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7442 Datasheet(PDF) 8 Page - STMicroelectronics

Part # 7442
Description  TONE CONTROL AND SURROUND DIGITALLY CONTROLLED AUDIO PROCESSOR
PDF  17 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

7442 Datasheet(HTML) 8 Page - STMicroelectronics

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TDA7442 - TDA7442D
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5
DATA BYTES
Address = 80(HEX)
5.1 Function Selection:
The first byte (subaddress)
B = 1 incremental bus; active
B = 0 no incremental bus;
X = indifferent 0,1
Input Attenuation Selection
INPUT ATTENUATION = 0 ~ -31.5dB
MSB
LSB
SUBADDRESS
D7
D6
D5
D4
D3
D2
D1
D0
B
X
X
X
00
00
INPUT ATTENUATION
B
X
X
X
0
0
0
1
SURROUND & OUT & EFFECT
CONTROL
B
X
X
X
0
0
1
0
PHASE RESISTOR
B
X
X
X
00
11
BASS
B
X
X
X
01
00
TREBLE
B
X
X
X
0
1
0
1
SPEAKER ATTENUATION "L"
B
X
X
X
0
1
1
0
SPEAKER ATTENUATION "R"
B
X
X
X
01
11
NOT ALLOWED
B
X
X
X
10
00
NOT ALLOWED
B
X
X
X
1
0
0
1
INPUT MULTIPLEXER
MSB
LSB
INPUT ATTENUATION
D7
D6
D5
D4
D3
D2
D1
D0
0.5 dB STEPS
10
0
0
0
10
0
1
-0.5
10
1
0
-1
10
1
1
-1.5
11
0
0
-2
11
0
1
-2.5
11
1
0
-3
11
1
1
-3.5
4 dB STEPS
1000
0
1001
-4
1010
-8
1011
-12
1100
-16
1101
-20
1110
-24
1111
-28



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