TDA7340 Datasheet, PDF (14/16 Pages) STMicroelectronics – AUDIO SIGNAL PROCESSOR

TDA7340
VOLUME
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
FUNCTION
0.31dB FINE ATTENUATION STEPS
0
00
0
1 -0.31dB
1
0 -0.62dB
1
1 -0.94dB
1.25dB COARSE ATTENUATION STEPS
0
0
0
0dB
0
0
1
0
1
0
-1.25dB
-2.5dB
0
1
1
-3.75dB
1
0
0
1
0
1
1
1
0
-5dB
-6.25dB
-7.5dB
1
1
1
-8.75dB
0
0
0
10dB GAIN ATTENUATION STEPS
20dB
0
0
1
10dB
0
1
0
0
1
1
1
0
0
0dB
-10dB
-20dB
1
0
1
-30dB
1
1
0
1
1
1
-40dB
-50dB
For example to select -47.81dB Volume the Data Byte is: 11011001
STATUS AFTER POWER ON RESET
VOLUME
BASS, TREBLE
SPKRS LF, RF, LR, RR
LOUDNESS
INPUT
STEREODEC
MUTE
-59.69dB
Treble = +2dB, Bass = 0dB, symmetrical
-37.5dB
OFF, -17.5dB
No input selected, GAIN = 0dB, DIFF CD GAIN = -06dB, FULLY DIFF MODE
OFF, FORCED MONO, 6dB GAIN, PILOT THRESHOLD LOW, NOISE BLANKER =11
DIRECTLY MUTED, SOFT OFF, ZEROCROSS RESET, WINDOW THRESHOLD =11
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