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TDA6503 数据表(PDF) 26 Page - NXP Semiconductors

部件名 TDA6503
功能描述  5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
PDF  44 Pages
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

TDA6503 数据表(HTML) 26 Page - NXP Semiconductors

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2000 Mar 16
26
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for
cable TV and VCR 2-band tuners
TDA6502; TDA6502A;
TDA6503; TDA6503A
handbook, full pagewidth
FCE581
UHFIN2
Vi
50
Ω
27
Ω
50
Ω
50
Ω
V
UHFIN1 IFOUT
e
Vmeas
RMS
voltmeter
spectrum
analyzer
Vo
D.U.T.
V'meas
signal
source
50
Ω
A
B
C
D
HYBRID
Fig.16 Gain (Gv) measurement in UHF band.
Loss (in hybrid) = 1 dB.
Vi =Vmeas − loss (in hybrid) = 70 dBµV.
Vo =V’meas ×
Gv = 20 log
50
27
+
50
-------------------
V
o
V
i
------
handbook, full pagewidth
FCE582
27
Ω
UHFIN
UHFIN
IFOUT
D.U.T.
NOISE
SOURCE
NOISE
FIGURE
METER
50
Ω
A
B
C
D
HYBRID
Fig.17 Noise figure (NF) measurement in bands UHF.
Loss (in hybrid) = 1 dB.
NF = NFmeas − loss (in hybrid).



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