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TDA7407 数据表(PDF) 5 Page - STMicroelectronics |
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TDA7407 数据表(HTML) 5 Page - STMicroelectronics |
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5 / 30 page ![]() ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit ET Tracking Error 2dB VDC DC Steps Adjacent Attenuation Steps 0.1 3 mV From 0dB to GMIN 0.5 5 mV SOFT MUTE/AFS AMUTE Mute Attenuation 80 100 dB TD Delay Time T1 0.48 ms T2 0.96 ms T3 40.4 ms T4 324 ms VTH low Low Threshold for SM-/AFS- Pin 1 1V VTH high High Threshold for SM-/AFS-Pin 2.5 V RPD Internal Pull-up Resistor 45 K Ω BASS CONTROL CRANGE Control Range ±13 ±15 ±17 dB ASTEP Step Resolution 0.5 1 1.5 dB fC Center Frequency fC1 54 60 66 Hz fC2 63 70 77 Hz fC3 72 80 88 Hz fC4 90 100 (150) (2) 110 Hz QBASS Quality Factor Q1 0.9 1 1.1 Q2 1.11.251.4 Q3 1.3 1.5 1.7 Q4 1.8 2 2.2 DCGAIN Bass-Dc-Gain DC = off -1 0 1 dB DC = on 3.5 4.4 5.5 dB MID CONTROL CRANGE Control Range ±13 ±15 ±17 dB ASTEP Step Resolution 0.5 1 1.5 dB fC Center Frequency fC1 450 500 550 Hz fC2 0.9 1 1.1 kHz fC3 1.35 1.5 1.65 kHz fC4 1.8 2 2.2 kHz QMID Quality Factor Q1 0.9 1 1.1 Q2 1.8 2 2.2 TREBLE CONTROL CRANGE Control Range ±13 ±15 ±17 dB ASTEP Step Resolution 0.5 1 1.5 dB fC Center Frequency fC1 8 10 12 KHz fC2 10 12.5 15 KHz fC3 12 15 18 KHz fC4 14 17.5 21 KHz 1) The SM pin is active low (Mute = 0) 2) See note in Programming Part TDA7407 5/30 |
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