Rainbow-electronics MAX2022 Instrukcja Użytkownika Pobierz pdf

General Description

The MAX2022 low-noise, high-linearity, direct upcon-

version quadrature modulator is designed for single

and multicarrier 1800MHz to 2200MHz UMTS/WCDMA,

cdma2000

, and DCS/PCS base-station applications.

Direct upconversion architectures are advantageous

since they significantly reduce transmitter cost, part

count, and power consumption as compared to tradi-

tional IF-based double upconversion systems.

In addition to offering excellent linearity and noise perfor-

mance, the MAX2022 also yields a high level of compo-

nent integration. This device includes two matched

passive mixers for modulating in-phase and quadrature

signals, three LO mixer amplifier drivers, and an LO

quadrature splitter. On-chip baluns are also integrated to

allow for single-ended RF and LO connections. As an

added feature, the baseband inputs have been matched

to allow for direct interfacing to the transmit DAC, there-

by eliminating the need for costly I/Q buffer amplifiers.

The MAX2022 operates from a single +5V supply. It is

available in a compact 36-pin thin QFN package (6mm

x 6mm) with an exposed paddle. Electrical perfor-

mance is guaranteed over the extended -40°C to

+85°C temperature range.

Applications

Single and Multicarrier WCDMA/UMTS Base

Stations

Single and Multicarrier cdmaOne™ and cdma2000

Base Stations

Single and Multicarrier DCS 1800/PCS 1900 EDGE

Base Stations

PHS/PAS Base Stations

Predistortion Transmitters

Fixed Broadband Wireless Access

Wireless Local Loop

Private Mobile Radio

Military Systems

Microwave Links

Digital and Spread-Spectrum Communication

Systems

Features

♦ 1500MHz to 2500MHz RF Frequency Range

♦ Meets Four-Carrier WCDMA 65dBc ACLR

♦ +23.3dBm Typical OIP3

♦ +51.5dBm Typical OIP2

♦ 45.7dBc Typical Sideband Suppression

♦ -40dBm Typical LO Leakage

♦ -173.2dBm/Hz Typical Output Noise, Eliminating

the Need for an RF Output Filter

♦ Broadband Baseband Input

♦ DC-Coupled Input Provides for Direct Launch

DAC Interface, Eliminating the Need for Costly I/Q

Buffer Amplifiers

MAX2022

High-Dynamic-Range, Direct Upconversion

1500MHz to 2500MHz Quadrature Modulator

________________________________________________________________ Maxim Integrated Products 1

RF OUTPUT POWER PER CARRIER (dBm)

ACLR AND ALT CLR (dBc)

-10-20-30-40

-78

-76

-74

-72

-70

-68

-66

-64

-62

-60

-80

NOISE FLOOR (dBm/Hz)

-165

-155

-145

-135

-125

-175

-50 0

4C ADJ

4C ALT

2C ADJ 1C ADJ

2C ALT

1C ALT

NOISE FLOOR

WCDMA, ACLR, ALTCLR and Noise vs. RF

Output Power at 2140MHz for Single,

Two, and Four Carriers

Ordering Information

19-3572; 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

MAX2022ETX

-40°C to +85°C

36 Thin QFN-EP*

(6mm x 6mm)

T3666-2

MAX2022ETX-T

-40°C to +85°C

36 Thin QFN-EP*

(6mm x 6mm)

T3666-2

MAX2022ETX+D

-40°C to +85°C

36 Thin QFN-EP*

(6mm x 6mm)

T3666-2

MAX2022ETX+TD

-40°C to +85°C

36 Thin QFN-EP*

(6mm x 6mm)

T3666-2

cdma2000 is a registered trademark of Telecommunications

Industry Association.

cdmaOne is a trademark of CDMA Development Group.

*EP = Exposed paddle. + = Lead free. D = Dry pack.

-T = Tape-and-reel package.

1 2 3 4 5 6 ... 13 14

Podsumowanie treści

Strona 1 - Ordering Information

General DescriptionThe MAX2022 low-noise, high-linearity, direct upcon-version quadrature modulator is designed for singleand multicarrier 1800MHz to

Strona 2 - AC ELECTRICAL CHARACTERISTICS

MAX2022up to 2VP-Pdifferential (common-mode input equals 0V).The wide input bandwidth allows for direct interface withthe baseband DACs. No active buf

Strona 3