TDA7512 Datasheet, PDF (28/42 Pages) STMicroelectronics – AM/FM CAR RADIO TUNER IC WITH INTELLIGENT SELECTIVITY SYSTEM ISS

TDA7512
2.3.9 Addr 9 Quality Detection Adjacent Channel
Table 17.
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
0/1 Not valid
0
AC highpass frequency 100kHz
1
AC bandpass frequency 100kHz
0
AC gain 32dB
1
AC gain 38dB
000
AC wide band threshold 0.25V
001
AC wide band threshold 0.35V
010
AC wide band threshold 0.45V
-
-
-
-
111
AC wide band threshold 0.95V
00
AC narrow band threshold 0.0V
01
AC narrow band threshold 0.1V
10
AC narrow band threshold 0.2V
11
AC narrow band threshold 0.3V
2.3.10 Addr 10 Quality Detection Multipath
Table 18.
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
0 Multipath control “ON”
1 Multipath control “OFF”
0
MP bandpass frequency 19KHz
1
MP bandpass frequency 31KHz
0
MP gain 12dB
1
MP gain 23dB
00
MP threshold 0.50V
01
MP threshold 0.75V
10
MP threshold 1.00V
11
MP threshold 1.25V
00
Application mode 1
01
Application mode 2
0
Multipath eliminates ac
1
Multipath eliminates ac and ac+
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