參數(shù)資料
型號(hào): TUA6024-2
廠(chǎng)商: INFINEON TECHNOLOGIES AG
元件分類(lèi): 調(diào)諧器
英文描述: 2-BAND, VIDEO TUNER, PDSO28
封裝: 1 MM HEIGHT, PLASTIC, TSSOP-28
文件頁(yè)數(shù): 31/40頁(yè)
文件大?。?/td> 693K
代理商: TUA6024-2
Reference
5 - 17
TUA6024-2
Wireless Components
Specification, July 2001
5.4.5
Noise Figure Test Set-up in HIGH
NFUHF2
5.4.6
Cross modulation Test Set-up in LOW/MID band
XVHF2
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 , 80 % AM modulated with 1 kHz
Device
under
Test
IFOUT
HIGHIN
IFOUT
C
Transformer
N1 : N2 = 10 : 2 turns
N1
N2
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
LOW/
MIDIN
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 = 80 %
wanted
signal
source
50
V
meas
RMS
Voltmeter
18 dB
attenuator
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