bh7779k ROHM Co. Ltd., bh7779k Datasheet
bh7779k
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bh7779k Summary of contents
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... Video ICs VCR audio signal processing system BH7779K The BH7779K is an audio signal processing system IC that includes a peak-noise reduction processor modu- lator / demodulator circuit, an input / output switcher, an automatic FM detector circuit band-pass filter, a nor- mal-audio circuit and a regulator circuit. • ...
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... IN Other than the pins above: 6. 800 – – 125 Range + 7 7 and UNREG V CC Unit Unit V V pins in the EE BH7779K ...
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... EQ ALC PB AMP SW AII LINE AMP OUTPUT SWITCH LINE AMP DATA DECODER BH7779K EMPH R PNR VCO f0 adj R 29 GNMR MODEM 28 FM REC OUT AUDIO HEAD 27 SWICTH PULSE IN Hi-Fi DET 26 RHS CTRL 25 FM ALC D ...
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... input coupling capacitor (GND GND (GNB) FM BPF GND circuit; EF: emitter follower, P-P: push pull, B: base, and C: collector. All numerical values are standardized values. 4 Function Typ. P BH7779K Pin voltage circuit 0.0V 32.7k 0.0V 93.5k — 3k (more 2.5V) — — — B (PNP) — B (PNP) EE: 0 ...
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... CC Input / output switch GND. V regulator error output regulator. EE LINE 1 input (L and R). LINE 2 input (L and R reference voltage. With power on detect CC and precharge function. BH7779K Pin voltage circuit 5.0V — 1.9V EF (NPN) ~ 200 0.0V EF (NPN) ~ 2.5k — C (NPN) — B (PNP) EE: 3.3V EF (NPN) ~ 200 PB: 3 ...
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... LINE1 LINE2 (61, 60, 63, 62, 5, 4pin (60, 63, 62, 5, 4pin GND MIX OUT (52pin (53pin) 26k 30k V EE GND (21pin 3. GND BH7779K – 2.0V 63.5k 2.0V 30k V 200 52 200 5k 47k V GND V CC 20p 50k 12.5k 100k V EE GND V CC ...
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... Equivalent circuits for the control and input / output circuits - ( (41pin) 41 49.5k 40k NFB (44pin) ,NA HEAD IN (46pin) 46 100k NA PB OUT (42pin GND NA REC OUT (48pin) ,NA REC NFB (50pin GND BH7779K V CC 200 42 56 200 200 49k 50 48 50k 200 V EE GND 7 ...
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... RHS CTRL (26pin DATA (8pin) , CLOCK (9pin) (8pin) 10k ENVELOPE / DET OUT (10pin GND MUTE CTRL (6pin 51k 16k V EE GND BH7779K V CC 200 10 50k V EE GND 2.5V 200 10k 3k 10k 50k V EE GND ...
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... PB V 4.69 5.04 5. – 5.37 – 5.02 – 4.67 EE Unit Conditions EE mode, no input, standard carrier mA adjustment resistor. PB mode, no input, FNORM, BPE, standard mA carrier adjustment resistor. EE mode, no input, standard carrier mA adjustment resistor. PB mode, no input, FNORM, BPE, standard mA carrier adjustment resistor. V — — V BH7779K 9 ...
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... ALCN – 11.4 – 10.2 – 9.0 dBV — 0.067 0.20 % RECN 7.0 9.3 — dBV — – 99.0 – 70.0 dBV RECN BH7779K Conditions V = – 9.7dBV – 9.7dBV – 9.7dBV , IN 1 THD = 1% , Connect the pertinent input to GND 0.0dBV for the non-relevant tarminal relevant terminal shorted to GND. ...
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... P-P — – 53.0 – 40.0 dB — – 48.0 – 40.0 dB — – 52.0 – 40.0 dB – 55.0 – 42.0 — dB – 15.7 – 13.7 – 11.7 dB BH7779K Conditions V = – 70dBV – 70dBV – 70dBV IN OUTPUT OUT SP MODE SP MODE EP MODE — — Input V = – 9.7dBV – 59.7dBV output IN level difference ...
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... ATT NL NLC NLC NLC dB – 9.8 – 5.3 – 2.3 ATT ATT ATT NL NLC NLC NLC dB – 8.1 – 5.0 – 2.5 ATT NL NLC — — dB BH7779K Conditions DEV = 50.0kHz 1kHz L DEV = 50.0kHz 1kHz R DEV = 50.0kHz 10kHz L DEV = 50.0kHz 10kHz R 1 DEV = 50.0kHz 1kHz DEV = 50.0kHz 1kHz 10kHz, AUDIO H ...
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... 0.0 — 1.0 V 3.9 — BH7779K Conditions 1.30MHz + 1.70MHz When FM ALC is ON 1.55MHz + 1.30MHz 1.85MHz + 1.30MHz 1.30MHz + 1.70MHz 1.40MHz + 1.80MHz 1.40MHz + 1.80MHz 1.40MHz + 1.80MHz 1.40MHz + 1.80MHz Input level to give DO due to attenuation (1.3MHz, 1.7MHz, 1:1 MIX) time from 660mV input to ENVE OUT P-P rise ...
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... PNR 10k 6.8k 29 MODEM 28 AMSWP IN 27 Hi-Fi 10k DET 26 A 0.022 25 D.O. 24 COM. 20k 15k FMBPF 23 22 ENVE MODEM 21 LOPE 20 10k 10k PNR 18k 0. 1.1k 10 10k 0.022 V EE 4.7k 4.7 V BH7779K FM REC OUT 0.01 10k 100 ...
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... PNR 31 18k MODEM 28 27 Hi-Fi DET 26 0.022 25 D.O. 24 COM. FMBPF 23 22 ENVE MODEM 21 LOPE PNR 18k 17 5.6k 0. 1.1k 10 10k 0.022 4.7 ENVELOPE / Hi-Fi DET OUT CLOCK DATA BH7779K CTRL FM REC OUT AUDIO HEAD SWITCH PULSE ...
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... Video ICs • Electrical characteristic curve – 5 Lch Rch – 10 – 15 – 20 – 25 – 30 – 35 – 40 – 45 – 50 – 55 0.75 0.90 1.05 1.20 1.35 1.50 1.65 1.80 1.95 2.10 (MHz) FREQUENCY: f Fig BPF frequency characteristics (NTSC) • External dimensions (Units: mm) 16.4 0.3 14.0 0 0.8 0.35 0.1 QFP-A64 16 2.25 0.15 0.1 0.15 BH7779K ...