參數(shù)資料
型號: TDA7309D013TR
廠商: STMICROELECTRONICS
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO20
封裝: SO-20
文件頁數(shù): 13/14頁
文件大?。?/td> 225K
代理商: TDA7309D013TR
TDA7309
8/14
4
SOFTWARE SPECIFICATION
4.1 Interface Protocol
The interface protocol comprises:
A start condition (s)
A chip address byte, containing the TDA7309 address (the 8th bit of the byte must be 0).
The TDA7309 must always acknowledge at the end of each transmitted byte.
A sequence of data (N-bytes + acknowledge)
A stop condition (P)
Figure 19.
ACK = Acknowledge
S = Start
P = Stop
MAX CLOCK SPEED 400kbits/s
Table 7. Chip address
Table 8. Function Codes
Table 9. Channel Abilitation Codec
MSB
LSB
001
1001
0
pin address open
001
1000
0
pin address close to ground
MSB
F6F5
F4
F3F2
F1
LSB
VOLUME
0
XXX
X
MUTE/LOUD
1
0
X
INPUTS
1
0
1
X
CHANNEL
1
0
X
MSB
F6
F5
F4
F3
F2
F1
LSB
FUNCTION
1
0
channel
XX
X0
0
RIGHT
XX
X0
1
LEFT
XX
X1
0
BOTH
XX
X1
1
BOTH
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