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TUA6030 Datasheet(Folha de dados) 46 Page - Infineon Technologies AG

Nome de Peças. TUA6030
descrição  3-Band TV Tuner IC
Download  49 Pages
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Fbricantes  INFINEON [Infineon Technologies AG]
Página de início  http://www.infineon.com
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Reference
5 - 46
TUA6030, TUA6032
Wireless Components
Specification, July 2001
5.5
Measurement Circuits
5.5.1
Gain (GV) measurement in LOW band
GVHF
s
Zi >> 50 Ω => Vi = 2 x Vmeas = 80 dBµV
s
Vi = Vmeas + 6dB = 80 dBµV
s
V0 = V’meas + 16 dB (transformer ratio N1:N2 and transformer loss
s
Gv = 20 log(V0 / Vi)
5.5.2
Gain (GV) measurement in MID and HIGH bands
GUHF3
s
Vi = Vmeas = 70 dBµV
s
V0 = V’meas + 16 dB (transformer ratio N1:N2 and transformer loss
s
Gv = 20 log(V0 / Vi) + 1 dB (1 dB = insertion loss of balun)
50
spectrum
analyser
Device
under
Test
IFOUT
LOWIN
IFOUT
V'
meas
V
0
V
i
50
C
Transformer
N1 : N2 = 10 : 2 turns
N1
N2
50
V
V
meas
RMS
Votmeter
50
spectrum
analyser
Device
under
Test
IFOUT
MIDIN
HIGHIN
IFOUT
V'
meas
V
0
V
i
50
C
Transformer
N1 : N2 = 10 : 2 turns
N1
N2
50
V
V
meas
RMS
Votmeter
Balun
1:1
MIDIN
HIGHIN




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