TDA7513T_07 Datasheet, PDF (77/84 Pages) STMicroelectronics – Single chip FM/AM tuner with stereo decoder and audio processor

TDA7513T
Software specifications
Table 79. Subaddress 12: Fieldstrength control
MSB
LSB
Function
D7 D6 D5 D4 D3 D2 D1 D0
Noise blanker fieldstrength threshold
0
0 min
1
0
0
1
1
1 max
Noise blanker fieldstrength gain
0
0
1
0
0
1
1
1
2.3V
1.8V
1.3V
OFF
Quality detector coefficient a
0
0
0
1
1
0
1
1
0
1
a = 0.7
a = 0.85
a = 1.0
a = 1.15
Multipath influence on PEAK discharge
OFF
ON
Table 80. Subaddress 13: Noise rectifier discharge resistor
Bandpass gain, internal influence, change current, reflection gain detectors.
MSB
LSB
Function
D7 D6 D5 D4 D3 D2 D1 D0
Noise rectifier discharge resistor
0
0 R = infinite
0
1 R = 56K
1
0 R = 33K
1
1 R = 18K
Multipath detector bandpass gain
0
0
0
1
6dB
12dB
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