Rainbow-electronics MAX5890 User Manual download pdf

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

supplies, 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 f

OUT

= 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 50Ω load. The MAX5890

features an integrated +1.2V bandgap reference and

control amplifier to ensure high-accuracy and low-noise

performance. A separate reference input (REFIO) allows

for the use of an external reference source for optimum

flexibility 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

OUT

= 36MHz

♦ Excellent SFDR and IMD Performance

SFDR = 80dBc at f

OUT

= 30MHz (to Nyquist)

SFDR = 68dBc at f

OUT

= 130MHz (to Nyquist)

IMD = -93dBc at f

OUT

= 30MHz

IMD = -76dBc at f

OUT

= 130MHz

♦ ACLR = 73dB at f

OUT

= 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 1

Ordering Information

19-3619; Rev 0; 4/05

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

-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

12 600 LVDS

MAX5890

14 600 LVDS

MAX5891

16 600 LVDS

Selector Guide

*EP = Exposed paddle.

Pin Configuration appears at end of data sheet.

1 2 3 4 5 6 ... 14 15

DAC with LVDS Inputs 1

Summary of Contents

Page 1 - DAC with LVDS Inputs

General DescriptionThe MAX5890 advanced 14-bit, 600Msps, digital-to-analog converter (DAC) meets the demanding perfor-mance requirements of signal syn

Page 2

MAX5890Clock Inputs (CLKP, CLKN)To achieve the best possible jitter performance, theMAX5890 features flexible differential clock inputs(CLKP, CLKN) th

Page 3

Applications InformationClock InterfaceTo achieve the best possible jitter performance, theMAX5890 features flexible differential clock inputs(CLKP, C

Page 4

MAX5890Grounding, Bypassing, and Power-SupplyConsiderationsGrounding and power-supply decoupling strongly influ-ence the MAX5890 performance. Unwanted

Page 5

large ground planes in the PC board design to ensurethe highest dynamic performance of the DAC. Connectthe MAX5890 exposed paddle to the common connec

Page 6

MAX589014-Bit, 600Msps, High-Dynamic-PerformanceDAC with LVDS Inputs14 _______________________________________________________________________________

Page 7

MAX589014-Bit, 600Msps, High-Dynamic-PerformanceDAC with LVDS InputsMaxim cannot assume responsibility for use of any circuitry other than circuitry e

Page 8

MAX589014-Bit, 600Msps, High-Dynamic-PerformanceDAC with LVDS Inputs2 ________________________________________________________________________________

Page 9

MAX589014-Bit, 600Msps, High-Dynamic-PerformanceDAC with LVDS Inputs__________________________________________________________________________________

Page 10

MAX589014-Bit, 600Msps, High-Dynamic-PerformanceDAC with LVDS Inputs4 ________________________________________________________________________________

Page 11

MAX589014-Bit, 600Msps, High-Dynamic-PerformanceDAC with LVDS Inputs__________________________________________________________________________________

Page 12

MAX589014-Bit, 600Msps, High-Dynamic-PerformanceDAC with LVDS Inputs6 ________________________________________________________________________________

Page 13

MAX589014-Bit, 600Msps, High-Dynamic-PerformanceDAC with LVDS Inputs__________________________________________________________________________________

Page 14

MAX589014-Bit, 600Msps, High-Dynamic-PerformanceDAC with LVDS Inputs8 ________________________________________________________________________________

Page 15

Detailed DescriptionArchitectureThe MAX5890 high-performance, 14-bit, current-steer-ing DAC (see the Functional Diagram) operates withDAC update rates

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Rainbow-electronics MAX5890 User Manual

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Summary of Contents

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