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AD9952 View Datasheet(PDF) - Analog Devices

Part NameDescriptionManufacturer
AD9952 400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer ADI
Analog Devices ADI
AD9952 Datasheet PDF : 28 Pages
First Prev 21 22 23 24 25 26 27 28
SUGGESTED APPLICATION CIRCUITS
RF/IF INPUT
MODULATED/
DEMODULATED
SIGNAL
AD9952
LPF
REFCLK
Figure 27. Synchronized LO for Upconversion/Down Conversion
REF
SIGNAL
PHASE
COMPARATOR
LOOP
FILTER
FILTER
AD9952
VCO
TUNING
WORLD
Figure 28. Digitally Programmable Divide-by-N Function in PLL
AD9952
TUNING WORD
IOUT
LPF
AD9952 DDS
IOUT
LPF
AD9952
ON-CHIP
COMPARATOR
CMOS LEVEL CLOCK
Figure 29. Frequency Agile Clock Generator
FREQUENCY PHASE
TUNING
OFFSET
WORD
WORD 1
I/I-BAR
BASEBAND
REFCLK
SAW
CRYSTAL
IOUT
AD9952 DDS IOUT
LPF
REFCLK
CRYSTAL OUT SYNC OUT
RF OUT
SYNC IN
AD9952 DDS IOUT
LPF
IOUT
REFCLK
FREQUENCY
TUNING
WORD
PHASE
OFFSET
WORD 2
Q/Q-BAR
BASEBAND
Figure 30. Two AD9952s Synchronized to Provide I and
Q Carriers with Independent Phase Offsets for Nulling
Rev. 0 | Page 25 of 28
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