AD9854ASVZ

Product Summary

The AD9854ASVZ is a digital synthesizer. It is a highly integrated device that uses advanced DDS technology, coupled with two internal high speed, high performance quadrature DACs to form a digitally programmable I and Q synthesizer function. When referenced to an accurate clock source, the AD9854ASVZ generates highly stable, frequency-phase, amplitude-programmable sine and cosine outputs that can be used as an agile LO in communications, radar, and many other applications. The innovative high speed DDS core of the AD9854ASVZ provides 48-bit frequency resolution (1 μHz tuning resolution with 300 MHz SYSCLK). Maintaining 17 bits ensures excellent SFDR. The applications of the AD9854ASVZ include Agile, quadrature LO frequency synthesis, Programmable clock generators, FM chirp source for radar and scanning systems, Test and measurement equipment and Commercial and amateur RF exciters.

Parametrics

AD9854ASVZ absolute maximum ratings: (1)Maximum Junction Temperature: 150℃; (2)VS: 4 V; (3)Digital Inputs: -0.7 V to +VS ; (4)Digital Output Current: 5 mA; (5)Storage Temperature Range: -65 to +150℃; (6)Operating Temperature Range: -40 to +85℃; (7)Lead Temperature (Soldering, 10 sec): 300℃; (8)Maximum Clock Frequency (ASVZ): 300 MHz; (9)Maximum Clock Frequency (ASTZ): 200 MHz.

Features

AD9854ASVZ features: (1)300 MHz internal clock rate; (2)FSK, BPSK, PSK, chirp, AM operation; (3)Dual integrated 12-bit digital-to-analog converters (DACs); (4)Ultrahigh speed comparator, 3 ps rms jitter; (5)Excellent dynamic performance 80 dB SFDR at 100 MHz (±1 MHz) AOUT; (6)4× to 20× programmable reference clock multiplier; (7)Dual 48-bit programmable frequency registers; (8)Dual 14-bit programmable phase offset register ; (9)12-bit programmable amplitude modulation and on/off output shaped keying function; (10)Single-pin FSK and BPSK data interfaces; (11)PSK capability via input/output interface; (12)Linear or nonlinear FM chirp functions with single-pin.

Diagrams