MAX5890EGK+D【PDF 1/16 页】IC DAC 14BIT LVDS 600MSPS 68-QFN

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General Description

The MAX5890 advanced 14-bit, 600Msps, digital-to-

analog converter (DAC) meets the demanding perfor-

mance requirements of signal synthesis applications

found in wireless base stations and other communica-

tions applications. Operating from 3.3V and 1.8V sup-

plies, the MAX5890 DAC supports update rates of

600Msps using high-speed LVDS inputs while consum-

ing only 297mW of power and offers exceptional

dynamic performance such as 80dBc spurious-free

dynamic range (SFDR) at fOUT = 30MHz.

The MAX5890 utilizes a current-steering architecture that

supports a 2mA to 20mA full-scale output current range,

and produces -2dBm to -22dBm full-scale output signal

levels with a double-terminated 50

load. The MAX5890

features an integrated 1.2V bandgap reference and con-

trol amplifier to ensure high-accuracy and low-noise per-

formance. A separate reference input (REFIO) allows for

the use of an external reference source for optimum flexi-

bility and improved gain accuracy.

The MAX5890 digital inputs accept LVDS voltage lev-

els, and the flexible clock input can be driven differen-

tially or single-ended, AC- or DC-coupled. The

MAX5890 is available in a 68-pin QFN package with an

exposed paddle (EP) and is specified for the extended

(-40°C to +85°C) temperature range.

Refer to the MAX5891 and MAX5889 data sheets for

pin-compatible 16-bit and 12-bit versions of the

MAX5890.

Applications

Base Stations: Single/Multicarrier UMTS,

CDMA, GSM

Communications: Fixed Broadband Wireless

Access, Point-to-Point Microwave

Direct Digital Synthesis (DDS)

Cable Modem Termination Systems (CMTS)

Automated Test Equipment (ATE)

Instrumentation

Features

600Msps Output Update Rate

Low Noise Spectral Density: -162dBFS/Hz at

fOUT = 36MHz

Excellent SFDR and IMD Performance

SFDR = 80dBc at fOUT = 30MHz (to Nyquist)

SFDR = 68dBc at fOUT = 130MHz (to Nyquist)

IMD = -95dBc at fOUT = 30MHz

IMD = -70dBc at fOUT = 130MHz

ACLR = 73dB at fOUT = 122.88MHz

2mA to 20mA Full-Scale Output Current

LVDS-Compatible Digital Inputs

On-Chip 1.2V Bandgap Reference

Low 297mW Power Dissipation at 600Msps

Compact (10mm x 10mm) QFN-EP Package

Evaluation Kit Available (MAX5891EVKIT)

MAX5890

14-Bit, 600Msps, High-Dynamic-Performance

DAC with LVDS Inputs

________________________________________________________________ Maxim Integrated Products

Ordering Information

19-3619; Rev 1; 3/07

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.

EVALUATION

KIT

AVAILABLE

PART

TEMP RANGE

PIN-

PACKAGE

PKG

CODE

MAX5890EGK-D

-40

°C to +85°C 68 QFN-EP*

G6800-4

MAX5890EGK+D

-40

°C to +85°C 68 QFN-EP*

G6800-4

MAX5890

1.2V

REFERENCE

REFIO

DACREF

FSADJ

CLK

INTERFACE

600MHz

14-BIT DAC

LATCH

LVDS

RECEIVER

D0–D13

LVDS DATA

INPUTS

POWER

DOWN

CLKP

CLKN

OUTP

OUTN

Functional Diagram

PART

RESOLUTION

(BITS)

UPDATE RATE

(Msps)

LOGIC INPUT

MAX5889

600

LVDS

MAX5890

600

LVDS

MAX5891

600

LVDS

Selector Guide

*EP = Exposed paddle.

D = Dry pack.

+Denotes lead-free package.

Pin Configuration appears at end of data sheet.

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