TDA7417 STMicroelectronics, TDA7417 Datasheet - Page 23

• Manufacturer Part Number: TDA7417
• Description: IC PROCESSOR CAR SIGNAL 32-TQFP
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of TDA7417

• Applications: Radio
• Mounting Type: Surface Mount
• Package / Case: 32-TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDA7417
5
5.1
5.1.1
5.1.2
5.1.3
S
S
1
1
0
0
0 0 1
I
Interface Protocol
The interface protocol comprises:
●
●
●
●
●
●
●
Receive Mode
S = Start
R/W = "0" -> Receive Mode (Chip can be programmed by P)
ACK = Acknowledge
P = Stop
TS = Testing mode
AZ = Auto zero remain
AI = Auto increment
Transmission Mode
SM = Soft mute activated for main channel
X = Not Used
The transmitted data is automatic updated after each ACK. Transmission can be repeated
without new chip address.
Reset Condition
A Power-On-Reset is invoked if the Supply-Voltage is below than 3.5V. After that the
following data is written automatically into the registers of all subaddresses:
Table 6.
2
0
C Bus specification
MSB
a start condition (S)
a chip address byte (the LSB determines read/write transmission)
a subaddress byte
a sequence of data (N-bytes + acknowledge)
a stop condition (P)
the max. clock speed is 500kbits/s
3.3V logic compatible
0
1
"1" -> Transmission Mode (Data could be received by P)
1
0
0
0
Registers of all subaddresses
1
R/W
0
R/W
ACK
1
ACK
TS
AZ
X
1
AI
X
A4
X
A3
1
X
A2
A1
X
1
A0
X
ACK
I
2
X
C Bus specification
1
DATA
SM
ACK
ACK
LSB
0
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P
P