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TDA7402 数据表(PDF) 27 Page - STMicroelectronics

部件名 TDA7402
功能描述  CARRADIO SIGNAL PROCESSOR
PDF  59 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7402 数据表(HTML) 27 Page - STMicroelectronics

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TDA7402
2.3 NOTES TO THE CHARACTERISTICS
2.3.1 Intermodulation Suppression
measured with: 91% pilot signal; fm = 10kHz or 13kHz.
2.3.2 Traffic Radio (V.F.) Suppression
measured with: 91% stereo signal; 9% pilot signal; fm=1kHz; 5% subcarrier (f=57kHz, fm=23Hz AM, m=60%)
2.3.3 SCA ( Subsidiary Communications Authorization )
measured with: 81% mono signal; 9% pilot signal; fm=1kHz; 10%SCA - subcarrier ( fS = 67kHz, unmodulated ).
α57
Subcarrier f=57kHz
62
dB
α76
Subcarrier f=76kHz
90
dB
Intermodulation (Note 2.3.1)
α2fmod=10kHz, fspur=1kHz
65
dB
α3fmod=13kHz, fspur=1kHz
75
dB
Traffic Radio (Note 2.3.2)
α57
Signal f=57kHz
70
dB
SCA - Subsidiary Communications Authorization (Note 2.3.3)
α67
Signal f = 67kHz
75
dB
ACI - Adjacent Channel Interference (Note 2.3.4)
α114
Signal f=114kHz
95
dB
α190
Signal f=190kHz
84
dB
Symbol
Parameter
Test Conditio n
Min.
Typ.
Max.
Unit
α2
V
O s ign al
() at1kHz
()
VO spurious
() at1kHz
()
--------------------------------------------------------------- - f
s
;
2 10k Hz
⋅
() 19kHz
–
==
α3
V
O s ig nal
() at1kHz
()
V
O s p uri ous
() at1kHz
()
--------------------------------------------------------------- -f
s
;
313k H z
⋅
() 38kHz
–
==
α57 V.W.F
()
V
O s ignal
() at1kHz
()
V
O s purious
() at1kHz 23kHz
±
()
---------------------------------------------------------------------------------------- -
=
α67
V
O s ig nal
() at1kHz
()
V
O s p uri ous
() at1kHz
()
--------------------------------------------------------------- -f
s
;
238kH z
⋅
() 67kHz
–
==
2.2 ELECTRICAL CHARACTERISTICS (continued)



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