MAX5893EGK MAXIM [Maxim Integrated Products], MAX5893EGK Datasheet

MAX5893EGK

Manufacturer Part Number

MAX5893EGK

Description

12-Bit, 500Msps Interpolating and Modulating Dual DAC with CMOS Inputs

Manufacturer

MAXIM [Maxim Integrated Products]

Datasheet

1.MAX5893EGK.pdf (32 pages)

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The MAX5893 programmable interpolating, modulating,

500Msps, dual digital-to-analog converter (DAC) offers

superior dynamic performance and is optimized for high-

performance wideband, single-carrier transmit applica-

tions. The device integrates a selectable 2x/4x/8x

interpolating filter, a digital quadrature modulator, and

dual 12-bit high-speed DACs on a single integrated cir-

cuit. At 30MHz output frequency and 500Msps update

rate, the in-band SFDR is 84dBc while consuming 1.1W.

The device also delivers 72dB ACLR for single-carrier

WCDMA at a 61.44MHz output frequency.

The selectable interpolating filters allow lower input data

rates while taking advantage of the high DAC update

rates. These linear-phase interpolation filters ease

reconstruction filter requirements and enhance the

passband dynamic performance. Individual offset and

gain programmability allow the user to calibrate out local

oscillator (LO) feedthrough and sideband suppression

errors generated by analog quadrature modulators.

The MAX5893 features a f

modulator. This modulator generates a quadrature-mod-

ulated 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 f

The MAX5893 features a standard 1.8V CMOS, 3.3V tol-

erant 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 interpolating fil-

ters, f

with image rejection, channel gain and offset adjustment,

and offset binary or two’s complement data interface.

Pin-compatible 14- and 16-bit devices are also available.

Refer to the MAX5894** data sheet for the 14-bit version

and the MAX5895 data sheet for the 16-bit version.

Base Stations: 3G UMTS, CDMA, and GSM

Broadband Wireless Transmitters

Broadband Cable Infrastructure

Instrumentation and Automatic Test Equipment (ATE)

Analog Quadrature Modulation Architectures

19-3546; Rev 0; 2/05

Pin Configuration appears at end of data sheet.

SPI is a trademark of Motorola, Inc.

cdma2000 is a registered trademark of Telecommunications

Industry Association.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12-Bit, 500Msps Interpolating and Modulating

/ 2, f

/ 4 or no digital quadrature modulation

________________________________________________________________ Maxim Integrated Products

General Description

/ 4 digital image-reject

Applications

/ 2 or f

Dual DAC with CMOS Inputs

/ 4.

♦ 72dB ACLR at f

♦ Meets 3G UMTS, cdma2000

♦ Noise Spectral Density = -151dBFS/Hz at

♦ 90dBc SFDR at Low-IF Frequency (10MHz)

♦ 86dBc SFDR at High-IF Frequency (50MHz)

♦ Low Power: 511mW (f

♦ User Programmable

♦ EV Kit Available (Order the MAX5895EVKIT)

*EP = Exposed paddle.

**Future product—contact factory for availability.

MAX5893EGK -40°C to +85°C

MAX5893

MAX5894**

MAX5895

WCDMA)

Selectable 2x, 4x, or 8x Interpolating Filters

Selectable Real or Complex Modulator Operation

Selectable Modulator LO Frequency: OFF, f

or f

Selectable Output Filter: Lowpass or Highpass

Channel Gain and Offset Adjustment

DATACLK

OUT

PART

PORT A

PORT B

PART

<0.01dB Passband Ripple

>99dB Stopband Rejection

DATA

= 16MHz

= 122MHz)

/ 4

RESOLUTION

TEMP RANGE

(BITS)

OUT

Ordering Information

= 61.44MHz (Single-Carrier

CLK

Simplified Diagram

DAC UPDATE

RATE (Msps)

= 100MHz)

(10mm x 10mm)

PIN-PACKAGE

Selector Guide

, GSM Spectral Masks

68 QFN-EP*

500

Features

DAC

LOGIC

G6800-4

INPUT

CMOS

CODE

PKG

OUTI

OUTQ

/ 2,

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