參數(shù)資料
型號: TUA6034-V
廠商: INFINEON TECHNOLOGIES AG
英文描述: MB 10C 10#20 PIN PLUG
中文描述: 3波段數(shù)字電視/設置機頂盒調諧器IC
文件頁數(shù): 57/61頁
文件大?。?/td> 1281K
代理商: TUA6034-V
Specification
57
V 2.5, 2004-04-28
TUA6034, TUA6036
Reference
4.5.5
Noise figure (NF) measurement in MID and HIGH bands
Figure 14
Noise figure (NF) measurement in MID and HIGH bands
4.5.6
Cross modulation measurement in LOW band
Figure 15
Cross modulation measurement in LOW band
Z
i
>> 50
=> V
i
= 2 x V
meas
V’
meas
= V
0
- 16 dB (transformer ratio N1:N2 and transformer loss)
wanted output signal at f
pix
, V
o
= 100 dBμV
unwanted output signal at f
snd
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 = 80 %, 1 kHz
wanted
signal
source
18 dB
attenuator
50
V
V
meas
RMS
Voltmeter
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