TDA7461N Datasheet, PDF (23/31 Pages) STMicroelectronics – CAR RADIO SIGNAL PROCESSOR

TDA7461N
DATA BYTE SPECIFICATION
Input Selector
MSB
LSB
FUNCTION
D7 D6 D5 D4 D3 D2 D1 D0
Source Selector
0
0
0 CD
0
0
1 Cassette
0
1
0 Phone
0
1
1 AM
1
0
0 Stereo Decoder
1
0
1 Input FM
1
1
0 Mute
1
1
1 AC inputs
CD Mode
0
CD Full-differential
1
CD Quasi-diff
AM/FM Mode
1
0
1
1 AM mono
0
0
1
1 AM stereo
0
1
0
0 AM through Stereodecoder
1
1
0
0 FM- Stereodecoder
0
0
0
0
0
1
:
:
:
1
1
0
1
1
1
In-Gain
14dB
12dB
:
2 dB
0 dB
For example to select the CD input in quasi-differential mode with gain of 8dB the Data Byte is: 0/0 1111000
Loudness
MSB
LSB
LOUDNESS
D7 D6 D5 D4 D3 D2 D1 D0
Attenuation
0
0
0
0 0dB
0
0
0
1 -1dB
:
:
:
::
1
1
1
0 -14dB
1
1
1
1 -15dB
Filter
0
on
1
off (flat)
Center Frequency
0
200Hz
1
400Hz
Loud ness Q
0
low (1^st order)
1
normal (2^nd order)
1
must be ”1”
Note: The attenuation is specified at high frequencies. Around the center frequency the value is different depending on the programmed
attenuation (see Loudness frequency response).
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