參數(shù)資料
型號： 935260618118
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO28
封裝： PLASTIC, SOT-341, SSOP-28
文件頁數(shù)： 18/44頁
文件大?。?/td> 241K
代理商： 935260618118
2000 Jan 24
25
Philips Semiconductors
Product specication
5 V mixers/oscillators and synthesizers for
cable TV and VCR 2-band tuners
TDA6402; TDA6402A;
TDA6403; TDA6403A
Fig.18 Cross modulation measurement in UHF band.
Vo =Vmeas ×
Wanted output signal at fRFW = 367.25 (801.25) MHz; Vo(w) = 100 dBV.
Measuring the level of the unwanted output signal Vo(u) causing 0.5% AM modulation in the wanted output signal; fRFU = 371.25 (805.75) MHz.
fOSC = 413 (847) MHz.
Filter characteristics: fC = 45.75 MHz, f3 dB(BW) = 1.4 MHz, f30 dB(BW) = 3.1 MHz.
50
22
+
50
-------------------
handbook, full pagewidth
50
50
50
50
ew
eu
unwanted
signal
source
wanted
signal
source
AM = 50%
1 kHz
MGE703
22
50
45.75 MHz
V
UHFIN
IFOUT
A
B
C
D
HYBRID
A
B
C
D
HYBRID
18 dB
attenuator
Vmeas
RMS
voltmeter
modulation
analyzer
Vo
FILTER
D.U.T.
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