bh7273kv ROHM Co. Ltd., bh7273kv Datasheet
bh7273kv
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bh7273kv Summary of contents
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... Digital VCRs BH7273KV The BH7273KV is an equalizer and ATF circuit IC developed for use with digital video cassettes (DVC). By using this IC simple to design the filter for the equalizer required for DVD sets. In addition, the ATF circuit detects the pilot signals and generates error signals. ...
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... SUBTRACT Mix 47k 47k AMP 25dB AMP 697.5kHz BPF BH7273KV 465.0kHz BPF 14 / 24dB VCA AMP Function BH7273KV N.C. 31 N.C. 30 N.C. 29 N.C. BF OUT2 28 BF OUT1 GND 24 TVF2AMP OUT AMP 23 TVF2AMP – ...
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... V Pin 1 voltage for SLEEP mode 0.0 — 1.0 V Pin 1 voltage for SLEEP mode 0.0 — 1.0 V Pin 62 voltage for ATF VCA gain to be low 2.0 — 4.9 V Pin 62 voltage for ATF VCA gain to be high BH7273KV Conditions P-P = 300mV IN P-P , pin 13 = 3.0V P-P , pin 13 = 0.25V P-P = 150mV IN P-P P-P = 150mV IN P-P P-P = 300mV IN P-P ...
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... SUBTRACT MIX BH7273KV VCA AMP 0.1 47p 1k 33p 600 470 300 0.1 APF OUT VCA IN Fig. 1 BH7273KV Vcc 4.9V 0 300 BUFF OUT 28 0.1 BUFF OUT 300 27 0 BUFF IN 0.1 25 TVF AMP OUT 24 0.1 600 AMP ...
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... Filter for BF amplifier bias of pins 4 20k and 5 3 22k 4 Buffer amplifier input 5k Buffer amplifier output APF amplifier positive input APF amplifier negative input 150 APF amplifier output 8 9 Driver input Driver output 10 BH7273KV Function for all pass filter of pins 3 to10 5 ...
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... TVF1 VCA gain control 5k 400 400 TVF1 VCA positive output 14 — V for VCA of pins and for CC amplifier of pins — GND for VCA of pins and for amplifier of pins TVF1 amplifier positive input 400 5k 5k TVF1 amplifier negative input BH7273KV Function ...
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... GND for amplifier of pins for amplifier of pins and CC — for BF of pins TVF2 amplifier positive input 400 5k 5k TVF2 amplifier negative input TVF2 amplifier output 24 — GND for BF of pins input output output 2 BH7273KV Function 7 ...
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... GND for MIX amplifier of pins MIX amplifier input MIX amplifier input 2 MIX amplifier output 1 — MIX amplifier output 2 — GND for detector, subtractor, and reverse polarity circuits — BH7273KV Function — — ...
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... Bias adjustment 41 15k 4k Bias output 42 1k ATF output — CC reverse polarity circuits 15k 15k F1 detector detector 47k 47k GND for BPF and 25dB amplifier — — BH7273KV Function for detector, subtractor, and for BPF and 25dB amplifier 9 ...
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... F2BPF OUT 2 ADJ 1 ADJ 1.5 58 GCA OUT 1.8 10 Internal circuit — F1 amplifier output F2 amplifier output amplifier input 200 200 amplifier input F1 BPF output F2 BPF output 54 55 35k F2 adjustment 70k 56 30k 35k F1 adjustment 70k 57 30k VCA output 58 BH7273KV Function — ...
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... LPF IN 3.8 64 N.C. — Internal circuit — GND for LPF and VCA — 35k 70k VCA gain adjustment 61 30k 35k 15k VCA gain switching 15k 100k 63 LPF input 5k N.C. pin — Connect to ground to lower impedance BH7273KV Function for LPF and VCA 11 ...
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... 0.1 0.1 2.2k 0 SUBTRACT MIX 47k 47k BH7273KV AMP 47p 1k 33p 0.1 470 300 300 300 Fig. 2 BH7273KV Delay Line 150 150 180 150 Vcc 4.9V 0 0 AMP 23 0.1 22 0.1 21 Vcc 4.9V 20 0.1 19 ...
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... Video ICs • External dimensions (Units: mm) 12.0 0.3 10.0 0 0.125 0.5 0.2 0.1 0.1 VQFP64 0.1 BH7273KV 13 ...