Rainbow-electronics MAX5858 User Manual download pdf

General Description

The MAX5858 dual, 10-bit, 300Msps digital-to-analog con-

verter (DAC) provides superior dynamic performance in

wideband communication systems. The MAX5858 inte-

grates two 10-bit DAC cores, 2x/4x programmable digital

interpolation filters, and a 1.24V reference. The MAX5858

supports single-ended and differential modes of operation.

The MAX5858 dynamic performance is maintained over

the entire power-supply operating range of 2.7V to 3.3V.

The analog outputs support a compliance voltage of -1.0V

to +1.25V.

The 4x/2x programmable interpolation filters feature

excellent passband distortion and noise performance.

Interpolating filters minimize the design complexity of

analog reconstruction filters while lowering data bus

and clock speeds of the digital interface. To reduce the

I/O pin count, the DAC can also operate in interleave

data mode. This allows the MAX5858 to be updated on

a single 10-bit bus.

The MAX5858 features digital control of channel gain

matching to within ±0.4dB in 16 0.05dB steps. Channel

matching improves sideband suppression in analog

quadrature modulation applications. The on-chip 1.24V

bandgap reference includes a control amplifier that

allows external full-scale adjustments of both channels

through a single resistor. The internal reference can be

disabled and an external reference may be applied for

high-accuracy applications.

The MAX5858 features full-scale current outputs of 2mA

to 20mA and operates from a 2.7V to 3.3V single sup-

ply. The DAC supports three modes of power-control

operation: normal, low-power standby, and complete

power-down. In power-down mode, the operating

current is reduced to 1µA.

The MAX5858 is packaged in a 48-pin TQFP with exposed

paddle (EP) for enhanced thermal dissipation and is spec-

ified for the extended (-40°C to +85°C) temperature range.

Applications

Communications

SatCom, LMDS, MMDS, HFC, DSL, WLAN,

Point-to-Point Microwave Links

Wireless Base Stations

Direct Digital Synthesis

Instrumentation/ATE

Features

♦ 10-Bit Resolution, Dual DAC

♦ 300Msps Update Rate

♦ Integrated 4x/2x Interpolating Filters

♦ 2.7V to 3.3V Single Supply

♦ Full Output Swing and Dynamic Performance at

2.7V Supply

♦ Superior Dynamic Performance

75dBc SFDR at f

OUT

= 20MHz

UMTS ACLR = 63dB at f

OUT

= 30.7MHz

♦ Programmable Channel-Gain Matching

♦ Integrated 1.24V Low-Noise Bandgap Reference

♦ Single-Resistor Gain Control

♦ Interleave Data Mode

♦ Differential Clock Input Modes

♦ EV Kit Available—MAX5858 EV Kit

MAX5858

Dual, 10-Bit, 300Msps, Current-Output DAC with

4x/2x/1x Interpolation Filters

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-2879; Rev 0; 7/03

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

MAX5858ECM -40°C to +85°C 48 TQFP-EP*

13 14 15 16 17 18 19 20 21 22

39404142434445464748

DA9/PD

DA8/DACEN

DA7/F2EN

DA3/G1

DA4/G2

NOTE: EXPOSED PADDLE CONNECTED TO GND.

DGND

DA5/G3

DA6/F1EN

DA2/G0

DGND

IDE

CLK

DB4

CGND

CLKXN

CLKXP

CGND

I.C.

REFO

REFR

OUTNA

AGND

OUTPB

OUTNB

DGND

OUTPA

DB2

DA0

DB1

N.C.

DB0

DB3

DB5

DB6

DB7

DB8

DB9

DA1

MAX5858

TQFP-EP

REN

Pin Configuration

*EP = Exposed paddle.

1 2 3 4 5 6 ... 22 23

Summary of Contents

Page 1 - Pin Configuration

General DescriptionThe MAX5858 dual, 10-bit, 300Msps digital-to-analog con-verter (DAC) provides superior dynamic performance inwideband communication

Page 2 - ELECTRICAL CHARACTERISTICS

MAX5858Dual, 10-Bit, 300Msps, Current-Output DAC with4x/2x/1x Interpolation Filters 10 _______________________________________________________________

Page 3