GENERAL DESCRIPTION

The AD9119/AD9129 are high performance, 11-/14-bit RF digital to-analog converters (DACs) supporting data rates up to 2.8 GSPS. The DAC core is based on a quad-switch architecture that enables dual-edge clocking operation, effectively increasing the DAC update rate to 5.6 GSPS when configured for Mix-Mode™ or 2× interpolation. The high dynamic range and bandwidth enable multicarrier generation up to 4.2 GHz.

FEATURES

DAC update rate: up to 5.6 GSPS

Direct RF synthesis at 2.8 GSPS data rate

  DC to 1.4 GHz in baseband mode

  DC to 1.0 GHz in 2× interpolation mode

  1.4 GHz to 4.2 GHz in Mix-Mode

Bypassable 2× interpolation

Excellent dynamic performance

Supports DOCSIS 3.0 wideband ACLR/harmonic performance

   8 QAM carriers: ACLR > 65 dBc

Industry-leading single/multicarrier IF or RF synthesis

  4-carrier W-CDMA ACLR at 2457.6 MSPS

   fOUT = 900 MHz, ACLR = 71 dBc (baseband mode)

   fOUT = 2100 MHz, ACLR = 68 dBc (Mix-Mode)

   fOUT = 2700 MHz, ACLR = 67 dBc (Mix-Mode)

Dual-port LVDS and DHSTL data interface

  Up to 1.4 GSPS operation

  Source synchronous DDR clocking with parity bit

Low power: 1.0 W at 2.8 GSPS (1.3 W at 5.6 GSPS)

APPLICATIONS

Broadband communications systems

  CMTS/VOD

  Wireless infrastructure: W-CDMA, LTE, point-to-point

Instrumentation, automatic test equipment (ATE)

Radars, jammers