TDA7461N Datasheet, PDF (24/31 Pages) STMicroelectronics – CAR RADIO SIGNAL PROCESSOR

TDA7461N
Mute, Beep and Mixing
MSB
LSB
MUTE/BEEP/MIXING
D7 D6 D5 D4 D3 D2 D1 D0
Mute
0 Enable Softmute
1 Disable Softmute
0
0
Mute time =0.48 ms
0
1
Mute time =0.96 ms
1
0
Mute time =40.4 ms
1
1
Mute time =324 ms
0
Stereo Decoder Softmute Influence = off
1
Stereo Decoder Softmute Influence = on
Beep
0
Beep Frequency = 600Hz
1
Beep Frequency = 1.2KHz
0
1
0
0
0
1
1
0
1
1
Mixing
Mix-Source = Beep
Mix-Source = Phone
Full Mix Signal
Source -12dB + Mix-Signal -2.5dB
Source -6dB + Mix-Signal -6dB
Full Source
Note: for more information to the Stereodecoder-Softmute-Influence please refer to the stereodecoder description.
Volume
MSB
LSB
ATTENUATION
D7 D6 D5 D4 D3 D2 D1 D0
Gain/Attenuation
0
0
0
0
0
0
0 +32dB
0
0
0
0
0
0
1 +31dB
:
:
:
:
:
:
::
0
0
0
1
1
0
0 +20dB
0
0
0
1
1
0
1 +19dB
0
0
0
1
1
1
0 +18dB
:
:
:
:
:
:
::
0
0
1
1
1
1
1 +1dB
0
1
0
0
0
0
0
0dB
0
1
0
0
0
0
1 - 1dB
:
:
:
:
:
:
::
1
1
0
1
1
1
0 -78dB
1
1
0
1
1
1
1 -79dB
Softstep
0
Softstep Volume = off
1
Softstep Volume = on
Note: 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.
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