MC44BC375UA SO16NB Package QFN20 Package Freescale Semi
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MC44BC375UA/D Rev. 08/2003 MC44BC375UA Tuned Audio/ Video High Integration (Channel dBµV Level)
MC44BC375UA
SO16NB Package
QFN20 Package
Freescale Semiconductor, Inc.
Ordering Information
Device MC44BC375UAD,R2 MC44BC375UAFC,R2 Temp. Range -20°C +85°C -20°C +85°C Package SO16NB QFN20
NOTE: tape reel, suffix.
Contents List
Features Descriptions Device Overview Maximum Ratings Thermal Rating Electrostatic Discharge Electrical Characteristics Selection High Frequency Characteristics Video Characteristics Audio Characteristics Characterization Measurement Conditions Modulator Functionality Circuit Schematics MC44BC375UA Application Schematic Packaging Instructions Marking Instructions Case Outline Mechanical Dimensions
This modulator circuit VCRs, boxes, similar devices. Figure shows connections.
PLLFLT
TVOVCC TVOUT
PLLFLT TVOVCC TVOUT VCCA VIDEO PSave/LO
XTAL PREEM
XTAL
PREEM AUDIO SPLFLT
PSave/LO
AUDIO
VIDEO
SO16NB package
QFN20 package
Figure MC44BC375UA Connection Diagram
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SPLFLT
VCCA
Features
Features
Channels selectable using Channel Selection (CHS) tuned PLL. They require external tank circuit components thus reducing sensitivity design need external adjustments. obtains reference from 4MHz crystal oscillator. sound subcarrier also generated on-chip without external components. 4.5MHz 5.5MHz Sound frequency selectable Sound Frequency Selection (SFS). Picture Sound subcarrier ratio also selectable Picture Sound selection (PSS) either 14dB 16dB. Power Save function selectable Psave/LO which turns internal VCOs mixers simultaneously switches Logic Output Port (LOP). external Varicap Diodes/ Inductor other tuned components needed. MC44BC375UA also following features. Channel selected Integrated On-Chip Oscillator external tank circuit Extremely External Components Count Adjustable Video Modulation Depth (85% adjustment) Peak White Clip Programmable Picture/Sound Carrier Ratio (14dB 16dB) selected Integrated On-chip Programmable Sound Subcarrier Oscillator (4.5 5.5MHz selected pin) external varicaps Modulator Standby Mode selected Psave/LO Transient Output Inhibit During Lock-up Power-on Logic Output Port selected Psave/LO (Antenna Switch Driver) Extremely Robust protection, Minimum 4kV, typical) 6kV. Available dBµV output level (MC44BC375U) Available SO16 package QFN20 package 0.50 pitch)
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Descriptions
Descriptions
SO16 Package Description
SO16 Package Descriptions
number Name XTAL PREEMP AUDIO SPLFLT PSAVE/LO VIDEO VCCA TVOUT TVOVCC PLLFLT Description Channel select (channel channel select (PS=12 PS=16dB) Logical output port controlled Crystal oscillator input Ground Pre-emphasis capacitor Audio input Sound loop filter Power save mode control Video input Main analog supply voltage Analog ground output signal output stage supply voltage loop filter Sound carrier select (4.5 MHz)
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QFN20 Package Description
Table QFN20 Package Descriptions
number Name XTAL PREEMP AUDIO connected Crystal oscillator input Ground connected Pre-emphasis capacitor Audio input Description
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Descriptions
Table QFN20 Package Descriptions
number
Name SPLFLT PSAVE/LO VIDEO VCCA TVOUT TVOVCC PLLFLT Sound loop filter
Description
Power save mode control Video input Main analog supply voltage connected connected Analog ground output signal output stage supply voltage loop filter Sound carrier select (4.5 MHz) Channel select (channel channel select (PS=12 PS=16dB) Logical output port controlled
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Device Overview
Device Overview
Figure shows simplified block diagram MC44BC375UAdevice. MC44BC375UA device main sections: modulator section which accepts audio video inputs modulates carrier. section synthesize UHF/VHF output channel frequency (from integrated oscillator, divided output) high frequency BICMOS technology permits integration tank circuit certain filtering functions.
VIDEO SPLLFLT
Peak White Clamp
MODULATOR SECTION
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TVOVCC
Video Modulator
31.25kHz Sound Sound Oscillator Modulator Audio Ampli
AUDIO
PREEM
TVOUT
Prog. Divider
Power save Psave/
VCCA
Sound Modulator
Freq Select
Test Mode Divider
Divider
Channel Select
SECTION
OSC.
PS1/2 Select
Prescale
Prog. Divider
Phase Comp.
31.25kHz Divider /128
4Mhz
PLLFLT
XTAL
Figure MC44BC375UA Block Diagram
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Maximum Ratings
Maximum Ratings
Tamin Tamax Supply voltage Minimum operating ambient temperature Maximum operating ambient temperature Parameter Value Unit
This device contains protection circuitry guard against damage high static voltage electric fields. However, precautions must taken avoid applications voltage higher than maximum rated voltages this high impedance circuit. proper operation, input output voltages should constrained ranges indicated Recommended Operating Conditions.
Tstgmin Minimum storage temperature Tstgmax Maximum storage temperature Junction Temperature
Maximum ratings those values beyond which damage device occur. functional operation, values should restricted Recommended Operating Condition. Meets Moisture Sensitivity Level pack required
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Thermal Rating
Rthja Parameter Thermal resistance from Junction Ambient Thermal resistance from Junction Ambient Value Unit °C/W °C/W
Electrostatic Discharge
Electrostatic Discharge (ESD) tests done pins.
Parameter (Machine Model) 883C method 3015-7 (Human Body Model) 883C method 3015-7
4000
6000
Unit
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Freescale Semiconductor, Inc. Electrical Characteristics
Electrical Characteristics
100% Tested 100% Correlation tested Characterized samples Design parameter.
Specification Conditions:
Unless otherwise stated: 5.0V, amb. 25°C.Video input 1Vp-p, step greyscale. inputs outputs into load. SPECIFICATIONS ONLY VALID ENVELOPE DEMODULATION
Power Supply Parameters Unit sections active PSave/LO=LO Notes Type
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Operating Supply Voltage range Total Supply Current Total Standby Mode Supply Current
Parameter Threshold voltage level pins CHS, PSS, SFS, PSave/LO Sound Comparator Charge Pump Current: During locking When locked Comparator Charge Pump Current Crystal Oscillator Stability negative resistance Logic Output Port: Saturation voltage I=15mA Leakage current
Unit
Type
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Selection
Selection
Name PSave/LO 14dB Power save Mode (Low voltage) 5.5Mhz (grounded) 16dB Normal Operation (High impedance 4.5Mhz (Open +5V)
default (open condition), pins "HI".
Test Modes
level 0.3V 1.1V 1Vbe 1Vbe 0.3V 1.1V Description frequency testing frequency divided Base band test mode drive applied modulators) Transient Output Inhibit Disabled Sound Oscillator Force Sound Upper current source Force Sound Lower current source
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VIDEO
NOTE:
Test modes intended manufacturing test purpose only used normal application.
High Frequency Characteristics
following specifications unless otherwise stated: 5.0V, amb. 25°C.Video input 1Vp-p, step greyscale.RF inputs/outputs into load.SPECIFICATIONS ONLY VALID ENVELOPE DEMODULATION. Measured both channel Section "Characterization Measurement Conditions" page
Parameter output level Sound subcarrier Harmonics (fp+n*fs) Second Harmonic chroma subcarrier. Picture carrier Using Test Conditions Unit dBuV dBµV dBµV dBµV Type
Chroma/Sound intermodulation: (fsndUsing fchr) (picture carrier) Harmonics Band (picture carrier) Spurious band spurious range) Crystal Spurious MHz) Note: harmonic harmonic 1/2*Fo 1/4*Fo 3/2*Fo 3/4*Fo video sound modulation video sound modulation
Picture carrier harmonics highly dependant layout decoupling capacitors.
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Video Characteristics
Video Characteristics
Parameter Video bandwidth Video input level Video input current Video input impedance Video Differential Phase Differential Gain Luma/Sync ratio Video modulation depth Unweighted Weighted line standard (FCC) line standard (FCC) Input ratio 7.0:3.0 Video input level=1.0 Vcbvs Video Modulation Depth Video=1.4 Vcbvs 6.8/ 90.5 75Ohm load Test Conditions Reference 100kHz, measured 5MHz -1.5 -0.5 +/-1.5 +/-5 7.2/ 99.5 Unit Vcvbs Type
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Peak White Clip
Audio Characteristics
audio measurement specified pre-emphasis circuit.
Parameter Picture Sound ratio (Pin2) (Pin2) Test Conditions Unit Type
Picture Sound ratio difference between (100% Modulation Deviation) (100% Modulation Deviation) Audio input resistance Audio Frequency response Audio Distortion (THD only) Audio with Sync Buzz @1kHz Measure from 50Hz 15kHz 100% (+/- kHz) Video
Using specific pre-emphasis circuit Audio Input: 1Khz mVrms Audio Modulation Depth -2.5
Characterization Measurement Conditions
Device default configuration unless otherwise specified: Sound subcarrier frequency 5.5Mhz Picture-to-sound carrier ratio 12dB frequencies
Inputs Output into 75ohm Load using transformation.Video Input pk-pk.Audio pre-emphasis circuit engaged.
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Characterization Measurement Conditions
Measurement Set-up TVOUT output level
Device Signals Set-up
Video: steps grey scale audio
Measured picture carrier dBuV with HP8596E Spectrum Analyzer using transformation, cables losses transformation pads having been calibrated. Measurement used reference other tests: TVout_Ref Sound Subcarrier Harmonics Measure second third sound harmonics levels reference picture carrier (TVout_Ref).
Picture carrier Sound carrier
Video: steps grey scale Audio signal
Sound harm Sound harm +5.5Mhz +11Mhz +16.5Mhz
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Second Harmonics Chroma subcarrier Measure dBc, reference picture carrier (TVout_Ref), second harmonic chroma channel frequency plus times chroma frequency, resulting following spectrum
Picture carrier Chroma carrier Frequency Frequency 100kHz 100Khz 700mVpkpk
700mV pk-pk
audio Video: 700mVpk-pk 100Khz sinusoidal signal inserted black level active video area.
Sound carrier Chroma Harmonic
+4.43Mhz +5.5Mhz
+8.86Mhz
Chroma/Sound intermodulation Measure dBc, reference picture carrier (TVout_Ref), intermodulation product channel frequency plus sound carrier frequency (+5,5Mhz) minus chroma frequency (-4,43Mhz), resulting following spectrum. Intermodulation product channel frequency +1,07Mhz.
Picture carrier Chroma carrier Chroma/Sound Intermod. Sound carrier
audio signal Video: 700mVpk-pk 100Khz sinusoidal signal inserted black level active video area.This generated using Rohde Schwarz Video Generator inserting required frequency from Signal generator.
Frequency Frequency 100kHz 4.43Mhz
700mVpkpk
700mV pk-pk
+1.07Mhz
+4.43Mhz +5.5Mhz
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Freescale Semiconductor, Inc. Characterization Measurement Conditions
Device Signals Set-up Measurement Set-up Picture Carrier Harmonics Measure dBc, reference picture carrier (TVout_Ref), second third harmonic channel frequency, resulting following spectrum.
Picture carrier
Video signal Audio signal
harmonic
harmonic
Band Spurious
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Measure dBuV spurious levels 0.25, 0.5, 0.75 times channel frequency, resulting following spectrum Measure from 40Mhz 1Ghz.
Picture carrier
Video signal Audio signal
Spurious
Fo/4
Fo/2 Fo*3/4
Fo*3/2
Band Spurious 4Mhz Crystal Spurious Video signal Audio signal Measure dBc, reference picture carrier (TVout_Ref), spurious levels falling into video bandwidth Fo+/-5Mhz (15.125Khz 31.25Khz from reference dividers 4Mhz from crystal). Video Bandwidth audio Video: 600mVpk-pk sinusoidal signal inserted black level active video area. Video signal demodulated spectrum analyzer, peak level 100Khz signal measured reference. frequency then swept from 100Khz 5Mhz, then difference from 100Khz reference level measured. Weighted Video Signal Noise Video: 100% White video signal 1Vpkpk. Audio signal This measured using Rohde Schwarz AMFS Demodulator (using CCIR Rec. weighting network, 100kHz 5MHz band with sound trap envelope detection, Rohde Schwarz Video Analyzer. Video Analyzer measures ratio between amplitude active area video signal (700mV) noise level Vrms video black level which show below. VideoS/N calculated log(700
noise level Vrms
Unweighted Video Signal Noise Same above with CCIR filter disabled. Same above.
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Characterization Measurement Conditions
Device Signals Set-up
Measurement Set-up Video Differential Phase
Video: step Grey Scale- 1Vpk-pk. Audio signal This measured using Rohde Schwarz AMFS Demodulator (using CCIR Rec. weighting network, 100kHz 5MHz band with sound trap, envelope detection, Rohde Schwarz Video Analyzer.
line CCIR 330, video analyzer measure consists calculating difference Chroma phase black level different chroma subcarrier phase angles each step greyscale. largest positive negative difference indicates distortion.
largest positive negative difference DIFF PHASE phase position 100%
video analyzer method takes worst step from first steps. Video Differential Gain line CCIR shown below, video analyzer measure consists calculating difference Chroma amplitude black level different amplitudes each step greyscale. largest positive negative difference indicates distortion.
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Video: step Grey Scale- 1Vpk-pk. Audio signal This measured using Rohde Schwarz AMFS Demodulator (using CCIR Rec. weighting network, 100kHz 5MHz band with sound trap envelope detection, Rohde Schwarz Video Analyzer.
5-step Greyscale with Chroma subcarrier superimposed
(not scale), line CCIR 330.
largest positive negative difference DIFF GAIN amplitude position
100%
video analyzer method takes worst step from first steps. CCIR line corresponds line NTSC/M standard Video Modulation Depth This measured using HP8596E Spectrum Analyzer with Trigger option, allowing demodulation triggering specified Line. analyzer centred maximum peak Video signal reduced zero Hertz span Linear mode demodulate Video carrier.
A(mV) 6-10mV)
Audio signal Video: step grey scale
B(mV) (0.6 3mV)
Line Demodulated Spectrum Analyzer-BG standard
Modulation Depth calculated (A-B)/A Picture Sound ratio Measure sound carrier reference picture carrier (TVout_Ref) "PS" bit=0 (PS=12dB typical) "PS" bit=1 (PS=16dB),
Picture carrier
Video signal Audio Signal "PS"
Sound carrier
+5.5Mhz
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Freescale Semiconductor, Inc. Characterization Measurement Conditions
Device Signals Set-up Measurement Set-up Audio Modulation Depth Modulation Video Black Level Audio signal: 1Khz, 205mVrms. This measured using Rohde Schwarz AMFS Demodulator HP8903A Audio Analyzer 1kHz audio signal 205mV 1kHz supplied Audio Analyzer, demodulated signal deviation indicated Demodulator peak. This value then converted deviation, based specified standards. Audio Frequency response audio signal 1KHz 100mVrms supplied Audio Analyzer, demodulated Demodulator audio analyzer measures Video Black Level amplitude this demodulated audio signal: this value taken Audio signal: 50Hz 15KHz, 100mVrms reference (0dB). This measured using Rohde audio signal then swept from 50Hz 15KHz, demodulated Schwarz AMFS Demodulator amplitude measured relative 1KHz reference. HP8903A. Audio pre-emphasis de-emphasis circuits engaged, audio analyzer filters switched OFF. Audio Distortion Audio: 1Khz, adjustable level Video Black Level This measured using Rohde Schwarz AMFS Demodulator HP8903A Audio Analyzer 1kHz. output level Audio analyzer varied obtain deviation 50kHz indicated Demodulator. input detector Audio Analyzer converts level combined signal noise distortion then removes fundamental signal (1kHz) after having measured frequency. output detector converts residual noise distortion voltmeter measures both signals calculates ratio signals. ADist Distorsion Noise Distorsion Noise Signal Audio Signal Noise Audio Analyzer alternately turns it's internal audio source make measure Audio signal plus noise then another measure only noise. Audio: 1Khz, adjustable level measurement made using internal CCIR468-2 Filter Video: Color Bars Audio Analyzer together with internal 30+/-2kHz (60dB/decade) This measured using Rohde Schwarz AMFS Demodulator Lowpass filters. HP8903A Audio Analyzer 1kHz. AMFS demodulator uses quasi-parallel demodulation case normal set. this mode Nyquist filter bypassed output level Audio analyzer video carrier used without added delay effectuate intercarrier varied obtain Modulation Deviation conversion. this mode phase noise information fully cancels 25kHz indicated AMFS true measured Demodulator. Signal Noise Noise
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Modulator Functionality
Modulator Functionality
13.1 Power Supply
device Vccs (pins must applied same time ensure internal blocks correctly biased. bias other before applied device.
13.2 Test Modes
MC44BC375UA test modes enabled voltage level higher than pins CHS, PSS, VIDEO. Care must taken application reach levels higher than those pins.
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13.3 Standby Modes
During standby mode, modulator switched power consumption: sound oscillator, oscillator dividers, video sound modulator sections bias internally turned OFF. Modulator programmed standby mode when PSave/LO "LO" level (See SELECTION section).
13.4 Logic Output Port
Logic Output Port used control external switch (such antenna switch attenuator). This open collector transistor able drive 15mA voltage. level switched between "HI" "LO" level with "Psave/LO" (See SELECTION section).
13.5 Transient Output Inhibit
minimize risk interference other channels while acquiring lock desired frequency, Sound Video modulators turned power-ON from zero (i.e. switched from device switched from "Standby mode" "Normal operation"). There time-out 263ms until output enabled. This lets settle programmed frequency. During 263ms time-out, sound current source 10µA typical speed locking time; after 263ms time-out, current source switched care when selecting loop filter components, ensure loop transient does exceed this delay. test purposes, possible disable 263ms delay (see TEST MODES section).
13.6 Video Section
modulator requires composite video input with negative going sync pulses nominal level 1Vp-p. This signal coupled video input where sync level clamped. Video modulation depth typical value given 1VCBVS input level. adjusted lower value simply adding resistive divider video input, resulting lower signal seen video input stage.
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Freescale Semiconductor, Inc.Modulator Functionality
video signal then passed peak white clip circuit whose function soft clip video waveform amplitude from sync peak white goes high. this overmodulation carrier video avoided. clipping function always engaged.
13.7 Sound Section
multivibrator oscillator fully integrated does require external component. internal pass filter matched structure give very harmonics level. sound modulator system consists modulator incorporating sound subcarrier oscillator. audio input signal coupled into amplifier which then drives modulator. audio pre-emphasis circuit high-pass filter with external capacitor internal resistor (100kOhms typical). recommended capacitor value (750pF) standards; time constant 75µs. 470pF standards (50µs).
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Audio bandwidth specification 50Hz 15Khz range, with pre-emphasis circuit engaged. Without this pre-emphasis circuit, possible extend audio bandwidth high frequencies there internal frequency limitation (stereo application).
13.8 Section Dividers
reference divider fixed divide resulting reference frequency 31.25Khz with 4.0Mhz crystal. 31.25Khz reference frequency used both Sound PLLs. prescaler fixed divide permanently engaged. divider also fixed divide programmable divider's division ratio controlled voltage order channel channel
13.9 Selectable Pins
Pins CHS, PSS, internally pulled
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Circuit Schematics
Circuit Schematics
100K
Psave
1.5K
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XTAL
PREM
11.8k
audio
AUDIO
SPLLFLT
TVOVCC
PLLFLT
VIDEO
Figure Schematics
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Freescale Semiconductor, Inc. Application Schematic MC44BC375UA
MC44BC375UA Application Schematic
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PS1/2 Select
Select
Select
Loop Filter must close
47nF 22nF
10nF
2.2k
10nF TVOUT 220nF R2** R1** Video
Freescale Semiconductor, Inc.
Cx*** 4MHz Pre-em 330nF
100nF Audio 22nF
Psave/LO
This match with video signal applied thru coaxial cable. removed case high impedance video generator. reduce video modulation depth from typical value (for example R1=1K R2=10K reduce about dependant crystal characteristics (Cx=27pF Freescale application Board) value depends standard: 470pF 50µs pre-emphasis time constant (B/G standard) 750pF 75µs (M/N standard). Figure MC44BC375UA Application Schematic
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Packaging Instructions
Packaging Instructions
Tape reel packaging 12MRH00360A issue with following conditions applicable Dual InLine (SOIC) package Quad Flat Pack Lead Square (QFN).
Figure Dual In-line (SOIC)
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Component Orientation: Arrange parts with side closest tape's round sprocket holes tape's trailing edge.
Figure Quad Flat Pack Lead Square
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Marking Instructions
Marking Instructions
following instructions accordance with 12MRH00191A specification.
17.0.1 SO16NB Package
marked part across package. width mils, length least four times width. placement extend across chamfer dimple areas. Dimple line: M44BC375UA Part number coded digits maximum
M44BC375UA
AWLYWW
Freescale Semiconductor, Inc.
line: Assembly site code digits) followed wafer code digit), year digit)
17.0.2 QFN20 Package
line: P75UA (Part number coded digits) line: ALYW (Assembly site code digit) wafer code digit), year digit) work week digit)
P75UA
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Case Outline Mechanical Dimensions
Case Outline Mechanical Dimensions
18.1 SO16 package
Freescale Semiconductor, Inc.
Millimeters 1.35 0.35 0.19 0.25
Inches 0.054 0.004 0.385 0.229 0.150 0.014 0.008 0.016 0.010 0.068 0.009 0.393 0.244 0.157 0.019 0.009 0.049 0.019
1.75 0.25 0.49 0.25 1.25
Note: Dimensions Tolerances ASME Y14.5M, 1994. Note: Controlling dimension: Millimeters. Note: Dimension include mold protrusion. Note: side. Maximum mold protrusion 0.15 (0.006)
1.27
0.050
Note: Dimension does include Dambar protrusion. Allowable Dambar protrusion shall 0.127 (0.005) total excess dimension maximum material condition.
Figure SO16NB Package
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Freescale Semiconductor, Inc.Mechanical Dimensions Case Outline
18.2 QFN20 4mm, 0.50 pitch)
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Figure QFN20 Package
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Case Outline Mechanical Dimensions
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Figure QFN20 Package
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Case Outline Mechanical Dimensions
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Figure QFN20 Package
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Freescale Case Outline Mechanical Dimensions
Semiconductor, Inc.
Freescale Semiconductor, Inc.
Figure QFN20 Package
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NOTES
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