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TDA7432 Datasheet(PDF) 6 Page - STMicroelectronics

Part # TDA7432
Description  BASIC FUNCTION AUDIO PROCESSOR
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7432 Datasheet(HTML) 6 Page - STMicroelectronics

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SUBADDRESS (receive mode)
MSB
LSB
FUNCTION
X
X
X
I
A3A2A1A0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Input selector
Volume
Bass, Treble
Speaker attenuator LF
Speaker attenuator LR
Speaker attenuator RF
Speaker attenuator RR
Loudness
I = Auto increment
X = Not used
DATA BYTE SPECIFICATION
X = not relevant; set to ”1” during testing
Input Selector
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
0
0
0
1
0
0
1
1
X
0
1
0
1
X
IN
not used
mono
no input selected
mute (low homic)
non-symmetrical bass cut (note 1)
symmetrical bass cut
extended bass range
standard bass range
±14dB
For example to select the MONO input the Data Byte is: X X X X 0 1 0.
An additional direct mute function is included in the Speaker Attenuators.
Note 1: Bass cut for very low frequencies.
MSB
LSB
VOLUME
D7(*)
D6
D5
D4
D3
D2
D1
D0
1
1
1
1
1
1
1
0
0
0
0
1
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
+32dB
+16dB
0dB
-16dB
-32dB
-48dB
-64dB
1
1
1
1
1
0
0
0
1
0
0
0
1
0
0
1
1
0
1
0
1
0dB
-1dB
-2dB
-15dB
(*) Loudness = ON
Note 2:
It 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.
TDA7432
6/10


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