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TDA7513 数据表(PDF) 14 Page - STMicroelectronics

部件名 TDA7513
功能描述  SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR
PDF  58 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7513 数据表(HTML) 14 Page - STMicroelectronics

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TDA7513
14/58
3.4 NOISE BLANKER
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
DEEMPHASIS and HIGHCUT
τHC50
Deemphasis Time Constant
Bit 7, Subadr, 10 = 0,
VLEVEL >> VHCH
25
50
75
µs
τHC75
Deemphasis Time Constant
Bit 7, Subadr, 10 = 1,
VLEVEL >> VHCH
50
75
100
µs
τHC50
Highcut Time Constant
Bit 7, Subadr, 10 = 0,
VLEVEL >> VHCL
100
150
200
µs
τHC75
Highcut Time Constant
Bit 7, Subadr, 10 = 1,
VLEVEL >> VHCL
150
225
300
µs
STEREOBLEND- and HIGHCUT-CONTROL
REF5V
Internal Reference Voltage
4.7
5
5.3
V
LGmin
Min. LEVEL Gain
-1
0
1
dB
LGmax
Max. LEVEL Gain
8
10
12
dB
LGstep
LEVEL Gain Step Resolution
0.3
0.67
1
dB
VSBLmin
Min. Voltage for Mono
25
29
33
%REF5V
VSBLmax
Max. Voltage for Mono
54
58
62
%REF5V
VSBLstep
Step Resolution
2.2
4.2
6.2
%REF5V
VHCHmin
Min. Voltage for NO Highcut
38
42
46
%REF5V
VHCHmax
Max. Voltage for NO Highcut
62
66
70
%REF5V
VHCHstep
Step Resolution
5
8.4
12
%REF5V
VHCLmin
Min. Voltage for FULL Highcut
12
17
22
%VHCH
VHCLmax
Max. Voltage for FULL Highcut
28
33
38
%VHCH
VHCLstep
Step Resolution
2.2
4.2
6.2
%VHCH
Carrier and harmonic suppression at the output
α19
Pilot Signal f = 19KHz
40
50
dB
α38
Subcarrier f = 38KHz
75
dB
α57
Subcarrier f = 57KHz
62
dB
α76
Subcarrier f = 76KHz
90
dB
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VTR
Trigger Threshold 0) 1)
meas. with VPEAK = 0.9V
NBT = 111
( c )
30
( c )
mV
NBT = 110
( c )
35
( c )
mV
NBT = 101
( c )
40
( c )
mV
NBT = 100
( c )
45
( c )
mV
NBT = 011
( c )
50
( c )
mV
NBT = 010
( c )
55
( c )
mV
NBT = 001
( c )
60
( c )
mV
NBT = 000
( c )
65
( c )
mV



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