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TDA7541 数据表(PDF) 66 Page - STMicroelectronics

部件名 TDA7541
功能描述  AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system
PDF  76 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7541 数据表(HTML) 66 Page - STMicroelectronics

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Software specification
TDA7541
66/76
Table 39.
Addr 23 SD NB II (FM E2h, AM C2h)
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
NBPC
0
Noise blanker peak charge current low
1
Noise blanker peak charge current high
NBRR<2:1>
0
0
Noise rectifier discharge resistor = infinite
0
1
Noise rectifier discharge resistor =56K
1
0
Noise rectifier discharge resistor =33K
1
1
Noise rectifier discharge resistor =18K
NBMP
0
Multipath influence on peak discharge “OFF”
1
Multipath influence on peak discharge “ON” (-3V/ms)
NBSMP
0
Strong multipath influence on peak discharge “OFF”
1
Strong multipath influence on peak discharge “ON”
VCON
0
Stereo decoder VCO “OFF”
1
Stereo decoder VCO “ON”
PCM
0
Pilot cancellation mode : always
1
Pilot cancellation mode : if pilot > pilot threshold
Not used
1
Table 40.
Addr 24, 26, 27, 28, 29 testing (FEh)
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
1
1
1
1111
0
Only for testing
Table 41.
Addr 25 Testing (FEh)
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
11
11
1
0
Only for testing
IFSEXP
0
Enable expand mode of IF sampling time (see addr4)
1
Disable expand mode of IF sampling time
EWEXP
0
Enable expand mode of error window (see addr4)
1
Disable expand mode of error window



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