Data Sheet
AD9914S
Commercial Space
Product
3.5 GPSP Direct Digital Synthesizer with 12-Bit DAC
FEATURES
FUNCTIONAL BLOCK DIAGRAM
► 3.5 GSPS internal clock speed
► Integrated 12-bit DAC
► Frequency tuning resolution to 190 pHz
► 16-bit phase tuning resolution
► 12-bit amplitude scaling
► Programmable modulus
► Automatic linear and nonlinear frequency sweeping capability
► 32-bit parallel datapath interface
► 8 frequency/phase offset profiles
► Phase noise: −128 dBc/Hz (1 kHz offset at 1396 MHz)
► Wideband SFDR < −50 dBc
► Serial or parallel input/output control
► 1.8 V/3.3 V power supplies
► Software and hardware controlled power-down
► 88-lead LFCSP package
Figure 1.
► PLL REF CLK multiplier
► Phase modulation capability
GENERAL DESCRIPTION
► Amplitude modulation capability
The AD9914S-CSL is a direct digital synthesizer (DDS) featuring
a 12‑bit digital-to-analog converter (DAC). The AD9914S-CSL
uses advanced DDS technology, coupled with an internal high
speed, high performance DAC to form a digitally programmable,
complete high frequency synthesizer capable of generating a fre-
quency-agile analog output sinusoidal waveform at up to 1.4 GHz.
The AD9914S-CSL enables fast frequency hopping and fine tuning
resolution (64‑bit capable using programmable modulus mode).
The AD9914S-CSL also offers fast phase and amplitude hopping
capability. The frequency tuning and control words are loaded into
the AD9914S-CSL via a serial or parallel input/output port. The
AD9914S-CSL also supports a user defined linear sweep mode
of operation for generating linear swept waveforms of frequency,
phase, or amplitude. A high speed, 32-bit parallel data input port
is included, enabling high data rates for polar modulation schemes
and fast reprogramming of the phase, frequency, and amplitude
tuning words.
COMMERCIAL SPACE FEATURES
► Supports aerospace applications
► Wafer diffusion lot traceability
► Radiation lot acceptance test (RLAT)
► Total ionizing dose (TID)
► Radiation benchmark
► Single event latch-up (SEL)
APPLICATIONS
► Low Earth orbit (LEO) space payloads
► Agile LO frequency synthesis
► Programmable clock generators
► FM chirp source for radar and scanning systems
► Test and measurement equipment
► Acousto-optic device drivers
The AD9914S-CSL is specified to operate over the extended in-
dustrial temperature range (see the Absolute Maximum Ratings
section). Additional application and technical information can be
found in the Commercial Space Products Program brochure and
the AD9914 data sheet.
► Polar modulators
► Fast frequency hopping
Analog Devices is in the process of updating documentation to
provide terminology and language that is culturally appropriate. This
is a process with a wide scope and will be phased in as quickly as
possible. Thank you for your patience.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable "as is". However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to
change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
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