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TDA7541 数据表(PDF) 21 Page - STMicroelectronics

部件名 TDA7541
功能描述  AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system
PDF  76 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7541 数据表(HTML) 21 Page - STMicroelectronics

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TDA7541
Electrical specifications and characteristics
21/76
31. Stereo blend and high cut control
31.1
LGmin
Min. level gain
LG
-0.3
0
0.3
dB
31.2
LGmax
Max. level gain
LG
7.75
8.25
8.75
dB
31.3
LGstep
Level gain step Resolution
0.25
0.55
0.85
dB
31.4
VSBLmin Min. voltage for mono
SBC
24
29
34
%VREF1
31.5
VSBLmax Max. voltage for mono
SBC
53
58
63
%VREF1
31.6
VSBLstep Step resolution
SBC
3.5
4.2
5
%VREF1
31.7
VHCHmin Min. voltage for no highcut HCHT
37
42
47
%VREF1
31.8
VHCHmax Max.voltage for no highcut HCHT
61
66
71
%VREF1
31.9
VHCHstep Step resolution
HCHT
7
8
9
%VREF1
31.10
VHCLmin
Min. voltage for full high
cut
HCLT
6
11
16
%VHCH
31.11 VHCLmax
Max. voltage for full high
cut
HCLT
28
33
38
%VHCH
31.12 VHCLstep Step resolution
HCLT
6.5
7.3
8.1
%VHCH
32. Carrier and harmonic suppression at the output
32.1
a19
Pilot signal f=19kHz
45
50
dB
32.2
a38
Subcarrier f=38kHz
75
dB
32.3
a57
Subcarrier f=57kHz
62
dB
32.4
a76
Subcarrier f=76kHz
90
dB
33. Intermodulation (1)
33.1
a2
fmod=10kHz, fspur=1kHz
65
dB
33.2
a3
fmod=13kHz, fspur=1kHz
75
dB
34. Traffic radio (2)
34.1
a57
Signal f=57kHz
65
70
dB
35. SCA (3)
35.1
a67
Signal f=67kHz
75
dB
36. ACI – adjacent channel interference (4)
36.1
a114
Signal f=114kHz
95
dB
36.2
a190
Signal f=190kHz
84
dB
37. FM noise blanker
37.1
VTRMIN
Min. trigger threshold (5)
VPEAK=0.8V, NBLT “111”
147
mVOP
Table 8.
Stereo decoder section (continued)
(Tamb=25°C, VCC1=VCC2=VCCMIX1=VCCVCO=VCCIF=8.5V, fXtal = 10.25 MHz,
VMPX=500mVrms mono, f=1kHz, deemphasis τ=50µs, in application circuit, unless otherwise
specified)
Item
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit



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