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TDA7343 Datasheet(PDF) 7 Page - STMicroelectronics |
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TDA7343 Datasheet(HTML) 7 Page - STMicroelectronics |
7 / 14 page MSB LSB FUNCTION X X X I A3A2 A1A0 0 0 0 0 Input Selector 0 0 0 1 Loudness 0 0 1 0 Volume 0 0 1 1 Bass, Treble 0 1 0 0 Speaker Attenuator LF 0 1 0 1 Speaker Attenuator LR 0 1 1 0 Speaker Attenuator RF 0 1 1 1 Speaker Attenuator RR 1 0 0 0 Mute AUTO INCREMENT If bit I in the subaddress byte is set to ”1”, the autoincrement of the subaddress is enabled SUBADDRESS (receive mode) CHIP ADDRESS SUBADDRESS DATA 1 to DATA n MSB LSB MSB LSB MSB LSB S 1000100 R/W ACK X X X I A3 A2 A1 A0 ACK DATA ACK P ACK = Acknowledge S = Start P = Stop I = Auto Increment X = Not used MAX CLOCK SPEED 500kbits/s TRANSMITTED DATA Send Mode MSB LSB X X X X X SM ZM X ZM = Zero crossing muted (HIGH active) SM = Soft mute activated (HIGH active) X = Not used The transmitted data is automatically updated after each ACK. Transmission can be repeated without new chip address. SOFTWARE SPECIFICATION Interface Protocol The interface protocol comprises: A start condition (s) A chip address byte,(the LSB bit determines read/write transmission) A subaddress byte. A sequence of data (N-bytes + acknowledge) A stop condition (P) TDA7343 7/14 |
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