參數(shù)資料
型號(hào): TUA6032
廠商: INFINEON TECHNOLOGIES AG
元件分類: 調(diào)諧器
英文描述: 3-BAND, VIDEO TUNER, PDSO38
封裝: PLASTIC, TSSOP-38
文件頁數(shù): 43/49頁
文件大?。?/td> 882K
代理商: TUA6032
Reference
5 - 48
TUA6030, TUA6032
Wireless Components
Specification, January 2002
5.5.5
Noise figure (NF) measurement in MID and HIGH bands
NFUHF3
5.5.6
Cross modulation measurement in LOW band
XVHF
s
Zi >> 50 => Vi = 2 x Vmeas
s
V’meas = V0 - 16 dB (transformer ratio N1:N2 and transformer loss)
s
wanted output signal at fpix, Vo = 100 dBV
s
unwanted output signal at fsnd
Device
under
Test
IFOUT
MIDIN
HIGHIN
IFOUT
C
Transformer
N1 : N2 = 10 : 2 turns
N1
N2
MIDIN
HIGHIN
Balun
1:1
Noise
Source
Noise
Figure
Meter
loss of balun = 1 dB
NF = NFmeas - loss of balun (dB)
V
38.9 MHz
50
modulation
analyser
Hybrid
A
B
C
D
Device
under
Test
IFOUT
LOWIN
IFOUT
V'
meas
V
0
V
i
50
50
50
RMS
Votmeter
C
Transformer
N1 : N2 = 10 : 2 turns
N1
N2
unwanted
signal
source
AM = 30 %
wanted
signal
source
50
V
meas
RMS
Votmeter
18 dB
attenuator
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