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TDA7514 Datasheet(PDF) 18 Page - STMicroelectronics

Part # TDA7514
Description  SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR
PDF  74 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7514 Datasheet(HTML) 18 Page - STMicroelectronics

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TDA7514
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3.4.1
NOTES TO THE CHARACTERISTICS
3.4.1.1 Intermodulation Suppression
measured with: 91% pilot signal; fm = 10kHz or 13kHz.
3.4.1.2 Traffic Radio (V.F.) Suppression
measured with: 91% stereo signal; 9% pilot signal; fm=1kHz; 5% subcarrier (f=57kHz, fm=23Hz AM,
m=60%)
3.4.1.3 SCA ( Subsidiary Communications Authorization )
measured with: 81% mono signal; 9% pilot signal; fm=1kHz; 10%SCA - subcarrier ( fS = 67kHz, unmodu-
lated ).
3.4.1.4 ACI ( Adjacent Channel Interference )
measured with: 90% mono signal; 9% pilot signal; fm=1kHz; 1% spurious signal ( fS = 110kHz or 186kHz,
unmodulated).
α2
V
O signal
() at1kHz
()
V
O spurious
() at1kHz
()
----------------------------------------------------------------- ;
f
s
210kHz
⋅
() 19kHz
–
=
=
α3
V
O signal
() at1kHz
()
V
O spurious
() at1kHz
()
----------------------------------------------------------------- ;
f
s
3.13 kHz
⋅
() 38kHz
–
=
=
α57 V·WF
()
V
O sign al
() at1kHz
()
V
O spurious
() at1kHz 23kHz
±
()
------------------------------------------------------------------------------------------ ""
=
α67
V
O signal
() at1kHz
()
V
O spurious
() at1kHz
()
----------------------------------------------------------------- ;
f
s
2.38kHz
() 67kHz
–
=
=
α114
V
O signal
() at1kHz
()
V
O spurious
() at1kHz
()
----------------------------------------------------------------- ;
f
s
110kHz
3.38kHz
()
–
=
=
α190
V
O signal
() at1kHz
()
V
O spurious
() at1kHz
()
----------------------------------------------------------------- ;
f
s
186kHz
5.38kHz
()
–
=
=



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