TDA7418 STMicroelectronics, TDA7418 Datasheet - Page 20

• Manufacturer Part Number: TDA7418
• Description: IC PROCESSOR CAR AUD 3BAND 20SOI
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of TDA7418

• Applications: Radio
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

I
5
5.1
5.1.1
5.1.2
5.1.3
20/29
2
S
C bus specification
S
1
1
0
0
0 0 1
I
Interface protocol
The interface protocol comprises:
Receive mode
S =
R/W = "0" -> Receive Mode (Chip can be programmed by μP)
ACK = Acknowledge
P =
TS = Testing mode
AZ = Auto zero remain
AI =
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 2.5V. After that the
following data is written automatically into the registers of all subaddresses:
Table 5.
2
0
C bus specification
MSB
–
–
–
–
–
–
0
1
Start
"1" -> Transmission Mode (Data could be received by μP)
Stop
Auto increment
1
0
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
0
Registers of all subaddresses
0
R/W
1
0
R/W
ACK
1
ACK
TS
AZ
X
1
AI
X
A4
X
A3
1
X
A2
A1
X
1
A0
X
ACK
X
1
DATA
SM
ACK
TDA7418
ACK
LSB
0
P
P