AD9957
FEATURES
1 GSPS internal clock speed (up to 400 MHz analog output) Integrated 1 GSPS 14-bit DAC 250 MSPS input data rate Phase noise ≤
- 125 d Bc/Hz (400 MHz carrier @ 1 k Hz offset) Excellent dynamic performance >80 d B narrow-band SFDR 8 programmable profiles for shift keying Sin(x)/(x) correction (inverse sinc filter) Reference clock multiplier Internal oscillator for a single crystal operation Software and hardware controlled power-down Integrated RAM Phase modulation capability Multichip synchronization Easy interface to Blackfin SPORT Interpolation factors from 4× to 252× Interpolation DAC mode Gain control DAC Internal divider allows references up to 2 GHz 1.8 V and 3.3 V power supplies 100-lead TQFP_EP package
APPLICATIONS
HFC data, telephony, and video modems Wireless base station transmissions Broadband munications transmissions Internet telephony
GENERAL DESCRIPTION
The AD9957 functions as a universal I/Q modulator and agile upconverter for munications systems where cost,...
