Direct Digital Synthesizers (DDS) and Modulators, Analog Devices
A Direct Digital Synthesizer (DDS) is versatile device are used for the creation of arbitrary analogue waveforms from a fixed-frequency reference clock. They can be used in many application areas such as signal generation, communication systems, function generators and sound synthesizers.
Feature
1 GSPS internal clock speed (up to 400 MHz analog output)
Integrated 1 GSPS, 14-bit DAC
0.23 Hz or better frequency resolution
Phase noise ≤ −125 dBc/Hz at 1 kHz offset (400 MHz carrier)
Excellent dynamic performance with >80 dB narrow-band SFDR
Serial input/output (I/O) control
Automatic linear or arbitrary frequency, phase, and amplitude sweep capability
8 frequency and phase offset profiles
Sin(x)/(x) correction (inverse sinc filter)
1.8 V and 3.3 V power supplies
Software and hardware controlled power-down
100-lead TQFP_EP package
Integrated 1024 word × 32-bit RAM
PLL REFCLK multiplier
Parallel datapath interface
Internal oscillator can be driven by a single crystal
Phase modulation capability
Amplitude modulation capability
Multichip synchronization
Applications
Agile local oscillator (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
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
