參數(shù)資料
型號: TDA7540N
廠商: STMICROELECTRONICS
元件分類: 調(diào)諧器
英文描述: 2-BAND, AUDIO TUNER, PQFP80
封裝: 14 X 14 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-80
文件頁數(shù): 47/76頁
文件大?。?/td> 1225K
代理商: TDA7540N
TDA7540N
Software specification
0
Disable ISS filter to fixed bandwith (ISS80) in automatic
control
1
Enable ISS filter to fixed bandwith (ISS80) in automatic
control
Table 24.
Addr 12 softmute control 1
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
0
Startpoint mute 0 in application about 3dBV antenna level
0
1
Startpoint mute 1 in application about 4dBV antenna level
---
-
1
Startpoint mute 7 in application about 10dBV antenna level
0000
Mute depth 0 in application 18dB
0001
Mute depth 1 in application 20dB
0010
Mute depth 2 in application 22dB
0011
Mute depth 3 in application 24dB
----
- (logarithmically behaviour)
1111
Mute depth 15 in application 36dB
0
FM mute disable, (has to be 0 in AM mode)
1
FM mute enable
Table 25.
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
AC mute depth 10dB
0
1
AC mute depth 8dB
1
0
AC mute depth 6dB
1
AC mute depth 4dB
0000
AC mute threshold 60mV
0001
AC mute threshold 80mV
0010
AC mute threshold 100mV
----
-
0111
AC mute threshold 340mV
Table 23.
Addr 11 quality deviation detection
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
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