參數(shù)資料
型號(hào): TDA7514
廠商: 意法半導(dǎo)體
英文描述: SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR
中文描述: 單芯片F(xiàn)M /調(diào)幅調(diào)諧立體聲解碼器和音頻處理器
文件頁數(shù): 19/74頁
文件大?。?/td> 604K
代理商: TDA7514
19/74
TDA7514
3.5 Noise Blanker
Table 7.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V
TR
BLTHL=PEAK+VBE+V
PROG
Trigger Threshold 1)
meas.with VPEAK=0.9V,
InGain=5.75dB
111
30
mV
OP
110
35
mV
OP
101
40
mV
OP
100
45
mV
OP
011
50
mV
OP
010
55
mV
OP
001
60
mV
OP
000
65
mV
OP
V
TRNOISE
BLTHH=PEAK+VBE+m*(PEAK-1.5V)+m*0.56V
noise controlled Trigger
Threshold meas.with
VPEAK=1.5V,
InGain=5.75dB
00
260
mV
OP
01
220
mV
OP
10
180
mV
OP
11
140
mV
OP
V
RECT
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)
V
OP
10
1.1
V
OP
01
1.8
V
OP
00
2.6
V
OP
V
RECT
FS
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
TS
FM
Suppression Pulse
Duration FM Signal
HOLDN in Testmode
00
38
μ
s
01
25.5
μ
s
10
32
μ
s
11
22
μ
s
V
RECTADJ
Noise rectifier discharge
(2) adjustment Signal
PEAK in Testmode
00
inf.
W
01
56
M
10
33
M
11
18
M
SR
PEAK
Noise rectifier (2) charge
Signal PEAK in Testmode
0
10
mV/
μ
s
1
20
mV/
μ
s
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