TDA7402 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA7402' PDF : 69 Pages View PDF
TDA7402
Stereo decoder part
Table 8. Noise blanker electrical characteristics (continued)
Symbol
Parameter
Test condition
Min. Typ. Max. Unit
VMPX=0mV
0.5 0.9 1.3
V
VRECT Rectifier voltage
VMPX=50mV, f=150kHz
1.5 1.7 2.1
V
VMPX=200mV, f=150kHz
2
2.5 2.9
V
VRECTDE Deviation dependent
V rectifier voltage
meas.with
VMPX=500mV
(75kHz dev.)
11
0.5 0.9(off) 1.3 VOP
10
0.9
1.2
1.5
VOP
01
1.7
2.0
2.3
VOP
00
2.5
2.8
3.1
VOP
Fieldstrength
) VRECTFS controlled rectifier
t(s voltage
meas.with
VMPX=0mV,
VLEVEL<< VSBL
(fully mono)
roduc TSFM
Suppression pulse duration FM
Signal HOLDN in
testmode
olete P TSAM
Suppression pulse duration AM
Signal HOLDN in
testmode
- Obs VRECTAD Noise rectifier discharge (2)
t(s) J
adjustment
uc Noise rectifier (2)
d SRPEAK charge
te Pro VADJMP
Noise rectifier adjustment
through multipath (2)
sole RAMIF AM IF Input resistance
ObGAMIF,min min. gain AM IF
Signal PEAK in
testmode
Signal PEAK in
testmode
Signal PEAK in
testmode
11
0.5 0.9(off) 1.3
V
10
0.9 1.4
1.5
V
01
1.7 1.9
2.3
V
00
2.1 2.4
3.1
V
00
38
µs
01
25.5
µs
10
32
µs
11
22
µs
00
1.2
ms
01
800
µs
10
1.0
µs
11
640
µs
00
0.3
01
0.8
V/ms
10
1.3
11
2.0
0
10
mV/µs
1
20
00
0.3
01
0.5
V/ms
10
0.7
11
0.9
35
50
65 kOhm
6
dB
GAMIF,max max. gain AM IF
Signal AM-RECTIFIER in
Testmode
20
dB
GAMIF,step step gain AM IF
2
dB
fAMIF,min min. fc AM IF
fAMIF,max max. fc AM IF
Signal AM-RECTIFIER in
Testmode
14
kHz
56
kHz
1. All thresholds are measured using a pulse with TR = 2 µs, THIGH= 2 µs and TF = 10 µs. The repetition rate must not
increase the PEAK voltage.
2. By design/characterization functionally guaranteed through dedicated test mode structure
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