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TDA7342 数据表(PDF) 10 Page - STMicroelectronics |
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TDA7342 数据表(HTML) 10 Page - STMicroelectronics |
10 / 14 page MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 1 Soft Mute On 0 1 Soft Mute with fast slope (I = IMAX) 1 1 Soft Mute with slow slope (I = IMIN) 1 Direct Mute 0 1 Zero Crossing Mute On 00 Zero Crossing Mute Off (delayed until next zero crossing) 1 Zero Crossing Mute and Pause Detector Reset 0 0 0 160mV ZC Window Threshold (WIN = 00) 0 1 0 80mV ZC Window Threshold (WIN = 01) 1 0 0 40mV ZC Window Threshold (WIN = 10) 1 1 0 20mV ZC Window Threshold (WIN = 11) 0 Nonsymmetrical Bass Cut (note 4) 1 Symmetrical Bass Cut An additional direct mute function is included in the Speaker Attenuators. Note 4: Bass cut for very low frequencies; should not be used at +16 and +18dB bass boost (DC gain) Mute MSB LSB SPEAKER ATTENUATOR LF, LR, RF, RR D7 D6 D5 D4 D3 D2 D1 D0 1.25dB step XXX 0 0 0 0dB X X X 0 0 1 -1.25dB X X X 0 1 0 -2.5dB X X X 0 1 1 -3.75dB XXX 1 0 0 -5dB X X X 1 0 1 -6.25dB X X X 1 1 0 -7.5dB X X X 1 1 1 -8.75dB 10dB step XXX 0 0 0dB X X X 0 1 -10dB X X X 1 0 -20dB X X X 1 1 -30dB X X X 1 1 1 1 Speaker Mute For example an attenuationof 25dB on a selected output is given by: X X X1 0 1 0 0 Speaker Attenuators TDA7342 10/14 |
类似零件编号 - TDA7342 |
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类似说明 - TDA7342 |
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