AD9954/PCBZ Analog Devices Inc, AD9954/PCBZ Datasheet - Page 35

• Manufacturer Part Number: AD9954/PCBZ
• Description: BOARD EVAL FOR 9954
• Manufacturer: Analog Devices Inc
• Series: AgileRF™r

Specifications of AD9954/PCBZ

• Main Purpose: Timing, Direct Digital Synthesis (DDS)
• Embedded: No
• Utilized Ic / Part: AD9954
• Primary Attributes: 14-Bit DAC, 32-Bit Tuning Word Width
• Secondary Attributes: 400MHz, Graphical User Interface
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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