TDA7405 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA7405' PDF : 56 Pages View PDF
TDA7405
9 MULTIPATH DETECTOR
9.1 Features:
■ internal 19kHz band-pass filter
■ programmable band-pass- and rectifier-gain
■ selectable internal influence on Stereoblend and/or Highcut
Table 9. ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
fCMP Center frequency of Multipath- stereodecoder locked on Pilottone
19
kHz
Bandpass
GBPMP Bandpass Gain
G1
G2
6
dB
12
dB
G3
16
dB
G4
18
dB
GRECTMP Rectifier Gain
G1
G2
7.6
dB
4.6
dB
G3
0
dB
ICHMP Rectifier Charge Current
0.25
µA
0.5
IDISMP Rectifier Discharge Current
4
mA
Quality Detector
A
Multipath Influence Factor
00
0.70
01
0.85
10
1.00
11
1.15
10 FUNCTIONAL DESCRIPTION OF STEREODECODER
Figure 29. Blockdiagram of the Stereodecoder
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