TDA7406 Datasheet, PDF (34/64 Pages) STMicroelectronics – Car radio signal processor

Multipath detector
7
Multipath detector
TDA7406
7.1
Features:
● internal 19kHz band-pass filter
● programmable band-pass- and rectifier-gain
● selectable internal influence on Stereoblend and/or Highcut
7.2
Multipath detector electrical characteristics
Table 7. Multipath detector electrical characteristics
Symbol
Parameter
Test Conditions
f_CMP
Center frequency of Multipath-
Bandpass
stereodecoder locked on Pilot
tone
G1
G2
G_BPMP Bandpass Gain
G3
G4
G1
G_{RECTM Rectifier Gain}
G2
P
G3
I_CHMP Rectifier Charge Current
I_DISMP Rectifier Discharge Current
Quality Detector
00
01
A Multipath Influence Factor
10
11
Min. Typ. Max. Unit
19
kHz
6
dB
12
dB
16
dB
18
dB
7.6
dB
4.6
dB
0
dB
0.25
µA
0.5
4
mA
0.70
0.85
1.00
1.15
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