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TDA7430 데이터시트(PDF) 11 Page - STMicroelectronics |
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11 / 23 page 11/23 TDA7430 - TDA7431 5 EXAMPLES 5.1 No Incremental Bus The TDA7430/TDA7431 receives a start condition, the correct chip address, a subaddress with the MSB = 0 (no incremental bus), N-datas (all these datas concern the subaddress selected), a stop condition. Figure 12. 5.2 Incremental Bus The TDA7430/TDA7431 receives a start condition, the correct chip address, a subaddress with the MSB = 1 (incremental bus): now it is in a loop condition with an autoincrease of the subaddress whereas SUBADDRESS from "1XXX1010" to "1XXX1111" of DATA are ignored.The DATA 1 concern thesubaddress sent, and the DATA 2 concern the subaddress sent plus one in the loop etc, and at the end it receivers the stop condition. Figure 13. 6 DATA BYTES Address = 80(HEX) ADDR open; 82 (HEX): need to connect supply 6.1 Function Selection Table 6. The first byte (Subaddress) B = 1 incremental bus; active B = 0 no incremental bus; X = indifferent 0,1 MSB LSB SUBADDRESS D7 D6 D5 D4 D3 D2 D1 D0 B X X X 0 0 0 0 INPUT ATTENUATION B X X X 0 0 0 1 SURROUND & OUT & EFFECT CONTROL B X X X 0 0 1 0 PHASE RESISTOR B X X X 0 0 1 1 BASS & NATURAL BASE BX XX 0 1 0 0 MIDDLE & TREBLE B X X X 0 1 0 1 SPEAKER ATTENUATION "L" B X X X 0 1 1 0 SPEAKER ATTENUATION "R" BX XX 0 1 1 1 AUX ATTENUATION "L" BX XX 1 0 0 0 AUX ATTENUATION"R" B X X X 1 0 0 1 INPUT MULTIPLEXER, & AUX OUT S 1 0 0 0 0 0 A 0 ACK ACK DATA ACK P MSB LSB MSB LSB MSB LSB CHIP ADDRESS D95AU306 0 D3 SUBADDRESS DATA X X X D2 D1 D0 S 1 0 0 0 0 0 A 0 ACK ACK DATA ACK P MSB LSB MSB LSB MSB LSB CHIP ADDRESS D95AU307 1 D3 SUBADDRESS DATA 1 to DATA n X X X D2 D1 D0 |
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