TDA7318 STMicroelectronics, TDA7318 Datasheet - Page 9

• Manufacturer Part Number: TDA7318
• Description: IC PROCESSOR STEREO DGTL 28-DIP
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of TDA7318

• Applications: Hi-Fi Systems
• Mounting Type: Through Hole
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SOFTWARE SPECIFICATION
Interface Protocol
The interface protocol comprises:
MAX CLOCK SPEED 100kbits/s
SOFTWARE SPECIFICATION
Chip address
DATA BYTES
Ax = 1.25dB steps; Bx = 10dB steps; Cx = 2dB steps; Gx = 6.25dB steps
ACK = Acknowledge
S = Start
P = Stop
MSB
S
A start condition (s)
A chip address byte, containing the TDA7318
1
MSB
0
1
1
1
1
0
0
0
1
MSB
0
TDA7318 ADDRESS
0
0
first byte
0
1
1
0
0
1
1
1
0
0
1
0
0
B2
0
1
0
1
0
1
1
0
1
0
LSB
AC K
0
G1
B1
B1
B1
B1
B1
0
1
MSB
0
G0
C3
C3
B0
B0
B0
B0
B0
LSB
0
DATA
Data Transferred (N-bytes + Acknowledge)
A2
A2
A2
A2
A2
S2
C2
C2
address (the 8th bit of the byte must be 0). The
TDA7318 must always acknowledge at the end
of each transmitted byte.
A sequence of data (N-bytes + acknowledge)
A stop condition (P)
LSB
A1
A1
A1
A1
A1
S1
C1
C1
A C K
MSB
LSB
C0
C0
A0
A0
A0
A0
A0
S0
DATA
Volume control
Speaker ATT LR
Speaker ATT RR
Speaker ATT LF
Speaker ATT RF
Audio switch
Bass control
Treble control
FUNCTION
TDA7318
LSB
A C K
9/14
P