MAX2839ASEVKIT+【PDF 1/39 页】KIT EVAL FOR MAX2839A WLP

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19-4588; Rev 1; 5/10

ATION

EVALU

AVAILA

KIT

BLE

2.3GHz to 2.7GHz MIMO Wireless

Broadband RF Transceiver

General Description

The MAX2839AS direct conversion, zero-IF, RF transceiver

is designed specifically for 2.3GHz to 2.7GHz 802.16e

MIMO mobile WiMAX? systems. The device incorpo-

rates one transmitter and two receivers, with > 40dB iso-

lation between each receiver. The MAX2839AS

completely integrates all circuitry required to implement

the RF transceiver function, providing RF to baseband

receive path, and baseband to RF transmit path, VCO,

frequency synthesizer, crystal oscillator, and base-

band/control interface. The device includes a fast-set-

tling sigma-delta RF synthesizer with smaller than 40Hz

frequency steps and a crystal oscillator that allows the

use of a low-cost crystal in place of a TCXO. The trans-

ceiver IC also integrates circuits for on-chip DC-offset

cancellation, I/Q error, and carrier leakage detection

circuits. An internal transmit to receive loopback mode

allows for receiver I/Q imbalance calibration. The local

oscillator I/Q quadrature phase error can be digitally

corrected in approximately 0.125° steps. Only an RF

bandpass filter (BPF), crystal, RF switch, PA, and a

small number of passive components are needed to

form a complete wireless broadband RF radio solution.

The MAX2839AS completely eliminates the need for an

external SAW filter by implementing on-chip program-

mable monolithic filters for both the receiver and trans-

mitter, for all 2GHz and 802.16e profiles and WiBro. The

baseband filters along with the Rx and Tx signal paths

are optimized to meet the stringent noise figure and lin-

earity specifications. The device supports up to 2048

FFT OFDM and implements programmable channel fil-

ters for 3.5MHz to 20MHz RF channel bandwidths. The

transceiver requires only 2μs Tx-Rx switching time. The

IC is available in a small wafer-level package (WLP)

measuring 5.16mm x 3.66mm x 0.5mm.

Applications

802.16e Mobile WiMAX Systems

Korean WiBro Systems

Features

o 2.3GHz to 2.7GHz Wideband Operation

o Dual Receivers for MIMO, Single Transmitter

o Complete RF Transceiver, PA Driver, and Crystal

Oscillator

3.5dB Rx Noise Figure on Each Receiver with

Balun

-35dB Rx EVM for 64QAM Signal

0dBm Linear OFDM Transmit Power (64QAM)

-70dBr Tx Spectral Emission Mask

-35dBc LO Leakage

Automatic Rx DC Offset Correction

Monolithic Low-Noise VCO with -39dBc

Integrated Phase Noise

Programmable Rx I/Q Lowpass Channel Filters

Programmable Tx I/Q Lowpass Anti-Aliasing

Filters

Sigma-Delta Fractional-N PLL with 28.61Hz

Minimum Step Size

62dB Tx Gain Control Range with 1dB Step

Size, Digitally Controlled

95dB Rx Gain Control Range with 1dB Step

Size, Digitally Controlled

60dB Analog RSSI Instantaneous Dynamic

Range

4-Wire SPI? Digital Interface

I/Q Analog Baseband Interface

Digital Tx/Rx Mode Control

Digitally Tuned Crystal Oscillator

On-Chip Digital Temperature Sensor Readout

o +2.7V to +3.6V Transceiver Supply

o Low-Power Shutdown Current

o Small WLP Package (5.16mm x 3.66mm x 0.5mm)

Ordering Information

Proprietary Wireless Broadband Systems

802.11g or n WLAN with MRC or MIMO Down Link

PART

MAX2839ASEWO+T

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

73 WLP

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

T = Tape and reel.

WiMAX is a trademark of the WiMAX Forum.

SPI is a trademark of Motorola, Inc.

Bump Configuration and Typical Operating Circuit appear 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.

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