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TDA7540N датащи(PDF) 52 Page - STMicroelectronics

номер детали TDA7540N
подробное описание детали  AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS)
PDF  76 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7540N датащи(HTML) 52 Page - STMicroelectronics

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Software specification
TDA7540N
52/76
1111
AC mute “OFF”
0
AC mute filter 110KHz
1
AC mute filter 100KHz
Table 26.
Addr 14 VCODIV/PLLREF
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
0
0
not valid (only for testing)
0
1
VCO frequency divided by 2
1
0
VCO frequency divided by 3
1
1
original VCO frequency
0
VCO” I” signal 0 degree
1
VCO “I” signal 180 degree
1
0
0
PLL reference frequency 50KHz
1
0
1
PLL reference frequency 25KHz
1
1
0
PLL reference frequency 10KHz
1
1
1
PLL reference frequency 9KHz
0
0
0
PLL reference frequency 2KHz
0
Select FM mode
1
Select AM mode
0
Select PLL low pass filter FM
1
Select PLL low pass filter AM
Table 25.
Addr 13 softmute control 2
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
Table 27.
Addr 15 FM AGC
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
0
0
RFAGC threshold V9-11TH= 85(77 ANT)dBµV
0
1
RFAGC threshold V9-11TH= 90(82 ANT)dBµV
1
0
RFAGC threshold V9-11TH= 94(86 ANT)dBµV
1
1
RFAGC threshold V9-11TH= 96(88 ANT)dBµV
0
0
IFAGC threshold V77TH= 86(60 ANT)dBµV
0
1
IFAGC threshold V77TH= 92(66 ANT)dBµV
1
0
IFAGC threshold V77TH= 96(70 ANT)dBµV
1
1
IFAGC threshold V77TH= 98(72 ANT)dBµV



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