TDA7309 STMicroelectronics, TDA7309 Datasheet - Page 8

• Manufacturer Part Number: TDA7309
• Description: IC PROCESSOR STER/AUDIO 20-PDIP
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of TDA7309

• Mounting Type: Through Hole
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -

TDA7309
4
4.1 Interface Protocol
The interface protocol comprises:
■
■
■
■
Figure 19.
ACK = Acknowledge
S = Start
P = Stop
MAX CLOCK SPEED 400kbits/s
Table 7. Chip address
Table 8. Function Codes
Table 9. Channel Abilitation Codec
8/14
VOLUME
MUTE/LOUD
INPUTS
CHANNEL
MSB
A start condition (s)
A chip address byte, containing the TDA7309 address (the 8th bit of the byte must be 0).
The TDA7309 must always acknowledge at the end of each transmitted byte.
A sequence of data (N-bytes + acknowledge)
A stop condition (P)
0
0
MSB
SOFTWARE SPECIFICATION
1
0
0
F6
1
1
1
MSB
F5
0
0
1
1
1
1
1
F4
X
X
X
X
F6
X
0
0
1
0
0
F3
X
X
X
X
F5
X
0
1
0
0
0
F2
X
X
X
X
F4
X
X
X
X
1
0
F1
0
0
1
1
LSB
0
0
F3
X
X
X
X
pin address open
pin address close to ground
LSB
0
1
0
1
F2
X
X
X
X
channel
RIGHT
LEFT
BOTH
BOTH
F1
X
X
X
X
FUNCTION
LSB
X
X
X
X