AD9954ASV Analog Devices Inc, AD9954ASV Datasheet - Page 35
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AD9954ASV
Manufacturer Part Number
AD9954ASV
Description
Manufacturer
Analog Devices Inc
Datasheet
1.AD9954ASV.pdf
(40 pages)
Specifications of AD9954ASV
Lead Free Status / RoHS Status
Not Compliant
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SUGGESTED APPLICATION CIRCUITS
SIGNAL
REFCLK
REF
Figure 32. Digitally Programmable Divide-by-N Function in PLL
Figure 31. Synchronized LO for Upconversion/Downconversion
FILTER
Figure 33. Frequency Agile Clock Generator
COMPARATOR
CMOS LEVEL CLOCK
AD9954
PHASE
TUNING WORD
AD9954 DDS
COMPARATOR
AD9954
ON-CHIP
AD9954
RF/IF INPUT
TUNING
WORD
LPF
IOUT
IOUT
FILTER
LOOP
LPF
LPF
MODULATED/
DEMODULATED
SIGNAL
VCO
Rev. B | Page 35 of 40
CRYSTAL
Figure 34. Two AD9954s Synchronized to Provide I and
Q Carriers with Independent Phase Offsets for Nulling
REFCLK
REFCLK
REFCLK
CRYSTAL OUT
FREQUENCY
FREQUENCY
TUNING
TUNING
WORD
WORD
AD9954 DDS
AD9954 DDS
SYNC_OUT
OFFSET
WORD 1
OFFSET
WORD 2
PHASE
PHASE
SYNC_IN
IOUT
IOUT
IOUT
IOUT
LPF
LPF
BASEBAND
BASEBAND
Q/Q-BAR
I/I-BAR
AD9954
RF OUT
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