Datasheet

AD9958 Data Sheet

Rev. B | Page 14 of 44

APPLICATION CIRCUITS

Figure 22. Phase Array Radar Using Precision Frequency/Phase Control from DDS in FMCW or Pulsed Radar Applications;

DDS Provides Either Continuous Wave or Frequency Sweep

Figure 23. Single-Sideband-Suppressed Carrier Upconversion

Figure 24. DDS in PLL Locking to Reference Offering Distribution with Fine Frequency and Delay Adjust Tuning

CH0

CH1

AD9958

REFCLK

PULSE

FILTER

ANTENNA

RADIATING

ELEMENTS

FILTER

05252-024

AD9958

I BASEBAND

Q BASEBAND

RF OUTPUT

REFCLK

CH1

CH0

AD8349

AD8348

AD8347

AD8346

ADL5390

PHASE

SPLITTER

05252-025

LOOP

FILTER

PHASE

COMPARATOR

VCO

LPF

AD9958

REFCLK

REFERENCE

CHARGE

PUMP

AD9510, AD9511, ADF4106

05252-026