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TDA7421 Fiches technique(PDF) 31 Page - STMicroelectronics

No de pièce TDA7421
Description  AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS
PDF  38 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7421 Fiches technique(HTML) 31 Page - STMicroelectronics

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FM DEMODULATOR ADJUSTMENT (subaddress 06H)
MSB
LSB
FUNCTION
SDD
DEM6
DEM5
DEM4
DEM3
DEM2
DEM1
DEM0
SD
disable
demadj
MSB
demadj
demadj
demadj
demadj
demadj
demadj
LSB
ADJUSTMENT
CAPACITOR
0000
000
0
0000
001
Cdemod
0000
010
2Cdemod
0000
100
4Cdemod
0001
000
8Cdemod
0010
000
16Cdemod
0100
000
32Cdemod
1000
000
64Cdemod
1111
111
127Cdemod
all combinations allowed
SD DISABLE
0
SD ENABLED
1
SD DISABLED (High
impedance output)
FM IF BUFFERS (subaddress 07H)
MSB
LSB
FUNCTION
FBL3
FBL2
FBL1
FBL0
FBH3
FBH2
FBH1
FBH0
buff2
gain MSB
buff2 gain buff2 gain buff2 gain
LSB
buff1
gain MSB
buff1
gain MSB
buff1 gain
buff1
gain LSB
BUFFER 1 GAIN (dB)
0
000
19.5
0
001
15.5
0
010
16.5
0
100
17.5
1
000
18.5
all else not allowed
BUFFER 2 GAIN (dB)
0
000
8
0
001
4
0
010
5
0
100
6
1
000
7
all else not allowed
TDA7421
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