TDA7402_07 STMICROELECTRONICS [STMicroelectronics], TDA7402_07 Datasheet - Page 33

• Manufacturer Part Number: TDA7402_07
• Description: Car radio signal processor
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

TDA7402
Table 7.
De-emphasis and highcut
Carrier and harmonic suppression at the output
VHCH
VHCH
τ
τ
VHCL
VHCL
VSBL
VSBL
VHCH
VHCL
VSBL
Symbol
DeempAM
DeempFM
REF5V
L
L
M
M
L
α19
α38
α57
Gstep
maxs
α76
min
FM
AM
max
step
max
step
min
max
step
min
min
De-emphasis timeconstants FM
Highcut timeconstant multiplier FM
De-emphasis timeconstants AM
Highcut timeconstant multiplier AM
Internal reference voltage
min. LEVEL gain
max. LEVEL gain
LEVEL gain step resolution
Min. voltage for mono
Max. voltage for mono
Step resolution
Min. voltage for NO highcut
Max. voltage for NO highcut
Step resolution
Min. voltage for FULL high cut
Max. voltage for FULL high cut
Step resolution
Pilot signal f=19kHz
Subcarrier f=38kHz
Subcarrier f=57kHz
Subcarrier f=76kHz
Electrical characteristics (continued)
Parameter
V
V
V
V
V
V
V
V
V
V
see section 2.7
see section 2.8
see section 2.8
see section 2.8
see section 2.9
see section 2.9
see section 2.9
see section 2.9
see section 2.9
see section 2.9
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
Test condition
>> V
>> V
>> V
>> V
<< V
>> V
>> V
>> V
>> V
<< V
HCH
HCH
HCH
HCH
HCL
HCH
HCH
HCH
HCH
HCL
Min.
4.7
0.2
1.6
4.2
2.1
25
44
50
70
17
62
37
58
40
-1
15
29
5
Typ.
62.5
37.5
100
3.7
0.4
3.3
8.4
4.2
Stereo decoder part
70
50
50
75
47
56
75
20
42
66
75
62
90
17
33
3
5
0
6
Max.
12.6
100
130
5.3
0.6
5.0
6.3
75
80
23
78
47
74
19
37
1
7
%REF
%REF
%REF
%REF
%REF
%REF
%REF
%VHCH
%VHCH
Unit
dB
dB
dB
5V
5V
5V
5V
5V
5V
5V
dB
dB
dB
dB
µs
µs
µs
µs
µs
µs
µs
µs
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V