MAX2023ETX+ Maxim Integrated Products, MAX2023ETX+ Datasheet

MAX2023ETX+

Manufacturer Part Number

MAX2023ETX+

Description

Modulator / Demodulator IC MOD/DEMOD HI DYN RNG

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX2023ETX.pdf (13 pages)

Specifications of MAX2023ETX+

Package / Case

QFN-36

Mounting Style

SMD/SMT

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 13
Download datasheet (261Kb)

The MAX2023 low-noise, high-linearity, direct upconver-

sion/downconversion quadrature modulator/demodulator

is designed for single and multicarrier 1500MHz to

2300MHz DCS 1800/PCS 1900 EDGE, cdma2000

WCDMA, and PHS/PAS base-station applications.

Direct conversion architectures are advantageous

since they significantly reduce transmitter or receiver

cost, part count, and power consumption as compared

to traditional IF-based double-conversion systems.

In addition to offering excellent linearity and noise perfor-

mance, the MAX2023 also yields a high level of compo-

nent integration. This device includes two matched

passive mixers for modulating or demodulating in-phase

and quadrature signals, two LO mixer amplifier drivers,

and an LO quadrature splitter. On-chip baluns are also

integrated to allow for single-ended RF and LO connec-

tions. As an added feature, the baseband inputs have

been matched to allow for direct interfacing to the trans-

mit DAC, thereby eliminating the need for costly I/Q

buffer amplifiers.

The MAX2023 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.

19-0564; Rev 0; 7/06

cdma2000 is a registered trademark of Telecommunications

Industry Association.

cdmaOne is a trademark of CDMA Development Group.

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.

High-Dynamic-Range, Direct Up-/Downconversion

Single-Carrier DCS 1800/PCS 1900 EDGE Base

Stations

Single and Multicarrier WCDMA/UMTS Base

Stations

Single and Multicarrier cdmaOne™ and cdma2000

Base Stations

Predistortion Transmitters and Receivers

PHS/PAS Base Stations

Fixed Broadband Wireless Access

Military Systems

Microwave Links

Digital and Spread-Spectrum Communication

Systems

Video-on-Demand (VOD) and DOCSIS Compliant

Edge QAM Modulation

Cable Modem Termination Systems (CMTS)

1500MHz to 2300MHz Quadrature Mod/Demod

_______________________________________________________________________ Maxim Integrated Products

General Description

Applications

o 1500MHz to 2300MHz RF Frequency Range

o Scalable Power: External Current-Setting

o 36-Pin, 6mm x 6mm TQFN Provides High Isolation

Modulator Operation:

o Meets GSM Spurious Emission of -75dBc at

o +23.5dBm Typical OIP3

o +61dBm Typical OIP2

o +16dBm Typical OP1dB

o -54dBm Typical LO Leakage

o 48dBc Typical Sideband Suppression

o -165dBc/Hz Output Noise Density

o Broadband Baseband Input of 450MHz Allows a

o DC-Coupled Input Allows Ability for Offset

Demodulator Operation:

o +38dBm Typical IIP3

o +59dBm Typical IIP2

o +30dBm Typical IP1dB

o 9.5dB Typical Conversion Loss

o 9.6dB Typical NF

o 0.025dB Typical I/Q Gain Imbalance

o 0.56° I/Q Typical Phase Imbalance

* EP = Exposed paddle.

+ Denotes lead-free package.

T = Tape-and-reel package.

MAX2023ETX

MAX2023ETX-T -40°C to +85°C

MAX2023ETX+ -40°C to +85°C

MAX2023ETX+T -40°C to +85°C

Resistors Provide Option for Operating Device in

Reduced-Power/Reduced-Performance Mode

in a Small Package

600kHz Offset at P

Direct Launch DAC Interface, Eliminating the

Need for Costly I/Q Buffer Amplifiers

Voltage Control

PART

-40°C to +85°C

TEMP RANGE

OUT

Ordering Information

= +6dBm

PIN-

PACKAGE

36 Thin QFN-EP*

(6mm x 6mm)

36 Thin QFN-EP*

(6mm x 6mm)

36 Thin QFN-EP*

(6mm x 6mm)

36 Thin QFN-EP*

(6mm x 6mm)

Features

T3666-2

CODE

PKG

Related parts for MAX2023ETX+

MAX2023ETX+ Summary of contents

Page 1

... Typical Conversion Loss o 9.6dB Typical NF o 0.025dB Typical I/Q Gain Imbalance o 0.56° I/Q Typical Phase Imbalance PART MAX2023ETX MAX2023ETX-T -40°C to +85°C MAX2023ETX+ -40°C to +85°C MAX2023ETX+T -40°C to +85° Exposed paddle. + Denotes lead-free package Tape-and-reel package. Features = +6dBm OUT Ordering Information ...

Page 2

High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2300MHz Quadrature Mod/Demod ABSOLUTE MAXIMUM RATINGS VCC_ to GND ........................................................-0.3V to +5.5V BBI+, BBI-, BBQ+, BBQ- to GND..................- LO GND Maximum Current ......................................30mA RF Input Power ...............................................................+30dBm Baseband Differential I/Q Input ...

Page 3

High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2300MHz Quadrature Mod/Demod AC ELECTRICAL CHARACTERISTICS (Modulator) (continued) (MAX2023 Typical Application Circuit , when operated as a modulator, V driven from a 100Ω DC-coupled source, 0V common-mode input, 50Ω LO and RF system impedance, R1 ...

Page 4

High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2300MHz Quadrature Mod/Demod Note the temperature on the exposed paddle. C Note 2: Guaranteed by production test. Note 2.66V differential CW input. I/Q P-P Note 4: No baseband drive ...

Page 5

High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2300MHz Quadrature Mod/Demod (MAX2023 Typical Application Circuit , V CC (modulator 2.6V differential (modulator), P BBI BBQ P-P (demodulator), 0V common-mode input/output, P MODULATOR OUTPUT IP3 vs. LO FREQUENCY 30 f ...

Page 6

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Page 8

High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2300MHz Quadrature Mod/Demod PIN NAME 1, 5, 9–12, 14, 16–19, 22, GND 24, 27–30, 32, 34, 35 RBIASLO3 3rd LO Amplifier Bias. Connect a 300Ω resistor to ground. 3 VCCLOA ...

Page 9

High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2300MHz Quadrature Mod/Demod The MAX2023 modulator is composed of a pair of matched double-balanced passive mixers and a balun. The I and Q differential baseband inputs accept signals from DC to 450MHz with differential amplitudes ...

Page 10

High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2300MHz Quadrature Mod/Demod MAX5873 MAX4395 DUAL DAC QUAD AMP Figure 2. Complete Transmitter Lineup for GSM/EDGE DCS/PCS-Band Base Stations The MAX5895 DAC has programmable gain and differ- ential offset controls built ...

Page 11

High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2300MHz Quadrature Mod/Demod soidal baseband signals, a level of 89mV on the I and the Q inputs results in a -17dBm input power level delivered to the I and Q internal 50Ω termi- nations. This ...

Page 12

High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2300MHz Quadrature Mod/Demod Power-Supply Bypassing Proper voltage-supply bypassing is essential for high- frequency circuit stability. Bypass all VCC_ pins with 22pF and 0.1µF capacitors placed as close to the pins as possible, with the smallest ...

Page 13

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © 2006 Maxim Integrated Products ...

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