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TDA7540B データシート(PDF) 49 Page - STMicroelectronics

部品番号 TDA7540B
部品情報  AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)
PDF  75 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7540B データシート(HTML) 49 Page - STMicroelectronics

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TDA7540B
Software specification
49/75
0
Disable ISS filter to fixed bandwith (ISS80) in automatic
control
1
Enable ISS filter to fixed bandwith (ISS80) in automatic
control
Table 23.
Addr 12 Softmute Control 1
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
0
0
0
Startpoint mute 0 in application about 3dBµV antenna level
0
0
1
Startpoint mute 1 in application about 4dBµV antenna level
---
-
1
1
1
Startpoint mute 7 in application about 10dBµV antenna level
0
0
0
0
Mute depth 0 in application 18dB
0
0
0
1
Mute depth 1 in application 20dB
0
0
1
0
Mute depth 2 in application 22dB
0
0
1
1
Mute depth 3 in application 24dB
----
- (logarithmically behaviour)
1
1
1
1
Mute depth 15 in application 36dB
0
FM mute disable, (has to be 0 in AM mode)
1
FM mute enable
Table 24.
Addr 13 Softmute Control 2
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
0
Disable mute threshold for ISS filter “ON”
1
Enable mute threshold for ISS filter “ON”
0
0
AC mute depth 10dB
0
1
AC mute depth 8dB
1
0
AC mute depth 6dB
1
1
AC mute depth 4dB
0
0
0
0
AC mute threshold 60mV
0
0
0
1
AC mute threshold 80mV
0
0
1
0
AC mute threshold 100mV
----
-
0
1
1
1
AC mute threshold 340mV
Table 22.
Addr 11 Quality Deviation Detection (continued)
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0



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