TDA7429S STMicroelectronics, TDA7429S Datasheet - Page 11

• Manufacturer Part Number: TDA7429S
• Description: IC PROCESSOR AUDIO DGTL 42-SDIP
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of TDA7429S

• Applications: TV, HI-FI Systems
• Mounting Type: Through Hole
• Package / Case: 42-SDIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5
5.1 No Incremental Bus
The TDA7429 receives a start condition, the correct chip address, a subaddress with the MSB = 0 (no incre-
mental bus), N-datas (all these datas concern the subaddress selected), a stop condition.
Figure 12.
5.2 Incremental Bus
The TDA7429 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
Address = 80(HEX)
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
S
S
D7
B
B
B
B
B
B
B
B
B
B
MSB
MSB
EXAMPLES
DATA BYTES
1
1
0
0
CHIP ADDRESS
CHIP ADDRESS
D95AU306
D95AU307
D6
X
X
X
X
X
X
X
X
X
X
0
0
0
0
0
0
D5
X
X
X
X
X
X
X
X
X
X
0
0
A
A
LSB
LSB
D4
X
X
X
X
X
X
X
X
X
X
0
0
ACK
ACK
D3
0
0
0
0
0
0
0
0
1
1
MSB
MSB
0
1
X
X
D2
SUBADDRESS
SUBADDRESS
0
0
0
0
1
1
1
1
0
0
X
X
X
X
D3
D3
D1
0
0
1
1
0
0
1
1
0
0
D2 D1 D0
D2 D1 D0
LSB
D0
LSB
LSB
0
1
0
1
0
1
0
1
0
1
ACK
ACK
INPUT ATTENUATION
SURROUND & OUT & EFFECT CONTROL
PHASE RESISTOR
BASS & NATURAL BASE
MIDDLE & TREBLE
SPEAKER ATTENUATION "L"
SPEAKER ATTENUATION "R"
AUX ATTENUATION "L"
AUX ATTENUATION"R"
INPUT MULTIPLEXER, & AUX OUT
MSB
MSB
DATA 1 to DATA n
SUBADDRESS
DATA
DATA
DATA
LSB
LSB
TDA7429
ACK
ACK
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P
P