TDA7466 Datasheet, PDF (15/21 Pages) STMicroelectronics – DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER

TDA7466
SRS SPACE CONTROL: ATTENUATION SELECTION
MSB
D7
D6
D5
D4
D3
D2
D1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
0
0
0
0
0
1
0
1
0
0
1
1
1
X
X
X
X
X = DON’T CARE
SPEAKER/RECORD ATTENUATION = 0dB ∼ -31dB
LSB
D0
0
1
0
1
0
1
0
1
X
SPACE ATTENUATION
1 dB STEPS
0
-1
-2
-3
-4
-5
-6
-7
8 dB STEPS
0
-8
-16
-24
MUTE
SRS CENTER CONTROL: ATTENUATION SELECTION
MSB
LSB
CENTER ATTENUATION
D7
D6
D5
D4
D3
D2
D1
D0
1 dB STEPS
0
0
0
0
0
0
1
-1
0
1
0
-2
0
1
1
-3
1
0
0
-4
1
0
1
-5
1
1
0
-6
1
1
1
0
0
0
-7
8 dB STEPS
0
0
0
1
-8
0
1
0
-16
0
1
1
-24
MUTE
1
X
X
X
X
X
SRS INPUT
0
NO SURROUND SIGNAL
1
SURROUND SIGNAL
SRS SWITCH
0
SRS ON
1
SRS OFF
X = DON’T CARE
SPACE ATTENUATION = 0dB ∼ -31dB
RECOMMENDED TO ATTENUATE -3dB IN INPUT ATTENUATION DURING ”SRS OFF”
TO FULFILL SRS BYPASS MODE WHEN SRS FUNCTION IS USED
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