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TDA7514 bảng dữ liệu(PDF) 19 Page - STMicroelectronics

tên linh kiện TDA7514
Giải thích chi tiết về linh kiện  SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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TDA7514 bảng dữ liệu(HTML) 19 Page - STMicroelectronics

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TDA7514
3.5 Noise Blanker
Table 7.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VTR
BLTHL=PEAK+VBE+VPROG
Trigger Threshold 1)
meas.with VPEAK=0.9V,
InGain=5.75dB
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
BLTHH=PEAK+VBE+m*(PEAK-1.5V)+m*0.56V
noise controlled Trigger
Threshold meas.with
VPEAK=1.5V,
InGain=5.75dB
00
260
mVOP
01
220
mVOP
10
180
mVOP
11
140
mVOP
VRECT
Rectifier Voltage with
InGain=5.75dB
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
with VMPX=500mVrms &
InGain=5.75dB
11
0.9(off)
VOP
10
1.1
VOP
01
1.8
VOP
00
2.6
VOP
VRECTFS
Fieldstrength controlled
Rectifier Voltage
meas.with VMPX=0mV,
VLEVEL<< VSBL (fully
mono)
11
0.9(off)
V
10
1.1
V
01
1.5
V
00
2.8
V
TSFM
Suppression Pulse
Duration FM Signal
HOLDN in Testmode
00
38
µs
01
25.5
µs
10
32
µs
11
22
µs
VRECTADJ
Noise rectifier discharge
(2) adjustment Signal
PEAK in Testmode
00
inf.
W
01
56
M
Ω
10
33
M
Ω
11
18
M
Ω
SRPEAK
Noise rectifier (2) charge
Signal PEAK in Testmode
010
mV/
µs
120
mV/
µs



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