E-TDA7437N STMicroelectronics, E-TDA7437N Datasheet - Page 15

• Manufacturer Part Number: E-TDA7437N
• Description: Multimedia Misc CNTRL audio PROCESSR
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of E-TDA7437N

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: TQFP-44
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDA7437N
4
4.1
4.2
4.3
Software specification
Interface protocol
The interface protocol comprises of:
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ACK = Acknowledge; S = Start; P = Stop; I = Auto increment; X = Not used
Max clock speed 500kbits/s
ADDRpin open A = 0
ADDRpin close to Vs A = 1
Auto increment
If bit I in the subaddress byte is set to "1", the autoincrement of the subaddress is enabled.
Subaddress (receive mode)
Table 5.
S 1
MSB
MSB
X
A start condition (s)
A chip address byte, (the LSB bit determines read (=1)/write (=0) transmission)
A subaddress byte.
A sequence of data (N-bytes + acknowledge)
A stop condition (P)
0
CHIP ADDRESS
0
0
X
Subaddress (receive mode)
1
0
A
X
LSB
R/W
ACK
I
X X X
MSB
A3
0
0
0
0
0
0
0
0
1
1
SUBADDRESS
I
A3
A2
0
0
0
0
1
1
1
1
0
0
A2
A1
A1
LSB
0
0
1
1
0
0
1
1
0
0
A0
ACK
LSB
A0
0
1
0
1
0
1
0
1
0
1
MSB
DATA 1 to DATA n
Software specification
Input selector
Loudness
Volume
Bass, Treble
Speaker attenuator LF
Speaker attenuator LR
Speaker attenuator RF
Speaker Attenuator RR
Input gain middle
Mute
DATA
FUNCTION
LSB
ACK
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P