TDA7512 Datasheet, PDF (27/42 Pages) STMicroelectronics – AM/FM CAR RADIO TUNER IC WITH INTELLIGENT SELECTIVITY SYSTEM ISS

TDA7512
2.3.7 Addr 7 AM Control
Table 15.
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
0 Normal AGC time constant
1 Short time constant for AM seek stop
0
Multipath information available FM at PIN 34
1
AM stereo output available at PIN 34
00
Prescaler ratio 10
01
Prescaler ratio 8
10
Prescaler ratio 6
11
Prescaler ratio 4
2.3.8 Addr 8 Quality ISS Filter
Table 16.
MSB
d7 d6 d5 d4 d3 d2
0
1
0
1
0
1
000
001
010
011
-
-
-
111
LSB
d1 d0
Function
0 ISS filter control “ON”
1 ISS filter control “OFF”
0
Switch ISS filter “OFF”
1
Switch ISS filter “ON”
Switch “OFF” ISS filter 120kHz
Switch “ON” ISS filter 80kHz
Switch “OFF” ISS filter 30KHz for weatherband
Switch “ON” ISS filter 30KHz for weatherband
Disable TV offset for weather band
Enable TV offset for weather band (+4V)
discharge current1µA, charge current mid 74µΑ narrow124µΑ
discharge current3µA, charge current mid 72µΑ narrow122µΑ
discharge current5µA, charge current mid 70µΑ narrow120µΑ
discharge current7µA, charge current mid 68µΑ narrow118µΑ
-
discharge current15µA,charge current mid 60µΑnarrow110µΑ
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