TDA7346 查看數據表（PDF） - STMicroelectronics
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TDA7346 Datasheet PDF : 14 Pages
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TDA7346
PHASE SHIFTER 3, 4
MSB
LSB
RESISTOR VALUE (KΩ)
C1
C0
1
M1
M0
0
0
F
0
0
12.060
1
M1
M0
0
0
F
0
1
14.450
1
M1
M0
0
0
F
1
0
18.050
1
M1
M0
0
0
F
1
1
39.100
F = 0 Phase Shifter 4
F = 1 Phase Shifter 3
MSB
1
M1
M0
0
1
M1
M0
0
1
M1
M0
0
1
M1
M0
0
PHASE SHIFTER 2
D1
1
0
0
1
0
0
1
0
1
1
0
1
LSB
D0
0
1
0
1
RESISTOR VALUE (KΩ)
5.640
6.770
8.465
18.300
PHASE SHIFTER 1
MSB
LSB
RESISTOR VALUE (KΩ)
E1
E0
1
M1
M0
0
1
1
0
0
11.745
1
M1
M0
0
1
1
0
1
14.150
1
M1
M0
0
1
1
1
0
17.950
1
M1
M0
0
1
1
1
1
37.625
Example: to program MOVIE MODE with EFFECT control = -7dB with PHASE SHIFTER resistor =
11.745KΩ, PHASE SHIFTER 2 resistor = 6.77KΩ, PHASE SHIFTER 3 resistor = 12.06KΩ, PHASE
SHIFTER 4 resistor = 18.05KΩ, you have to send in sequence 5 bytes:
11010001
11001100
11001001
11000100
11000010
INPUT ATTENUATION
EFFECT CONTROL
SURROUND MODE
PHASE SHIFTER 1 RESISTOR VALUE
PHASE SHIFTER 2 RESISTOR VALUE
PHASE SHIFTER 3, 4 RESISTOR VALUE
POWER ON RESET
-19.375dB
-20dB
OFF MODE
17.950 KΩ
8.465 KΩ
18.050 KΩ
9/14
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