參數(shù)資料
型號(hào)： TDA7468D13TR
廠商： STMICROELECTRONICS
元件分類： 音頻控制
英文描述： 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28
封裝： SO-28
文件頁(yè)數(shù)： 23/23頁(yè)
文件大小： 249K
代理商： TDA7468D13TR
9/23
TDA7468
5
SOFTWARE SPECIFICATION
Interface Protocol
The interface protocol comprises:
A start condition (S)
A chip address byte, containing the TDA7468D address
A subaddress bytes
A sequence of data (N byte + acknowledge)
A stop condition (P)
ACK = Acknowledge
S = Start; P = Stop
A = Address
B = Auto Increment
6
EXAMPLES
6.1 No Incremental Bus
The TDA7468D receives a start condition, the correct chip address, a subaddress with the B = 0 (no in-
cremental bus), N-data (all these data concern the subaddress selected), a stop condition.
6.2 Incremental Bus
The TDA7468D receive a start conditions, the correct chip address, a subaddress with the B = 1 (incre-
mental bus): now it is in a loop condition with an autoincrease of the subaddress whereas SUBADDRESS
from "XXX1000" to "XXX1111" of DATA are ignored.
The DATA 1 concern the subaddress sent, and the DATA 2 concern the subaddress sent plus one in the
loop etc, and at the end it receivers the stop condition.
Table 5. POWER ON RESET CONDITION
MSB
LSB
D7
D6
D5
D4
D3
D2
D1
D0
1
111
1
0
S
1
0
1
0
ACK
DATA
ACK
P
MSB
LSB
MSB
LSB
MSB
LSB
CHIP ADDRESS
D96AU420
X
DATA
SUBADDRESS
DATA 1 to DATA n
X
B
S
1
0
1
0
ACK
DATA
ACK
P
MSB
LSB
MSB
LSB
MSB
LSB
CHIP ADDRESS
D96AU421
X
D3
SUBADDRESS
DATA
X
0
D2 D1 D0
S
1
0
1
0
ACK
DATA
ACK
P
MSB
LSB
MSB
LSB
MSB
LSB
CHIP ADDRESS
D96AU422
X
D3
SUBADDRESS
DATA 1 to DATA n
X
1
D2 D1 D0
相關(guān)PDF資料
PDF描述
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