TDA7407 STMicroelectronics, TDA7407 Datasheet - Page 16

• Manufacturer Part Number: TDA7407
• Description: IC PROCESSOR CAR SIGNAL 44TQFP
• Manufacturer: STMicroelectronics
• Type: Car Signal Processorr

Specifications of TDA7407

• Applications: Automotive Audio
• Mounting Type: Surface Mount
• Package / Case: 44-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-3979

Stereo decoder part
3.1
16/46
Notes to the characteristics:
1.
measured with: 91% pilot signal; fm = 10kHz or 13kHz.
2.
3.
4.
measured with: 90% mono signal; 9% pilot signal; fm =1kHz; 1% spurious signal
(fs = 110kHz or 186kHz, unmodulated).
Intermodulation suppression:
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 (fs = 67kHz, unmodulated).
ACI (Adjacent Channel Interference):
α114
α114
α67
α2
α3
=
=
α57 V.W > F.
=
=
=
------------------------------------------------------- -
V
------------------------------------------------------- -
V
------------------------------------------------------- -
V
------------------------------------------------------- -
V
------------------------------------------------------- -
V
V
V
V
V
O spurious
O spurious
O spurious
O spurious
(
V
O spurious
O signal
O signal
O signal
O signal
(
(
O signal
(
(
(
(
(
(
(
(
) at1kHz
) at1kHz
) at1kHz
) at1kHz
) at1kHz
(
(
(
(
)
) at1kHz
) at1kHz
(
) at4kHz
) at4kHz
) at9kHz
(
(
(
(
(
=
--------------------------------------------------------------------------- -
V
O spurious
)
)
)
)
(
)
)
)
)
)
)
V
; f
; f
; F
; F
; F
O signal
s
s
(
s
s
s
= (2 x 10kHz) - 19kHz
= (3 x 13kHz) - 38kHz
= 110kHz - (3 x 38kHz)
= 186kHz - (5 x 38kHz)
=(2 x 38kHz) - 67kHz
) at1kHz 23kHz
(
) at1kHz
(
±
)
)
TDA7407