MAX2051ETP+T【PDF 1/16 页】IC UP/DOWNCONVERSION MIXR 20TQFN

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19-4582; Rev 0; 4/09

SiGe, High-Linearity, 850MHz to 1550MHz

Up/Downconversion Mixer with LO Buffer

General Description

The MAX2051 high-linearity, up/downconversion mixer

provides +35dBm input IP3, 7.8dB noise figure (NF), and

7.4dB conversion loss for 850MHz to 1550MHz wireless

infrastructure and multicarrier cable head-end down-

stream video, video-on-demand (VOD), and cable

modem termination systems (CMTS) applications. The

MAX2051 also provides excellent suppression of spuri-

ous intermodulation products (> 77dBc at an RF level of

-14dBm), making it an ideal downconverter for DOCSIS ?

3.0 and Euro DOCSIS cable head-end systems. With an

LO circuit tuned to support frequencies ranging from

1200MHz to 2250MHz, the MAX2051 is ideal for high-

side LO injection applications over an IF frequency

range of 50MHz to 1000MHz.

In addition to offering excellent linearity and noise per-

formance, the MAX2051 also yields a high level of com-

ponent integration. The device integrates baluns in the

RF and LO ports, which allow for a single-ended RF

input and a single-ended LO input. The MAX2051

requires a typical LO drive of 0dBm and a supply cur-

rent guaranteed to below 130mA.

The MAX2051 is available in a compact 5mm x 5mm,

20-pin thin QFN package with an exposed pad.

Electrical performance is guaranteed over the extended

Features

? 850MHz to 1550MHz RF Frequency Range

? 1200MHz to 2250MHz LO Frequency Range

? 50MHz to 1000MHz IF Frequency Range

? DOCSIS 3.0 and Euro DOCSIS Compatible

? 7.4dB Typical Conversion Loss

? 7.8dB Typical Noise Figure

? +24dBm Typical Input 1dB Compression Point

? +35dBm Typical Input IP3

? 88dBc Typical 2RF-LO Rejection at P RF = -14dBm

? Integrated LO Buffer

? Integrated RF and LO Baluns for Single-Ended Inputs

? Low LO Drive (0dBm Nominal)

? External Current-Setting Resistor Provides Option

for Operating Device in Reduced-Power/

Reduced-Performance Mode

Ordering Information

temperature range, from T C = -40°C to +85°C.

PART

TEMP RANGE

PIN-PACKAGE

Applications

Video-on-Demand and DOCSIS-Compatible

Edge QAM Modulation

Cable Modem Termination Systems

Microwave and Fixed Broadband Wireless

Access

Microwave Links

MAX2051ETP+ -40°C to +85°C 20 Thin QFN-EP*

MAX2051ETP+T -40°C to +85°C 20 Thin QFN-EP*

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

*EP = Exposed pad.

T = Tape and reel.

Pin Configuration/

Functional Block Diagram

TOP VIEW

Military Systems

Predistortion Receivers

Private Mobile Radios

EP*

V CC

Integrated Digital Enhanced Network (iDEN ? )

GND

14 GND

Base Stations

WiMAX? Base Stations and Customer Premise

GND

13 GND

Equipment

Wireless Local Loop

GND

MAX2051

DOCSIS and CableLabs are registered trademarks of Cable

Television Laboratories, Inc. (CableLabs ? ).

iDEN is a registered trademark of Motorola, Inc.

WiMAX is a trademark of WiMAX Forum.

*EXPOSED PAD. CONNECT EP TO GND.

TQFN

________________________________________________________________ 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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