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TDA7541 Datasheet(PDF) 55 Page - STMicroelectronics

Part # TDA7541
Description  AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system
PDF  76 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7541 Datasheet(HTML) 55 Page - STMicroelectronics

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TDA7541
Software specification
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Table 26.
Addr 10 Quality MUX/FSU (FM 0Eh , AM 0Fh)
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
MUX<1:0>
0
0
Detected multipath information at PIN 23
0
1
Detected adjacent channel information at PIN 23
1
0
Quality information stereo decoder at PIN 23
1
1
FMON=1: Stereo indication at PIN 23
FMON=0: AM IF2 signal at PIN 23
1
Not used
1
Not used
SSTH<7:4>
0
0
0
0
SSTOP = IFC (IF counter status)
0
0
0
1
SSTOP = H if IFC = H & FS > (FM: 0.6V / AM: 1.2V)
0
0
1
0
SSTOP = H if IFC = H & FS >
0
0
1
1
SSTOP = H if IFC = H & FS >
0
1
0
0
SSTOP = H if IFC = H & FS >
--
-
-
1
1
1
1
SSTOP = H if IFC = H & FS > (FM: 4.1V / AM: 4.8V)
Table 27.
Addr 11 Weak Signal Mute (FM A8h)
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
ISSON
0
ISS filter internal control
1
ISS filter forced “ON”
WBON
0
Weather band disable
1
Weather band enable
WMTH<4:2>
0
0
0
Startpoint mute 0
0
0
1
Startpoint mute 1
0
1
0
Startpoint mute 2
---
-
1
1
0
Startpoint mute 6
1
1
1
Startpoint mute 7
WMD<7:5>
0
0
0
Mute depth 0
0
0
1
Mute depth 1
--
-
-
1
0
1
Mute depth 5
--
-
-
1
1
1
Mute depth 7



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