LC83026E Digital Signal Processor Karaoke Systems Overview
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Ordering number EN5663
LC83026E
Digital Signal Processor Karaoke Systems
Overview
LC83026E provides audio signal processing required karaoke systems, including pitch shift, microphone echo, voice muting, simple surround simulation. special-purpose that implements karaoke processing with addition single external 256-Kb DRAM. LC83026E includes on-chip converters supports both digital analog inputs outputs. functions characteristics modified match needs product sending coefficient data from microcontroller over serial interface.
Features
Application features Pitch shift LC83026E supports pitch shifting quarter tone steps, octave scale tone units specified command data. This pitch shifting applied either music track microphone input. also possible pitch shifting octave arbitrary steps setting coefficient values. Microphone echo LC83026E apply echo processing input signal from microphone converter. echo coefficients, including amount echo delay time, set. Voice muting LC83026E provides attenuation monaural components music signal. This allows that include vocals used karaoke. voice muting function turned command data transferred over serial interface. Simple surround LC83026E implements simple surround simulation function adding delay components music signal. LC83026E includes sets simple surround coefficients preset data, these selected switched using command data transferred over serial interface. User-original surround effects implemented setting
coefficients, algorithm fixed. Versatile input mixing LC83026E supports hybrid mixing digital music inputs analog music inputs both left right channels support processing wide range disks. Audio inputs outputs Inputs: Digital system (stereo) converters Three channels Outputs: Digital system (stereo) converters channels converters Second-order delta-sigma modulation Three channels converters oversampling digital filters third-order noise shaper system channels Master clock: 768fs External memory: 256K (64K bits) external DRAMs used. Microcontroller input: Synchronous 8-bit serial data Power-supply voltage: single-voltage supply Package: QFP80E
Package Dimensions
unit: 3174-QFP80E
[LC83026E]
SANYO: QIP80E
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, Chome, Ueno, Taito-ku, TOKYO, JAPAN
63097HA(OT) 5663-1/16
LC83026E Assignment
Block Diagram
Program Program counter Loop counter
Program decoder
Microcontroller interface
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LC83026E Functions
OSC1 OSC2 FS384I SELC Control pins SAIF SAOF Crystal oscillator connection (768fs) Crystal oscillator connection (768fs) 384fs input Audio clock source switching (High: external, low: internal) Digital audio input mode switching (Low: backward packing, high: forward packing) Digital audio output mode switching (Low: 48fs, high 64fs) Reset Test (Must connected ground during normal operation.) Coefficient transfer mode control Initial operating mode control high level should applied normal operation.) Microphone signal input level: (low output)/No (high output) output Music signal input level: (low output)/No (high output) output signal output signal output External memory read signal output External memory write signal output Address output Function
TEST5
External memory interface
DREAD DWRT LRCKI LRCKO BCKI BCKO FS384O ADL1
Data input output (Normally only used) clock input (1fs) clock output (1fs) clock input (32fs higher) clock output (48fs 64fs) 384fs output Digital audio data input (16-bits, first) Digital audio data output (16-bits, first, backward packed) converter input (left channel) converter output (left channel) converter output (left channel) converter input (right channel) converter output (right channel) converter output (right channel) converter input (microphone) converter output (microphone) converter output (microphone) converter output (left channel) converter output (left channel) converter output (right channel) converter output (right channel) Input serial input request signal Output that indicates that serial input progress Serial data input from control microcontroller (8-bit serial input) transfer clock input Ready signal input (from control microcontroller) that indicates completion serial data input.
Audio interface Microcontroller interface
ADL2 ADL3 ADR1 ADR2 ADR3 ADM1 ADM2 ADM3 DALP DALN DARP DARN SIRQ SIAK SICK SRDY
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LC83026E
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Digital block (Must connected <Make connections short possible that potential differences occur between pins.> DVSS1 ADLVDD Power supply ADRVDD ADMVDD DALVDD DARVDD ADLVSS ADRVSS ADMVSS DALVSS DARVSS Digital block (Must connected ground.) <Make connections short possible that potential differences occur between pins.> converter (left channel) (Connect converter (right channel) (Connect converter (microphone) (Connect converter (left channel) (Connect converter (right channel) (Connect converter (left channel) (Connect ground.) converter (right channel) (Connect ground.) converter (microphone) (Connect ground.) converter (left channel) (Connect ground.) converter (right channel) (Connect ground.) Design wiring that potential differences occur between analog system pins either other analog system pins digital system pins. Design wiring that potential differences occur between analog system pins either other analog system pins digital system pins. Function
DVDD1
Circuits
Pins ASO, LRCKO, BCKO, RAS, CAS, DREAD, DWRT, FS384O, Specifications output Circuit
Output data SIAK CMOS intermediate current output
ADL2, ADL3, ADM2, ADM3, ADR2, ADR3
Output data
Analog output
DALP, DALN, DARP, DARN
Output data
SICK, SIRQ, SRDY, (OSC1) FS384I, BCKI, ASI, LRCKI
Schmitt input Input data Schmitt input
TEST1 TEST5
Normal input
Input data
Input with built-in pull-up resistor Input data
Input data SELC, SAIF, SAOF Input with built-in pull-down resistor
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LC83026E
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Pins Specifications Circuit
CMOS intermediate current output Schmitt input
Input data control Output data
Input data N-channel open drain intermediate current output Normal input during normal operation Test output data
ADL1, ADR1, ADM1
Analog input
Input data
Specifications
Absolute Maximum Ratings 25°C,
Parameter Maximum supply voltage Input voltage Symbol Peak output current IOP1 IOP2 IOA1 IOA2 Average output current IOA1 IOA2 Allowable power dissipation Operating temperature Storage temperature Topr Tstg OSC2 output Outputs other than OSC2 Audio interface, external interface Microcontroller interface, Audio interface, external interface: Microcontroller interface, FS384O, LRCKO, BCKO, Total DWRT, DREAD, RAS, CAS, SIAK, Total +70°C Conditions Ratings -0.3 +7.0 -0.3 +0.3 Values oscillator voltage allowable. -0.3 +0.3 +125 Unit Notes
Output voltage
Allowable Operating Ranges +70°C, 4.75 5.25 unless otherwise specified
Parameter Operating supply voltage Symbol VIH1 Input high-level voltage VIH2 VIH3 VIL1 Input low-level voltage VIL2 VIL3 Instruction cycle time tCYC Audio interface external interface SELC, SAIF, SAOF, TEST1 TEST5 RES, OSC1, microcontroller interface Audio interface external interface SELC, SAIF, SAOF, TEST1 TEST5 RES, OSC1, microcontroller interface Conditions Ratings 4.75 0.75 0.25 59.11 5.25 Unit Notes
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LC83026E
Continued from preceding page.
Ratings
Parameter [External Clock Input Conditions] Frequency Pulse width Rise time Fall time
Symbol
Conditions
Unit Notes
fEXT fEXTH fEXTL tEXTR tEXF
Related FS384I pin. Figure maximum: 44.1 1.005 minimum: 44.1 0.995
16.85
17.01
[Self-Excited Oscillation Conditions(crystal oscillator)] Oscillator frequency Oscillator stabilization period [Audio Data Input Conditions] Transfer clock period Transfer clock pulse width Data setup time Data hold time [Serial Clock Conditions] Serial clock period Serial clock pulse width Data setup time Data hold time SRDY hold time SRDY pulse width [DRAM Input Conditions] Input data setup time Input data hold time tDSI tDHI Related external DRAM data input. Figure (Related D7.) tSCYC tSCW tSYH tSYW Related microcontroller interface. Figure (Related SICK, SRDY.) tBCYC tBCW Related BCKI. Figure fOSC tOSCS OSC1 OSC2. Figure 44.1 kHz/48 ±0.1% Figure 33.84 40.55
Electrical Characteristics +70°C, 4.75 5.25 unless otherwise specified
Parameter Symbol Conditions SELC, SAIF, SAOF, (Input pins with pull-down resistors) (Nch transistor OFF) Other input-only pins RES, (Input pins with pull-up resistors) Other input-only pins -0.4 VSS, -250 -1.2 4.98 4.997 0.065 0.32 -100 Ratings Unit Notes
IIH1 Input high-level current IIH2 IIH3 IIL1 Input low-level current IIL2 IIL3 Output high-level voltage VOH1 VOH2 VOL1 VOL2 IOFF
2,3,8 2,3,8
Output low-level voltage Output leakage current Input output capacitance [Audio Data Output Timing] Output data hold time Output data delay time
BCK0 ASO. Figure
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LC83026E
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Parameter [External DRAM Access Timing] high-level pulse width low-level pulse width high-level pulse width low-level pulse width cycle time delay time hold time hold time address setup time address hold time address setup time address hold time DWRT pulse width Write command setup time Write command hold time Output data setup time Output data hold time tRAS tCAS tRCD tCSH tRSH tASR tRAH tASC tCAH tWCS tWCH tDSO tDHO Crystal oscillator Current drain VDD1, VDD2, VDD3 when operating 33.8688 MHz. OSC1 OSC2. Figure Output timing external DRAM. Figure Output timing external DRAM. Figure Symbol Conditions Ratings Unit Notes
Electrical Characteristics 25°C, unless otherwise specified
Parameter [A/D Converter Block] Total harmonic distortion Signal-to-noise ratio Crosstalk [D/A Converter Block] Total harmonic distortion Signal-to-noise ratio Crosstalk Notes: D-THD D-S/N kHz, kHz, kHz, 0.01 A-THD A-S/N kHz, kHz, kHz, 0.05 Symbol Conditions Ratings Unit Notes
10,11 10,11
10,11 10,11
output level pins: ASO, FS384O, BCKO, LRCKO, RAS, CAS, DREAD, DWRT CMOS intermediate current output pins: SIAK N-channel open drain intermediate current output pins: Schmitt input pins: BCKI, ASI, LRCKI, FS384I Normal input pins: TEST1 TEST5, SELC, SAIF, SAOF Schmitt input pins: RES, SICK, SIRQ, SRDY, OSC1 When load capacitance values oscillator capacitors include line capacitances. typical values current drain room temperature, typical samples. 44.1 low-pass filter used. Measurement with external circuit structure constants Sanyo evaluation board. With weight filter used.
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LC83026E
Figure External Clock Input Waveform (FS384I)
Lower limit operating
Figure Crystal Oscillator Circuit
Stable oscillation Oscillator stabilization time
Figure Oscillator Stabilization Time
Transfer clock (BCKI)
Input data (ASI)
Figure Audio Data Input Conditions
Serial clock (SICK)
Input data (SI) Transfer complete (SRDY)
Figure Microcontroller Interface
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LC83026E
Figure External DRAM Data Input Timing
Transfer clock (BCKO)
Output data (ASO)
Figure Audio Data Output Timing
Figure External DRAM Data Output Timing Differences between LC83025E LC83026E
Parameter LC83025E Decimation filter improved Input comparator improved converter block VREF added association with improvements input comparator. VREF external capacitor must located close possible LC83026E, must connected with lines that short possible. oversampling filters used converter block Second-order noise shaping Single-pin output used. Reset time When digital input provided (when SELC low) more sampling period LRCKI BCKI pins must connected LRCKO BCKO pins. oversampling filters used Third-order noise shaping Two-pin output operation more sampling periods LRCKI BCKI pins must connected either VSS; they need connected LRCKO BCKO pins. LC83026E
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Overall Signal Flow
Clip processing Surround
Voice mute
Pitch shifter
Clip processing
LC83026E
Bass
Clip processing
Clip processing
margin
Microphone echo
high-pass filter
5663-10/16
LC83026E
VREF capacitor must located close possible Note: external circuits should located close possible
5663-11/16
Figure Converter External Circuit Example
Left channel output
LC83026E
Identical left channel circuit
Right channel output
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Figure Converter External Circuit Example
LC83026E Application Circuit Example Outline (When digital input used)
DVDD1 DVDD3 DVSS1 DVSS3
values here include printed circuit board capacitances.
converter external circuit (left channel)
converter external circuit (left channel)
converter external circuit (right channel)
converter external circuit (right channel) converter converter external circuit (microphone)
Microcontroller (Coefficient transfer mode control pin)
(Initial mode selection pins) (Microphone input level display pin) (Music input level display pin)
TEST1 TEST5
Whether digital inputs and/or analog outputs used depends specifications application. these pins used, unused input pins should tied high unused output pins should left open.
5663-13/16
LC83026E Application Circuit Example Outline (When digital input used
Divide-bytwo circuit
DVDD1 DVDD3 DVSS1 DVSS3
values here include printed circuit board capacitances.
converter external circuit (left channel)
converter external circuit (left channel)
converter external circuit (right channel)
converter external circuit (right channel) converter converter external circuit (microphone) CD-DSP other circuit
Microcontroller
(Coefficient transfer mode control pin)
(Initial mode selection pins) (Microphone input level display pin) (Music input level display pin)
TEST1 TEST5
Apply high levels these pins according audio interface mode used.
Whether digital inputs and/or analog outputs used depends specifications application. these pins used, unused input pins should tied high unused output pins should left open.
5663-14/16
LC83026E Application Circuit Example Outline (When digital input used
DVDD1 DVDD3 DVSS1 DVSS3
values here include printed circuit board capacitances.
converter external circuit (left channel)
converter external circuit (left channel)
converter external circuit (right channel)
converter external circuit (right channel) converter converter external circuit (microphone) CD-DSP other circuit
Microcontroller
(Coefficient transfer mode control pin)
(Initial mode selection pins) (Microphone input level display pin) (Music input level display pin)
TEST1 TEST5
Apply high levels these pins according audio interface mode used.
Whether digital inputs and/or analog outputs used depends specifications application. these pins used, unused input pins should tied high unused output pins should left open.
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LC83026E
products described contained herein intended surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment like, failure which directly indirectly cause injury, death property loss. Anyone purchasing products described contained herein above-mentioned shall: Accept full responsibility indemnify defend SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees, jointly severally, against claims litigation damages, cost expenses associated with such use: impose responsibility fault negligence which cited such claim litigation SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees jointly severally. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties. This catalog provides information June, 1997. Specifications information herein subject change without notice. 5663-16/16
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