TDA7402_07 Datasheet, PDF (37/71 Pages) STMicroelectronics – Car radio signal processor

TDA7402
Stereo decoder part
Table 8. Electrical characteristics
Symbol
Parameter
Test condition
Min. Typ. Max. Unit
V_RECT Rectifier voltage
V_RECTDE ^{Deviation dependent}
V ^{rectifier voltage}
V_MPX=0mV
V_MPX=50mV, f=150kHz
V_MPX=200mV, f=150kHz
11
meas.with
10
V_MPX=500mV
01
(75kHz dev.)
00
Fieldstrength
V_RECTFS controlled rectifier
voltage
meas.with
11
V_MPX=0mV,
10
V_LEVEL<< V_SBL
01
(fully mono)
00
00
T_SFM
Suppression pulse duration FM
Signal HOLDN in
testmode
01
10
11
0.5 0.9 1.3
V
1.5 1.7 2.1
V
2
2.5 2.9
V
0.5 0.9(off) 1.3 V_OP
0.9
1.2
1.5
V_OP
1.7
2.0
2.3
V_OP
2.5
2.8
3.1
V_OP
0.5 0.9(off) 1.3
V
0.9 1.4 1.5
V
1.7 1.9 2.3
V
2.1 2.4 3.1
V
38
µs
25.5
µs
32
µs
22
µs
00
1.2
ms
T_SAM
Suppression pulse duration AM
Signal HOLDN in
testmode
01
10
800
1.0
µs
µs
11
640
µs
00
V_RECTAD Noise rectifier discharge ⁽²⁾
Signal PEAK in
01
J
adjustment
testmode
10
11
Noise rectifier ⁽²⁾
SR_{PEAK charge}
Signal PEAK in
0
testmode
1
0.3
0.8
V/ms
1.3
2.0
10
mV/µs
20
00
V_ADJMP
Noise rectifier adjustment
through multipath ⁽²⁾
Signal PEAK in
testmode
01
10
11
0.3
0.5
V/ms
0.7
0.9
R_AMIF AM IF Input resistance
35
50
65 kOhm
G_AMIF,min min. gain AM IF
G_AMIF,max max. gain AM IF
G_AMIF,step step gain AM IF
Signal AM-RECTIFIER in
Testmode
6
dB
20
dB
2
dB
f_AMIF,min min. f_c AM IF
f_AMIF,max max. f_c 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
37/71