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BA7781 数据表(PDF) 3 Page - Rohm |
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BA7781 数据表(HTML) 3 Page - Rohm |
3 / 7 page 3 Video ICs BA7781K 1 MODE 1 — 25k Ω 2 PRE OUT R 1.65 3 INV IN R 1.65 100k Ω 4 INV OUT R 1.65 5 MTX IN R 1.65 B 6 MTX OUT R 1.65 7 HPF IN R 1.65 100k Ω 8 OUT R 1.65 9 MIC MONO — C 10 MIX OUT 1.65 11 LPF INV IN — B 12 LPF INV OUT — 13 VCC 3.3 — 14 BIAS 1.65 15 DET IN 1.65 2k Ω 16 DET OUT — 22k Ω 17 OUT L 1.65 18 HPF IN L 1.65 100k Ω 19 MTX OUT L 1.65 20 MTX IN L 1.65 B 21 INV OUT L 1.65 22 INV IN L 1.65 100k Ω 23 PRE OUT L 1.65 24 MODE 24 — 25k Ω 25 EXT IN L 1.65 75k Ω 26 BG 1.25 10k Ω 27 INT IN L 1.65 75k Ω 28 GND —— 29 VREG 2.5 C 30 INT IN R 1.65 75k Ω 31 RIPL 1.65 50k Ω 32 EXT IN R 1.65 75k Ω EF (P - P) EF (P - P) EF (P - P) C (P - P) EF (P - P) EF (P - P) EF (P - P) C (P - P) EF (P - P) EF (P - P) EF (P - P) Pin name Function Pin No. Voltage (V) ∗ EF: emitter follower, P-P: push pull, B: base, and C: collector. Circuit Mode control 1 input Preamplifier output Inverter input Inverter output Matrix amplifier input Matrix amplifier output High-pass filter input Signal output External microphone monaural decision signal output Mix Output Low-pass filter block inverter input Low-pass filter block inverter output VCC Bias voltage Detector circuit input Detector circuit output Signal output High-pass filter input Matrix amplifier output Matrix amplifier input Inverter output Inverter input Preamplifier output Mode control 24 input External microphone input For regulator ripple filter capacitor Internal microphone input GND Regulator output Internal microphone input For bias ripple filter capacitor External microphone input All numerical values are standardized values. •Pin descriptions |
类似零件编号 - BA7781 |
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类似说明 - BA7781 |
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