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TDA7406T 数据表(PDF) 24 Page - STMicroelectronics

部件名 TDA7406T
功能描述  CAR RADIO SIGNAL PROCESSOR
PDF  49 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7406T 数据表(HTML) 24 Page - STMicroelectronics

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TDA7406T
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NOISE BLANKER PART
Features:
s
AM and FM mode
s
internal 2nd order 140kHz high-pass filter for MPX path
s
internal rectifier and filters for AM-IF path
s
programmable trigger thresholds
s
trigger threshold dependent on high frequency noise with programmable gain
s
additional circuits for deviation- and fieldstrength-dependent trigger adjustment
s
4 selectable pulse suppression times for each mode
s
programmable noise rectifier charge/discharge current
Table 3. ELECTRICAL CHARACTERISTICS
All parameters measured in FM mode if not otherwise specified.
Symbol
Parameter
Test conditions
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



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