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AD9953 Scheda tecnica(PDF) 29 Page - Analog Devices

Il numero della parte AD9953
Spiegazioni elettronici  400 MSPS, 14-Bit, 1.8 V CMOS Direct Digital Synthesizer
PDF  32 Pages
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD9953 Scheda tecnica(HTML) 29 Page - Analog Devices

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AD9953
Rev. A | Page 29 of 32
SUGGESTED APPLICATION CIRCUITS
LPF
AD9953
REFCLK
RF/IF INPUT
MODULATED/
DEMODULATED
SIGNAL
Figure 27. Synchronized LO for Up Conversion/Down Conversion
FILTER
PHASE
COMPARATOR
LOOP
FILTER
AD9953
TUNING
WORLD
REF
SIGNAL
VCO
Figure 28. Digitally Programmable Divide-by-N Function in PLL
TUNING
CRYSTAL
FREQUENCY
WORD
PHASE
WORD 2
BASEBAND
FREQUENCY
OFFSET
I/I-BAR
TUNING
WORD
PHASE
ET
D 1
OFFS
WOR
Q/Q-BAR
BASEBAND
SYNC IN
AD9953 DDS
REFCLK
REFCLK
REFCLK
LPF
SYNC OUT
CRYSTAL OUT
AD9953 DDS
IOUT
IOUT
LPF
IOUT
IOUT
RF OUT
ith Independent Phase Offsets for Nulling
Figure 29. Two AD9953s Synchronized to Provide I and
Q Carriers w



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