AD9914S中文資料亞德諾數(shù)據(jù)手冊PDF規(guī)格書

GENERAL DESCRIPTION

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 frequency-

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.

The AD9914S-CSL is specified to operate over the extended industrial

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.

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.

FEATURES

? 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

? PLL REF CLK multiplier

? Phase modulation capability

? Amplitude modulation capability

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

? Polar modulators

? Fast frequency hopping