參數(shù)資料
型號: TUA1030
廠商: INFINEON TECHNOLOGIES AG
元件分類: 調(diào)諧器
英文描述: 3-BAND, VIDEO TUNER, PDSO24
封裝: PLASTIC, TSSOP-24
文件頁數(shù): 26/33頁
文件大?。?/td> 575K
代理商: TUA1030
Reference
5 - 32
TUA1030
preliminary
Wireless Components
Confidential
Specification, January 2002
5.3.5
Noise figure (NF) measurement in MID and HIGH bands
NFUHF25U
5.3.6
Cross modulation measurement in LOW band
XVHF25U
s
Zi >> 50 => Vi = 2 x Vmeas
s
wanted output signal at fpix, Vo = 100 dBV
s
unwanted output signal at fsnd
Device
under
Test
IFOUT
Balun
1:1
Noise
Source
loss of balun = 1 dB
NF = NFmeas - loss of balun (dB)
Noise
Figure
Meter
MID/
HIGHIN
MID/
HIGHIN
Hybrid
A
B
C
D
Device
under
Test
IFOUT
LOWIN
V
i
50
50
50
unwanted
signal
source
AM = 30 %
wanted
signal
source
50
V
meas
RMS
Votmeter
V
o
38.9 MHz
50
modulation
analyser
18 dB
attenuator
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