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TDA7540B Datasheet(PDF) 55 Page - STMicroelectronics

Part # TDA7540B
Description  AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)
PDF  75 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7540B Datasheet(HTML) 55 Page - STMicroelectronics

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TDA7540B
Software specification
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Table 33.
Addr 22 AM IF Noise Blanker
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
0000
AINBT 0mV
0001
AINBT 12.5mV
0010
AINBT 25mV
----
-
1111
AINBT 187.5mV
0
0
AINBD “ON”
0
1
AINBD 4.0V
1
0
AINBD 3.2V
1
1
AINBD “OFF”
00
AINT 8µs
01
AINT 11µs
10
AINT 14µs
11
AINT 17µs
Table 34.
Addr 23 Switch Control
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
0
S1 LOW output voltage
1
S1 HIGH output voltage
0
S1 emitter output available
1
S1 open collector output available
0
S2 LOW output voltage
1
S2 HIGH output voltage
0
S2 emitter output available
1
S2 open collector output available
0
0
0
0
SSTOP=IFC (IF counter status)
0
0
0
1
SSTOP= H if IFC=H&FSU>0.89V
0
0
1
0
SSTOP= H if IFC=H&FSU>1.16V
0
0
1
1
SSTOP= H if IFC=H&FSU>1.43V
----
1
1
1
1
SSTOP= H if IFC=H&FSU>4.67V



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