E-TDA7416 STMicroelectronics, E-TDA7416 Datasheet - Page 17

• Manufacturer Part Number: E-TDA7416
• Description: IC SIGNAL PROCESSOR 44-TQFP
• Manufacturer: STMicroelectronics
• Type: Car Signal Processorr

Specifications of E-TDA7416

• Applications: Radio
• Mounting Type: Surface Mount
• Package / Case: 44-TQFP
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Package Type: TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2
2.1 Interface Protocol
The interface protocol comprises:
-a start condition (S)
-a chip address byte (the LSB bit determines read / write transmission)
-a subaddress byte
-a sequence of data (N-bytes + acknowledge)
-a stop condition (P)
S = Start
R/W = “0” -> Receive-Mode (Chip could be programmed by µP)
ACK = Acknowledge
P = Stop
MAX CLOCK SPEED 500kbits/s
2.1.1 Auto increment
If bit I in the subaddress byte is set to “1”, the auto increment of the subaddress is enabled.
2.1.2 TRANSMITTED DATA (send mode)
SM = Soft mute activated
X = Not Used
The transmitted data is automatically updated after each ACK.
Transmission can be repeated without new chip address.
2.1.3 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:
The programming after POR is marked bold-face / underlined in the programming tables.
With this programming all the outputs are muted to V
S 1 0 0 0 1 1 0 R/W ACK
MSB
MSB
X
1
MSB
I
2
C BUS INTERFACE
“1” -> Transmission-Mode (Data could be received by µP)
CHIP ADDRESS
X
1
X
1
X
1
LSB
X
1
X
1
T AZ
MSB
X
1
SUBADDRESS
I
LSB
LSB
SM
A
0
A
REF
A
(V
OUT
A
LSB
= V
A ACK
DD
/2).
MSB
DATA 1...DATA n
DATA
LSB
TDA7416
ACK
17/27
P