TDA7420 Datasheet, PDF (22/29 Pages) STMicroelectronics – MULTIFUNCTIONAUDIO PROCESSOR

TDA7420
METAL RESISTANCE CONTROL
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
FUNCTION
Right Channel
1
0
0
0 R metal +20%
0
0
0
0 R metal +15%
0
0
0
1 R metal +10%
0
0
1
0 R metal +5%
0
0
1
1 R metal =3.8KΩ Typical
0
1
0
0 R metal - 5%
0
1
0
1 R metal - 10%
0
1
1
0 R metal - 15%
0
1
1
1 R metal - 20%
Left Channel
1
0
0
0
R metal +20%
0
0
0
0
R metal +15%
0
0
0
1
R metal +10%
0
0
1
0
R metal +5%
0
0
1
1
R metal =3.8KΩ Typical
0
1
0
0
R metal - 5%
0
1
0
1
R metal - 10%
0
1
1
0
R metal - 15%
0
1
1
1
R metal - 20%
PREAMPLIFIER
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
FUNCTION
Attenuation control
0
0 0dB
0
1 -20dB
1
0 -23dB
1
1 Mute
0
Reverse Mode On
1
Forward Mode On
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