MAXIM MAX5898 16-Bit, 500Msps, Interpolating and Modulating Dual DAC with Interleaved LVDS Inputs Data Sheet

19-3756; Rev 2; 8/10

EVALUATION KIT AVAILABLE

16-Bit, 500Msps, Interpolating and Modulating Dual DAC with Interleaved LVDS Inputs

General Description Features 2x INTERPOLATING

The MAX5898 programmable interpolating, modulating, 71d B ACLR at f OUT = 61.44MHz (Four-Carrier FILTERS 500Msps, dual digital-to-analog converter (DAC) offers WCDMA)

ODULATOR

superior dynamic performance and is optimized for high- Meets Multicarrier UMTS, cdma2000®, GSM

performance wideband, single- and multicarrier transmit Spectral Masks (f OUT = 122MHz)

INTERPOLATING

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

Noise Spectral Density = -160d BFS/Hz at FILTERS

interpolating filter, a digital quadrature modulator, and

f OUT = 16MHz

dual 16-bit, high-speed DACs on a single integrated cir-

DATA SYNCH

90d Bc SFDR at Low-IF Frequency (10MHz)

cuit. At 30MHz output frequency and 500Msps update AND DEM UX

rate, the in-band SFDR is 81d Bc, while only consuming 88d Bc SFDR at High-IF Frequency (50MHz)

1.2W. The device also delivers 71d B ACLR for four- Low Power: 831m W (f CLK = 250MHz) carrier WCDMA at a 61.44MHz output frequency.

User Programmable The selectable interpolating filters allow lower input data Selectable 2x, 4x, or 8x Interpolating Filters rates while taking advantage of the high DAC update < 0.01d B Passband Ripple rates. These linear-phase interpolation filters ease recon- > 95d B Stopband Rejection Selectable Real or Complex Modulator Operation

struction filter requirements and enhance the passband

Selectable Modulator LO Frequency: OFF, f IM / 2,

dynamic performance. Each channel includes offset and

or f IM / 4

gain programmability, allowing the user to calibrate out

Selectable Output Filter: Lowpass or Highpass

local oscillator (LO) feedthrough and sideband suppres-

Per Channel Gain and Offset Adjustment

sion errors generated by analog quadrature modulators.

EV Kit Available (Order the MAX5898EVKIT)

The MAX5898 features a f IM / 4 digital image-reject modulator. This modulator generates a quadrature-mod- Ordering Information ulated IF signal that can be presented to an analog I/Q

modulator to complete the upconversion process. A PART TEMP RANGE PIN-PACKAGE

second digital modulation mode allows the signal to be

68 QFN-EP*

frequency-translated with image pairs at f IM / 2 or f IM / 4. M AX 5898E GK+ D -40°C to +85°C

(10mm x 10mm)

The MAX5898 features a standard LVDS interface for

68 QFN-EP*

low electromagnetic interference (EMI). Interleaved M AX 5898E GK- D -40°C to +85°C

(10mm x 10mm)

data is applied through a single 16-bit bus. A 3.3V

+Denotes a lead(Pb)-free/Ro HS-compliant package.

SPI™ port is provided for mode configuration. The pro-

*EP = Exposed paddle.

grammable modes include the selection of 2x/4x/8x

D = Dry pack

interpolating filters, f IM / 2, f IM / 4 or no digital quadra-

ture modulation with image rejection, individual channel Selector Guide

gain and offset adjustment, and offset binary or two’s-

complement data interface. RESOLUTION DAC UPDATE INPUT

(BITS) RATE (Msps) LOGIC

Compatible versions with CMOS interfaces and 12-, 14-,

and 16-bit resolutions are also available. Refer to the MAX5893 CMOS

MAX5893 data sheet for 12-bit CMOS, MAX5894 for 14- MAX5894 CMOS bit CMOS, and the MAX5895 for 16-bit CMOS versions.

MAX5895 CMOS MAX5898 LVDS

Applications

Base Stations: 3G Multicarrier UMTS, CDMA, and GSM Simplified Diagram Broadband Wireless Transmitters Broadband Cable Infrastructure OUTI

DACDATA PORT

Instrumentation and Automatic Test Equipment (ATE) Analog Quadrature Modulation Architectures

DATACLK DAC

SPI is a trademark of Motorola, Inc. cdma2000 is a registered trademark of Telecommunications Industry Association. Pin Configuration appears at end of data sheet.

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.