TDA7402_07 STMICROELECTRONICS [STMicroelectronics], TDA7402_07 Datasheet - Page 35

• Manufacturer Part Number: TDA7402_07
• Description: Car radio signal processor
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

TDA7402
Table 7.
5.3
5.3.1
5.3.2
5.3.3
Intermodulation (Note 2.3.1)
Traffic Radio (Note 2.3.2)
SCA - Subsidiary Communications Authorization (Note 2.3.3)
ACI - Adjacent Channel Interference (Note 2.3.4)
Symbol
α114
α190
α57
α67
α2
α3
f
f
Signal f=57kHz
Signal f = 67kHz
Signal f=114kHz
Signal f=190kHz
mod
mod
Electrical characteristics (continued)
Notes about the characteristics
Intermodulation suppression
measured with: 91% pilot signal; fm = 10kHz or 13kHz.
Traffic radio (V.F.) suppression
measured with: 91% stereo signal; 9% pilot signal; fm=1kHz; 5% subcarrier
(f=57kHz, fm=23Hz AM, m=60%)
SCA (subsidiary communications authorization)
measured with: 81% mono signal; 9% pilot signal; fm=1kHz; 10%SCA - subcarrier
( f
S
=10kHz, f
=13kHz, f
= 67kHz, unmodulated ).
Parameter
spur
spur
=1kHz
=1kHz
α67
α3
α2
=
=
α57 V.W.F
=
--------------------------------------------------------------- - f
V
--------------------------------------------------------------- - f
V
--------------------------------------------------------------- - f
V
V
V
O
O
(
V
O
O
O
(
(
O
(
spurious
spurious
(
spurious
(
(
signal
signal
signal
)
=
) at1kHz
) at1kHz
---------------------------------------------------------------------------------------- -
V
) at1kHz
(
(
) at1kHz
(
Test condition
) at1kHz
) at1kHz
O
(
(
(
(
spurious
V
O
)
)
(
)
signal
)
)
)
;
;
;
s
s
s
) at1kHz 23kHz
=
=
(
=
(
(
) at1kHz
(
3 13kHz
(
2 10kHz
2 38kHz
⋅
⋅
⋅
±
)
) 38kHz
) 19kHz
Min.
) 67kHz
–
–
–
)
Typ.
Stereo decoder part
70
75
95
84
65
75
Max.
Unit
dB
dB
dB
dB
dB
dB
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