TDA7467D$ STMicroelectronics, TDA7467D$ Datasheet - Page 6

• Manufacturer Part Number: TDA7467D$
• Description: IC MATRIX AUDIO SRS EFF 28-SOIC
• Manufacturer: STMicroelectronics
• Series: SRSr
• Type: SRS Audio Matrixr

Specifications of TDA7467D$

• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -

TDA7467
SOFTWARE SPECIFICATION
Interface Protocol
The interface protocol comprises:
ACK = Acknowledge
S = Start; P = Stop
A = Address
B = Auto Increment
EXAMPLES
No Incremental Bus
The TDA7467 receives a start condition, the correct chip address, a subaddress with the MSB = 0 (no
incremental bus), N-data (all these data concern the subaddress selected), a stop condition.
Incremental Bus
The TDA7467 receive a start conditions, the correct chip address, a subaddress with the MSB = 1 (incre-
mental bus): now it is in a loop condition with an autoincrease of the subaddress whereas SUBADDRESS
from "1XXXX1XX" to "1XXX111" of DATA are ignored.
The DATA 1 concern the subaddress sent, and the DATA 2 concerns the subaddress sent plus one sent
in the loop etc, and at the end it receivers the stop condition.
6/11
S
S
S
A start condition (S)
A chip address byte
A subaddress bytes
A sequence of data (N byte + acknowledge)
A stop condition (P)
MSB
MSB
MSB
1
1
1
0
0
0
D96AU420mod
D96AU421mod
D96AU422mod
CHIP ADDRESS
CHIP ADDRESS
CHIP ADDRESS
0
0
0
0
0
0
0
0
0
0
0
0
A
A
A
LSB
LSB
LSB
0
0
0
ACK
ACK
ACK
MSB
MSB
MSB
B
0
1
X
X
SUBADDRESS
SUBADDRESS
SUBADDRESS
X
X
DATA
X
X
X
X
X D1 D0
X D1 D0
LSB
LSB
LSB
ACK
ACK
ACK
MSB
MSB
MSB
DATA 1 to DATA n
DATA 1 to DATA n
DATA
DATA
DATA
DATA
LSB
LSB
LSB
ACK
ACK
ACK
P
P
P