TDA7404 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA7404' PDF : 35 Pages View PDF
TDA7404
I2C bus interface
Table 19. Others
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
Function
AC coupling
X
0 Internal pass
0
1 Coupling between Mixing Stage and Volume
1
1
Coupling between Bass filter and Speaker
attenuator
1
1
00
01
10
11
Must be "1" for make up
Must be "1" for make up
Soft Step Time
0.68ms
1.26ms
2.52ms
5.04ms
1
0
1
Must be "1" for AutoZero
Internal Beep
Off
ON
Table 20. Testing
MSB
LSB
D7
D6
D5
D4
D3
D2
D1
D0
Function
X
X
X
X
X
X
Main-Testmode
0 off
1 on
X
X
X
X
X
X
Test-Multiplexer
0
internal 200kHz Clock
1
internal Bandgap Voltage
X
X
X
0
X
X
X
1
Clock
external
internal
1
1
must be "1"
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