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BA7797 Datasheet(PDF) 2 Page - Rohm |
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BA7797 Datasheet(HTML) 2 Page - Rohm |
2 / 8 page 2 Video ICs BA7797F •Absolute maximum ratings (Ta = 25°C) Parameter Symbol Limits Unit VCC 13 V 550∗ mW Topr °C Tstg °C Pd – 10 ~ + 65 – 55 ~ + 125 Power supply voltage Power dissipation Operating temperature Storage temperature ∗ When mounted on a 50mm × 50mm × 1.6mm glass epoxy board. Reduced by 5.5mW for each increase in Ta of 1 °C over 25°C. •Recommended operating conditions (Ta = 25°C) Parameter Symbol Min. Typ. Max. Unit VCC 7.5 — 12.5 V Power supply voltage •Pin descriptions (VCC = 10V) 1 PB IN 2.0V REC: 120k Ω REC: 11 Ω 2 REC HEAD SW 0.0V REC: OPEN 3 REC OUT 4.7V EF (P-P) 4 REC L 4.7V B (NPN) 5 VCC 10.0V — 6 RIPPLE FILTER 10.0V 10k Ω (VCC) 7 REC / EE CTRL — 8 LINE OUT 4.7V EF (P-P) 9 ALC LEVEL ADJ 4.1V 10 MUTE CTRL — 11 LINE IN 4.7V 120k Ω 12 PB / TU / LINE CTRL — 13 TUNER IN 4.7V 120k Ω 14 ALC FILTER PB: 0.0V 15 PB LINE IN 4.7V 120k Ω 16 PB OUT 2.0V EF (P-P) 17 PB NFB 2.0V B (NPN) 18 GND 0.0V — Pin No. Pin name Function Pin voltage I / O circuit REC: 17 Ω (ON) EF (NPN) ~ 100 Ω PB: Not fixed See input / output circuit See Fig. 4 See input / output circuit See input / output circuit Playback amplifier input / playback head switch High-withstanding voltage recording head switch Recording amplifier output Recording EQ switch VCC Ripple filter REC / EE control Line amplifier output ALC level adjustment Mute control Line input PB / TU / LINE control Tuner input For setting the time constant for the ALC filter (attack and recovery times) Line input for playback Playback amplifier output Playback amplifier feedback GND ∗ EF: emitter follower, P-P: push pull, B: base, and C: collector. All measurements made using the measurement circuit (Fig.1) with VCC = 10V and quiescent circuit conditions. All numerical values are standardized values. |
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