TDA7540B Datasheet, PDF (57/75 Pages) STMicroelectronics – AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)

TDA7540B
Software specification
Table 36. Addr 25 Stereodecoder 2 (continued)
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
10
Stereodecoder ingain = 1,25dB
11
Stereodecoder ingain = 0dB
Table 37. Addr 26 Stereodecoder 3
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
0 0 0 Audio noise blanker low threshold 280mV
0 0 1 Audio noise blanker low threshold 261mV
0 1 0 Audio noise blanker low threshold 242mV
0 1 1 Audio noise blanker low threshold 223mV
1 0 0 Audio noise blanker low threshold 204mV
1 0 1 Audio noise blanker low threshold 185mV
1 1 0 Audio noise blanker low threshold 166mV
1 1 1 Audio noise blanker low threshold 147mV
00
Audio noise blanker noise controlled threshold 1200mV
01
Audio noise blanker noise controlled threshold 950mV
10
11
Audio noise blanker noise controlled threshold 700mV
Audio noise blanker noise controlled threshold 450mV
0
Audio noise blanker OFF
1
Audio noise blanker ON
00
Deviation adjust 2,0V
01
10
Deviation adjust 1,5V
Deviation adjust 1,0V
11
Deviation detector off
Table 38. Addr 27 Stereodecoder 4
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
0 High Cut OFF
1 High Cut ON
00
max. High Cut 10dB
01
max. High Cut 5.5dB
10
max. High Cut 7.5dB
11
max. High Cut 8.5dB
Function
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