cxa1812q Sony Electronics, cxa1812q Datasheet
cxa1812q
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cxa1812q Summary of contents
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... S-terminal Compatible Video I/O Description The CXA1812Q developed for processing video I/O signals in VCRs. This IC has a built-in video output circuit designed especially for use with viewfinders (VF), making this IC optimal for use in camcorders. In addition, both the video input system and the viewfinder video output system provide title insertion functions, making it possible to insert characters and graphics into video signals ...
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... Block Diagram and Pin Configuration 24 CLAMP 25 YIN2 CLAMP 26 GND 27 CIN1 28 Y/VSEL CIN2 29 YOUTGND 30 YOUT 31 DRIV 32 YINVIN DDS1 MUTE1 MUTE2 DDS2 MUTE3 —2— CXA1812Q VOB BUFF 15 COUT1 YIN CLAMP 12 P.SAVE EVFYIN 11 CLAMP 10 SEL1 9 YOUTV ...
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... GND 660µ 1. 20µ 6 150 GND —3— CXA1812Q Externally applied voltage Description Chroma 75 driver GND internal regular output. Connect a decoupling capacitor. Do not use for external bias. Chroma signal output used for generating a composite video signal. 143mVp-p 314mVp-p ...
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... Y and C 75 drivers stop operating. The output of Pin 31 (YOUT) and Pin 5 (COUT) goes to high impedance. 150 Low ( normal operation High ( GND —4— CXA1812Q Externally applied voltage Description 314mVp-p driver power supply. driver power supply 0.5Vp-p 2 ...
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... The chroma signals input from Pins 27 and 29 are also muted simultaneously. Same as for Pin 4. This pin takes precedence over the Pin 16 control signal. Low (0 to 0.8V) : normal operation High ( Vcc) : insertion mode —5— CXA1812Q Externally applied voltage Description 0.5Vp-p 2.5V 314mVp insertion mode CC ...
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... Control input for black level insertion of the Y and composite video signals for the viewfinder. The chroma signal for Same as for Pin 6. the viewfinder is also muted. Low ( normal operation High ( —6— CXA1812Q Externally applied voltage Description 1Vp-p 1. insertion mode CC 628mVp-p ...
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... Same as for Pin 7. 143mVp-p Control input for switching the output signal format for Pin 19. Pin 19 output Same as for Pin 6. Low : Y signal High : Composite Low (0 to 0.8 V) — —7— CXA1812Q Externally applied voltage Description 0.5Vp-p 2. driver. 314mVp-p Pin 21 output Chroma signal High impedance ...
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... Pin Pin Symbol No. voltage 1 YOUT (Sync tip) 1 YINVIN (Sync tip) Equivalent circuit 800µ 1.2V GND 1.2m 1.5m —8— CXA1812Q Externally applied voltage Description driver output. 2Vp-p 1.3V driver feedback input. 0.5Vp-p 1.3V ...
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... CXA1812Q ...
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... CXA1812Q ...
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... CXA1812Q ...
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... BUFF 12dB 6dB —14— CXA1812Q DRIV BUFF ...
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... BUFF 12dB 6dB —15— CXA1812Q DRIV BUFF ...
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... H L MUTE output system (EE) and VFC output system DRIV To VFY output system To VFC output system MUTE 3 DRIV BUFF 6 4 SEL2 CMUTE —16— CXA1812Q YOUT1 17 BUFF To video signal processing block 15 BUFF COUT1 YOUT 75 31 220µ External 2.2µ ...
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... Pin 21. SEL1 VOB1 VOW1 DDS output system H MUTE 2 MUTE output system —17— CXA1812Q driver (gain=12 dB) drivers cease Y/VSEL 28 EVFY/VOUT 19 12dB EVFCOUT 6dB block ...
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... NTSC system, in the case of PAL system, because it is necessary to connect a color spectrum compensation IC with a delay element between the Y/C main signal processing IC and the CXA1812Q, if the title is inserted in the Y/C main signal processing IC, a temporal deviation occurs in the title insertion position for Y and C. This problem is resolved by using MUTE 3 in the C system only ...
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... Pins 7 (CIN), 27 (CIN1), and 29 (CIN2) are coupled within the IC signal of –0 less is input, a protective element may cause waveform distortion. When inputting a signal of –0 less recommended that a suitable DC bias be applied to the input signal. ) and 9 (YOUTV ) are power supplies for the output stage driver can be controlled by external elements. —19— CXA1812Q ) is the CC ...
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... Ta-Ambient temperature (°C) Frequency response (CEE system –10 –20 Vin=314mVp-p –30 100M 100k 1M Input amplitude vs. Second distortion –40 –50 –60 600 100 200 Input amplitude (mVp-p) —20— CXA1812Q 100 10M 100M Frequency (Hz) (CEE system) 300 400 500 600 ...
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... Vin=314mVp-p –40 –50 –60 –70 7M 10M 1M 2M Frequency (Hz) Frequency vs. Cross talk (CEE system) –40 Vin=314mVp-p –50 –60 –70 –80 7M 10M 1M 2M Frequency (Hz) —21— CXA1812Q <SEL2 SW cross talk> 400 500 600 10M <SEL2 SW cross talk> 10M ...
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... SONY CODE EIAJ CODE JEDEC CODE 32PIN QFP (PLASTIC 0.15 0.3 – 0.1 0.24 M PACKAGE MATERIAL LEAD TREATMENT QFP-32P-L01 QFP032-P-0707 LEAD MATERIAL PACKAGE MASS —22— CXA1812Q 0.1 + 0.35 1.5 – 0.15 + 0.2 0.1 – 0.1 + 0.1 0.127 – 0.05 0° to 10° EPOXY RESIN SOLDER PLATING 42 ALLOY 0.2g ...