bh7775k ROHM Co. Ltd., bh7775k Datasheet
bh7775k
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bh7775k Summary of contents
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... VCR audio signal processing system BH7775K The BH7775K is an audio signal processing system IC that includes a peak-noise reduction (PNR) processor modulator / demodulator circuit, an input / output switcher, an automatic FM detector circuit band-pass filter, a normal-audio circuit, a regulator circuit, and automatic adjusting circuits (VCO and BPF). ...
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... IN Pin other than above · · · · 6.0 IN 800 – – 125 Range + 7 7.0 ~ and UNREG V pins in the measurement circuit BH7775K Unit Unit V V ...
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... EQ ALC PB AMP SW ATT LINE AMP OUTPUT SWITCH LINE AMP DATA DECODER INPUT SWITCH BH7775K PNR 31 VCO f0 ADJ R 30 DAC BF OUT R 29 GNMR MODEM 28 FM REC OUT 27 AUDIO HEAD SW Hi-Fi PULSE IN DET 26 RHS CTRL 25 FM ALC D ...
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... EE: recording FM output. Sine wave output REC OUT PB: BPF output monitor terminal. Note circuit; EF: emitter follower, P-P: push pull, B: base, and C: collector. All numerical values are standardized values. 4 Function Pin voltage Typ. P BH7775K circuit 0.0V 69.8k 0.0V 47.0k 0.0V — — B (PNP) — B (PNP) EE: 0.8V EE: 50k PB: 1.0V PB, ADJ: EF (NPN) 0 ...
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... circuit; EF: emitter follower, P-P: push pull, B: base, and C: collector. All numerical values are standardized values. Function regulator. regulator error output. regulator error output. regulator / 2 reference voltage. With power on detect BH7775K Pin voltage circuit 0.0V 800 0.0V EF (NPN) ~ 500 0.0V 105.2k ...
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... LINE1 LINE2 (61, 60, 63, 62pin) Vcc 61 [60, 63, 62pin GND LINE OUT (54, 53pin) Vcc V EE GND FM REC OUT (28pin) Vcc V EE GND BH7775K Vcc – 2.0V 60.2k 2.0V 30k V EE GND Vcc 50 [53pin] 25k 330 54 26k 10.13k 50 30k V EE GND Vcc ...
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... REC OUT (48pin), NA REC NFB (50pin) 200 SP: ON 10k 39k 50 50k 200 (41pin) Vcc 75. GND NA PB NFB (44pin), NA HEAD IN (46pin) Vcc GND BH7775K Vcc 30k GND Vcc 46 44 100k V EE GND 7 ...
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... RHS CTRL (26pin) 26 Vcc GND DATA (7pin), CLOCK (8pin) [7pin] 10k ENVELOPE / Hi-Fi DET OUT (9 pin) EE MUTE CTRL (22pin) 51k 16k FSC IN (10pin) Vcc BH7775K Vcc 200 9 50k V EE GND 22 Vcc 2.5V 200 10k 3k 10k 50k V EE GND Vcc 2k 50k 200k V ...
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... V – 5.37 – 5.02 – 4.67 V BH7775K = – 16.0dB IN = – 6.6dB IN = – 11.0dB IN = – 1.0dB IN Conditions EE mode, no input, after carrier frequency adjustment. PB mode, no input, FNORM, BPF, after carrier frequency adjustment. EE mode, no input, after carrier frequency adjustment. PB mode, no input, FNORM, BPF, after carrier frequency adjustment ...
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... BH7775K Conditions Input condition 1 Input condition 1 1 Input condition 1 THD = 1 Relevant input shorted to GND, Relevant input: shorted to GND 2 Non-relevant input: Input condition2, 2 Input condition 2 (LINE OUT MIX ON / OFF Mode switching operating point voltage difference. VIN = – ...
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... BH7775K Conditions V = – 70dBV – 70dBV – 70dBV IN OUTPUT OUT SP MODE EP MODE Resistor connected between pin 49 and GND. SP MODE EP MODE Input condition 1 TU input V = – ...
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... INPUT IN, OUTPUT: LINE OUT – 1.2 0.0 + 1.2 dB – 1.2 0 1.30MHz, 1.70MHz 1: 1 MIX, after BPF center frequency adjustment. Inpu P-P (frequency deviation given above line out level difference. BH7775K Conditions No input, V stable, after automatic adjustment 3.579545MHz 150 ~ 500mV IN P-P ...
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... PRC ATT PR PRC — — – 4.6 ATT PR PRC — — – 5.3 ATT PR PRC — — – 30.0 BH7775K Conditions 1.505MHz 200mV IN P 1.605MHz 200mV IN P-P dB 1.30MHz + 1.70MHz 1.15MHz + 1.70MHz dB dB 1.45MHz + 1.70MHz 1.30MHz + 1.70MHz dB dB 1.30MHz + 1.70MHz 1.55MHz + 1.30MHz ...
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... CC 0.0 — 0.5 V 2.5 — 0.0 — 1.0 V 3.9 — BH7775K Conditions Input level to give DO due to attenuation (1.3MHz, 1.7MHz MIX) time from 660mV input to ENVE OUT P-P rise. Audio head pulse in 30Hz, 5V rectangular waveform. P-P No signal, SP MODE V = 0dB, SP MODE 10dB, SP MODE – 4dB, EP MODE ...
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... Video ICs • Measurement circuit 22k Fig.1 BH7775K 1k FSCIN CLOCK DATA 15 ...
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... Video ICs • Application example BA7755 Fig.2 BH7775K ...
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... Video ICs • Electrical characteristic curve – 5 Lchannel Rchannel – 10 – 15 – 20 – 25 – 30 – 35 – 40 – 45 – 50 – 55 0.75 0.90 1.05 1.20 1.35 1.5 1.65 1.80 1.95 2.10 2.25 MHz) FREQUENCY Fig BPF frequency characteristics (NTSC) • External dimensions (Units: mm) 16.4 0.3 14.0 0 0.8 0.35 0.1 QFP-A64 0.15 0.1 0.15 BH7775K 17 ...