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TDA7412 Datasheet(PDF) 26 Page - STMicroelectronics

Part # TDA7412
Description  CARRADIO SIGNAL PROCESSOR
PDF  56 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7412 Datasheet(HTML) 26 Page - STMicroelectronics

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TDA7412
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s
4 selectable pulse suppression times for each mode
s
programmable noise rectifier charge/discharge current
2.4.2 ELECTRICAL CHARACTERISTICS
All parameters measured in FM mode if not otherwise specified.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VTR
Trigger Threshold 1)
meas.with
VPEAK=0.9V
111
30
mVOP
110
35
mVOP
101
40
mVOP
100
45
mVOP
011
50
mVOP
010
55
mVOP
001
60
mVOP
000
65
mVOP
VTRNOISE
noise controlled
Trigger Threshold
meas.with
VPEAK=1.5V
00
260
mVOP
01
220
mVOP
10
180
mVOP
11
140
mVOP
VRECT
Rectifier Voltage
VMPX=0mV
0.5
0.9
1.3
V
VMPX=50mV, f=150kHz
1.5
1.7
2.1
V
VMPX=200mV, f=150kHz
2
2.5
2.9
V
VRECTDEV Deviation dependent
Rectifier Voltage
meas.with
VMPX=500mV
(75kHz dev.)
11
10
01
00
0.5
0.9
1.7
2.5
0.9(off)
1.2
2.0
2.8
1.3
1.5
2.3
3.1
VOP
VOP
VOP
VOP
VRECTFS
Fieldstrength
controlled Rectifier
Voltage
meas.with
VMPX=0mV,
VLEVEL<< VSBL
(fully mono)
11
10
01
00
0.5
0.9
1.7
2.1
0.9(off)
1.4
1.9
2.4
1.3
1.5
2.3
3.1
V
V
V
V
TSFM
Suppression Pulse Duration FM
Signal HOLDN in
Testmode
00
01
10
11
38
25.5
32
22
µs
µs
µs
µs
TSAM
Suppression Pulse Duration AM
Signal HOLDN in
Testmode
00
01
10
11
1.2
800
1.0
640
ms
µs
µs
µs
VRECTADJ Noise rectifier discharge (2)
adjustment
Signal PEAK in
Testmode
00
01
10
11
0.3
0.8
1.3
2.0
V/ms
SRPEAK
Noise rectifier (2)
charge
Signal PEAK in
Testmode
0
1
10
20
mV/µs



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