reduced half and half, where amplification together with volume exceeds 12 dB. If the clipping mode is "dynamic", volume is reduced automatically if the signal amplitudes would exceed -2 dBFS within the IC. For operation of Micronas BASS, dynamic mode must be switched on.
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Table 3-11: Write Registers on I2C Subaddress 12hex, continued Register Address 00 29hex Function Automatic Volume Correction (AVC) Loudspeaker Channel bit15:12 00hex 08hex bit11:8 08hex 04hex 02hex 01hex AVC off (and reset internal variables) AVC on 8 sec decay time 4 sec decay time 2 sec decay time 20 ms decay time (should be used for approx. 100 ms after channel change)
DATA SHEET
Name AVC
00 01hex 00 30hex
bit15:8
bit7:0
Positive balance settings reduce the left channel without affecting the right channel negative settings reduce the right channel leaving the left channel unaffected.
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Table 3-11: Write Registers on I2C Subaddress 12hex, continued Register Address 00 03hex 00 32hex Function Treble Loudspeaker Channel Treble Headphone Channel bit15:8 78hex 70hex .. 08hex 00hex F8hex .. A8hex A0hex +15 dB +14 dB +1 dB 0 dB -1 dB -11 dB -12 dB
DATA SHEET
Higher resolution is possible: an LSB step results in a gain step of about 1 / 8 dB. With positive equalizer settings, internal clipping may occur even with overall volume less than 0 dB. This will lead to a clipped output signal. Therefore, it is not recommended to set equalizer bands to a value that, in conjunction with volume, would result in an overall positive gain.
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MSP 34x1G
bit7:0
Higher resolution of Loudness Gain is possible: An LSB step results in a gain step of about 1 / 4 dB. Loudness increases the volume of low- and high-frequency signals, while keeping the amplitude of the reference frequency constant. The intended loudness has to be set according to the actual volume setting. Because loudness introduces gain, it is not recommended to set loudness to a value that, in conjunction with volume, would result in an overall positive gain. The corner frequency for bass amplification can be set to two different values. In Super Bass mode, the corner frequency is shifted up. The point of constant volume is shifted from 1 kHz to 2 kHz.
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DATA SHEET
bit7:4
bit3:0
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Table 3-11: Write Registers on I2C Subaddress 12hex, continued Register Address Function Name
bit7:0
The Micronas BASS effect strength can be adjusted in 1 dB steps. A value of 44hex will yield a medium Micronas BASS effect.
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Table 3-11: Write Registers on I2C Subaddress 12hex, continued Register Address 00 69hex Function Micronas BASS Amplitude Limit bit15:8 00hex FFhex .. E0hex 00hex 0 dBFS (default limitation) -1 dBFS -32 dBFS must be zero
DATA SHEET
bit7:0
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Table 3-11: Write Registers on I2C Subaddress 12hex, continued Register Address Function Name
bit7:5
bit4:0
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Table 3-11: Write Registers on I2C Subaddress 12hex, continued Register Address Function
DATA SHEET
SCART DSP Input Select xxxx00xx0 SCART1 to DSP input (RESET position) xxxx01xx0 MONO to DSP input (set Sound A Mono in the channel matrix mode for the corresponding output channels) xxxx10xx0 SCART2 to DSP input xxxx11xx0 SCART3 to DSP input xxxx00xx1 SCART4 to DSP input xxxx11xx1 mute DSP input
xx00xxx0x
bit13:5
SCART1 Output Select SCART3 input to SCART1 output (RESET position) xx01xxx0x SCART2 input to SCART1 output xx10xxx0x MONO input to SCART1 output xx11xxx0x SCART1 DA to SCART1 output xx00xxx1x SCART2 DA to SCART1 output xx01xxx1x SCART1 input to SCART1 output xx10xxx1x SCART4 input to SCART1 output xx11xxx1x mute SCART1 output SCART2 Output Select SCART1 DA to SCART2 output (RESET position) SCART1 input to SCART2 output MONO input to SCART2 output SCART2 DA to SCART2 output SCART2 input to SCART2 output SCART3 input to SCART2 output SCART4 input to SCART2 output mute SCART2 output
bit13:5
00xxxx0xx 01xxxx0xx 10xxxx0xx 00xxxx1xx 01xxxx1xx 10xxxx1xx 11xxxx1xx 11xxxx0xx
bit4:0
must be zero
The RESET position becomes active at the time of the first write transmission on the control bus to the audio processing part. By writing to the ACB register first, the RESET state can be redefined. BEEPER 00 14hex Beeper Volume and Frequency bit15:8 Beeper Volume 00hex off maximum volume 7Fhex Beeper Frequency 01hex 16 Hz (lowest) 1 kHz 40hex 4 kHz FFhex BEEPER
bit7:0
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MSP 34x1G
Table 3-11: Write Registers on I2C Subaddress 12hex, continued Register Address Function Name
bit7:0
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Table 3-11: Write Registers on I2C Subaddress 12hex, continued Register Address Function
DATA SHEET
Determines the active channel for the noise generator.
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DATA SHEET
MSP 34x1G
3.3.2.7. Read Registers on I2C Subaddress 13hex Table 3-12: Read Registers on I2C Subaddress 13hex Register Address Function Name
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3.4. Programming Tips This section describes the preferred method for initializing the MSP 34x1G. The initialization is grouped into four sections: - SCART Signal Path (analog signal path) - Demodulator - SCART and I2S Inputs - Output Channels See Fig. 2-1 on page 9 for a complete signal flow.
DATA SHEET
3.5. Examples of Minimum Initialization Codes Initialization of the MSP 34x1G according to these listings reproduces sound of the selected standard on the loudspeaker output. All numbers are hexadecimal. The examples have the following structure: 1. Perform an I2C controlled reset of the IC. 2. Write MODUS register (with Automatic Sound Select). 3. Set Source Selection for loudspeaker channel (with matrix set to STEREO). 4. Set Prescale (FM and / or NICAM and dummy FM matrix).
SCART Signal Path 1. Select analog input for the SCART baseband processing (SCART DSP Input Select) by means of the ACB register. 2. Select the source for each analog SCART output (SCART Output Select) by means of the ACB register.
5. Write STANDARD SELECT register. 6. Set Volume loudspeaker channel to 0 dB.
3.5.1. SCART1 Input to Loudspeaker in Stereo Sound
Demodulator For a complete setup of the TV sound processing from analog IF input to the source selection, the following steps must be performed: 1. Set MODUS register to the preferred mode and Sound IF input. 2. Choose preferred prescale (FM and NICAM) values. 3. Write STANDARD SELECT register. 4. If Automatic Sound Select is not active: Choose FM matrix repeatedly according to the sound mode indicated in the STATUS register. I2
3.5.2. SCART1 Input to Loudspeaker in 3D-PANORAMA Sound
SCART and
S Inputs
1. Select preferred prescale for SCART. 2. Select preferred prescale for I2S inputs (set to 0 dB after RESET).
3.5.3. Noise Sequencer for 3D-PANORAMA Sound
Output Channels 1. Select the source channel and matrix for each output channel. 2. Set audio baseband processing. 3. Select volume for each output channel.
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MSP 34x1G
3.5.7. FM-Stereo Radio
3.5.4. B / G-FM (A2 or NICAM)
/ / Loudspeaker Volume 0 dB
3.5.8. Automatic Standard Detection A detailed software flow diagram is shown in Fig. 3-2 on page 48.
3.5.5. BTSC-Stereo
3.5.6. BTSC-SAP with SAP at Loudspeaker Channel
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DATA SHEET
@hyr)
:ULWH 6285&( 6( / (&7 6HWWLQJV
Write FM / AM-Prescale Write NICAM-Prescale
(Start Automatic Standard Detection)
set previous standard or set standard manually according picture information
no expecting MSPG-interrupt
, Q FDVH RI 063 , QWHUUXSW WR &RQWUROOHU
Read STATUS
Adjust TV-Display
If Bilingual, adjust Source Select setting if required
Fig. 3-2: Software flow diagram for a Minimum demodulator setup for a European Multistandard TV set applying the Automatic Sound Select feature
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DATA SHEET
MSP 34x1G
4. Specifications 4.1. Outline Dimensions
Fig. 4-1: PSDIP64-1: Plastic Shrink Dual In-line Package, 64 leads, 750 mil Ordering code: PP Weight approximately 8.77 g
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Fig. 4-2: PSDIP52-1: Plastic Shrink Dual In-line Package, 52 leads, 600 mil Ordering code: PO1) Weight approximately 5.13 g
Micronas delivers two types of PSDIP52 packages (-1, -2). The packages have slightly different outline dimensions, but are considered identical. For logistics reasons, the customer cannot choose the package to be delivered.
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Fig. 4-3: PSDIP52-2: Plastic Shrink Dual In-line Package, 52 leads, 600 mil Ordering code: PO1) Weight approximately 5.92 g
Micronas delivers two types of PSDIP52 packages (-1, -2). The packages have slightly different outline dimensions, but are considered identical. For logistics reasons, the customer cannot choose the package to be delivered.
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DATA SHEET
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MSP 34x1G
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PMQFP 80-11 PMQFP 64-2 PSDIP 64-1 PSDIP 52-1 / -2
DATA SHEET
Pin Name
Connection
(if not used)
Short Description
LV OBL OBL LV LV LV LV LV LV LV OBL OBL OBL OBL OBL OBL LV LV LV LV OBL LV LV LV LV OBL LV
Not connected I2C clock I2C data I2S clock I2S word strobe I2S data output I2S1 data input ADR data output ADR word strobe ADR clock Digital power supply 5 V Digital power supply 5 V Digital power supply 5 V Digital ground Digital ground Digital ground I2S2-data input Not connected Not connected Not connected Power-on-reset Not connected Not connected Headphone out, right Headphone out, left Reference ground 2 Loudspeaker out, right
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Pin No.
PMQFP 80-11 PMQFP 64-2 PSDIP 64-1 PSDIP 52-1 / -2
Pin Name
Connection
(if not used)
Short Description
Loudspeaker out, left Not connected Subwoofer output Not connected Not connected SCART output 2, right SCART output 2, left Reference ground 1 SCART output 1, right SCART output 1, left Volume capacitor AUX Analog power supply 8 V Volume capacitor MAIN Not connected Not connected Analog ground Analog ground Analog reference voltage Not connected SCART 4 input, left SCART 4 input, right Analog Shield Ground SCART 3 input, left SCART 3 input, right Analog Shield Ground SCART 2 input, left SCART 2 input, right Analog Shield Ground SCART 1 input, left SCART 1 input, right Reference voltage IF A / D converter
OUT OUT
LV LV OBL
OUT OUT
LV LV OBL OBL OBL LV LV OBL OBL OBL LV or AHVSS
LV LV AHVSS
LV LV OBL
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Pin No.
PMQFP 80-11 PMQFP 64-2 PSDIP 64-1 PSDIP 52-1 / -2
Pin Name
Connection
(if not used)
Short Description
LV LV OBL OBL LV LV OBL OBL LV AVSS via 56 pF / LV AVSS via 56 pF / LV OBL OBL OBL LV LV LV LV LV LV OBL OBL
Not connected Mono input Analog ground Analog ground Not connected Not connected Analog power supply 5 V Analog power supply 5 V IF input 1 IF common (can be left vacant, only if IF input 1 is also not in use) IF input 2 (can be left vacant, only if
IF input 1 is also not in use)
May 27, 2003 6251-511-1DS
Micronas
DATA SHEET
MSP 34x1G
Micronas
May 27, 2003 6251-511-1DS
MSP 34x1G
DATA SHEET