AD9784

www.DataSheet4U.com 14-Bit, 200 MSPS/500 MSPS TxDAC+® with 2×/4×/8× Interpolation and Signal Processing Preliminary Technical Data FEATURES 14-bit resolution, 200 MSPS input data rate Selectable 2×/4×/8× interpolation filters Selectable fDAC/2, fDAC/4, fDAC/8 modulation modes Single or dual-channel signal processing Selectable image rejection Hilbert transform Flexible calibration engine Direct IF transmission features Serial control interface Versatile clock and data interface SFDR: 90 dBc @10 MHz WCDMA ACLR = 80 dBc @ 40 MHz IF DNL = ±0.75 LSB INL = ±1.5 LSB 3.3 V compatible digital Interface On-chip 1.2 V reference 80-lead thermally enhanced TQFP package APPLICATIONS Digital quadrature modulation architectures Multicarrier WCDMA, GSM, TDMA, DCS, PCS, CDMA Systems AD9784 PRODUCT DESCRIPTION The AD9784 is a 14-bit, high speed, CMOS DAC with 2×/4×/8× interpolation and signal processing features tuned for communications applications. It offers state of the art distortion and noise performance. The AD9784 was developed to meet the demanding performance requirements of multicarrier and third generation base stations. The selectable interpolation filters simplify interfacing to a variety of input data rates while also taking advantage of oversampling performance gains. The modulation modes allow convenient bandwidth placement and selectable sideband suppression. The flexible clock interface accepts a variety of input types such as 1 V p-p sine wave, CMOS, and LVPECL in single e...