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參數資料
型號: TUA6045-2
廠商: INFINEON TECHNOLOGIES AG
元件分類: 調諧器
英文描述: 3-BAND, VIDEO TUNER, QCC48
封裝: VQFN-48
文件頁數: 58/64頁
文件大小: 890K
代理商: TUA6045-2
Data Sheet
61
Revision 3.1, 2006-12-19
TUA 6045-2
TAIFUN 3
Reference
5.6.5
Noise figure (NF) measurement in MID and HIGH bands
Figure 13
Noise figure (NF) measurement in MID and HIGH bands
5.6.6
Cross modulation measurement in LOW band
Figure 14
Cross modulation measurement in LOW band
V’
meas = V0 - 17 dB (transformer ratio N1:N2 and transformer loss)
wanted output signal at f
pix, Vo = 100 dBV
unwanted output signal at f
snd
Device
under
Test
SAWOUT
MIDIN
HIGHIN
SAWOUT
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)
IF filter
50
modulation
analyser
Hybrid
A
B
C
D
Device
under
Test
SAWOUT
LOWIN
SAWOUT
V
o
50
50
50
C
Transformer
N1 : N2 = 10 : 2 turns
N1
N2
wanted
signal
source
50
V
V'
meas
RMS
Voltmeter
unwanted
signal source
AM = 80%, 1 kHz
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