TDA7401 查看數據表（PDF） - STMicroelectronics
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TDA7401 Datasheet PDF : 10 Pages
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TDA7401
MODE
MSB
LSB
D7
D6
D5
D4
D3
D2
D1
D0
FUNCTION
0
X
High Pass Mute ON
1
High Pass Mute OFF
0
AUX1 Input Mute ON
1
AUX1 Input Mute OFF
0
AUX2 Inverted Output
1
AUX2 Non Inv. Output
AUX 2 Output Selection
0
0
High Pass Filter Front
0
1
High Pass Filter Rear
1
0
Aux 1 Input
1
1
Mute
AUX1 Low Pass Filter
(C1 = C2 = 100nF)
0
0
Flat
0
1
120Hz
1
0
80Hz
1
1
50Hz
GAIN AUX1L, AUX1R
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
1
0
0
1
1
1
1
1 +31dB
:
:
:
:
:
:
:
::
1
0
0
1
0
0
0
1 +17dB
1
0
0
1
0
0
0
0 +16dB
1
0
0
0
1
1
1
1 +15dB
:
:
:
:
:
:
:
::
1
0
0
0
0
0
0
1 +1dB
1
0
0
0
0
0
0
0 0dB
0
0
0
0
0
0
0
0 0dB
0
0
0
0
0
0
0
1 -1dB
:
:
:
:
:
:
:
::
0
0
0
0
1
1
1
1 -15dB
0
0
0
1
0
0
0
0 -16dB
:
:
:
:
:
:
:
::
0
1
0
0
1
1
1
0 -78dB
0
1
0
0
1
1
1
1 -79dB
GAIN AUX1L, R
X
1
1
X
X
X
X
X Mute
Note: Is is not recommended to use a gain more than 20dB for system performance reason. In general, the max. gain should be limited by
software to the maximum value, which is needed for the system.
7/10
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