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TEA6420 Datasheet(PDF) 4 Page - STMicroelectronics

Part No. TEA6420
Description  BUS-CONTROLLED AUDIO MATRIX SWITCH
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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TEA6420 Datasheet(HTML) 4 Page - STMicroelectronics

   
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TEA6420
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SOFTWARE SPECIFICATION
1. Chip address
2. Data bytes
X = don’t care - MSB is transmitted first
Example : X1001100 connects output 3 with input 5 at a gain of 4dB
The following are selected after power-on reset : input 5 selected for all outputs ; gain = 0dB.
Address
HEX
ADDR
1001 1000
98
0
1001 1010
9A
1
Output select
X0
0
1
1
0
1
0
1
G1
G0
I2
I1
I0
Output 1
Output 2
Output 3
Output 4
Input select
XQ1
Q0
G1
G0
0
0
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
Input 1
Input 2
Input 3
Input 4
Input 5
Mute
Gain select
XQ1
Q0
0
0
1
1
0
1
0
1
I2
I1
I0
Gain = 6 dB
Gain = 4 dB
Gain = 2 dB
Gain = 0 dB
1


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