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TDA7405 датащи(PDF) 24 Page - STMicroelectronics

номер детали TDA7405
подробное описание детали  EQUALIZER CARRADIO SIGNAL PROCESSOR
PDF  56 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7405 датащи(HTML) 24 Page - STMicroelectronics

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DEEMPHASIS and HIGHCUT
τDeempF
M
Deemphasis Timeconstants FM
VLEVEL >> VHCH
25
50
75
µs
VLEVEL >> VHCH
44
62.5
80
µs
VLEVEL >> VHCH
50
75
100
µs
VLEVEL >> VHCH
70
100
130
µs
MFM
Highcut Timeconstant Multiplier FM
VLEVEL << VHCL
3
τDeempA
M
Deemphasis Timeconstants AM
VLEVEL >> VHCH
37.5
µs
VLEVEL >> VHCH
47
µs
VLEVEL >> VHCH
56
µs
VLEVEL >> VHCH
75
µs
MAM
Highcut Timeconstant Multiplier
AM
VLEVEL << VHCL
3.7
REF5V
Internal Reference Voltage
4.7
5
5.3
V
Lmin
min. LEVEL Gain
-1
0
1
dB
Lmaxs
max. LEVEL Gain
5
6
7
dB
LGstep
LEVEL Gain Step Resolution
see section 2.7
0.2
0.4
0.6
dB
VSBLmin Min. Voltage for Mono
see section 2.8
17
20
23
%REF5V
VSBLmax Max. Voltage for Mono
see section 2.8
62
70
78
%REF5V
VSBLstep Step Resolution
see section 2.8
1.6
3.3
5.0
%REF5V
VHCHmin Min. Voltage for NO Highcut
see section 2.9
37
42
47
%REF5V
VHCHmax Max. Voltage for NO Highcut
see section 2.9
58
66
74
%REF5V
VHCHstep Step Resolution
see section 2.9
4.2
8.4
12.6
%REF5V
VHCLmin Min. Voltage for FULL High cut
see section 2.9
15
17
19
%VHCH
VHCLmax Max. Voltage for FULL High cut
see section 2.9
29
33
37
%VHCH
VHCLstep Step Resolution
see section 2.9
2.1
4.2
6.3
%REF5V
Carrier and harmonic suppression at the output
α19
Pilot Signalf=19kHz
40
50
dB
α38
Subcarrier f=38kHz
75
dB
α57
Subcarrier f=57kHz
62
dB
α76
Subcarrier f=76kHz
90
dB
Table 3. ELECTRICAL CHARACTERISTICS (continued)
VS = 9V, deemphasis time constant = 50µs, MPX input voltage VMPX = 500mV (75kHz deviation),
modulation frequency = 1kHz, input gain = 6dB, Tamb = 27°C, unless otherwise specified.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit



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