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MAX5894 Datasheet 14-Bit/ 500Msps Interpolating and Modulating Dual DAC with CMOS Inputs

Manufacturer: Maxim Integrated (now Analog Devices)

General Description

The MAX5894 programmable interpolating, modulating, 500Msps, dual digital-to-analog converter (DAC) offers superior dynamic performance and is optimized for highperformance wideband, single-carrier transmit applications.

The device integrates a selectable 2x/4x/8x interpolating filter, a digital quadrature modulator, and dual 14-bit, high-speed DACs on a single integrated circuit.

At 30MHz output frequency and 500Msps update rate, the in-band SFDR is 86dBc while consuming 1.1W.

Overview

19-3631; Rev 2; 10/08 KIT ATION EVALU LE B A IL A AV www.DataSheet4U.

Key Features

  • a fIM/4 digital image-reject modulator. This modulator generates a quadrature-modulated IF signal that can be presented to an analog I/Q modulator to complete the upconversion process. A second digital modulation mode allows the signal to be frequency-translated with image pairs at fIM/2 or fIM/4. The MAX5894 features a standard 1.8V CMOS, 3.3V tolerant data input bus for easy interface. A 3.3V SPI™ port is provided for mode configuration. The programmable modes include the selection of 2x/4x/8x.