General Description

The MAX2310/MAX2312/MAX2314/MAX2316 are IF

receivers designed for dual-band, dual-mode, and sin-

gle-mode N-CDMA and W-CDMA cellular phone sys-

tems. The signal path consists of a variable gain

amplifier (VGA) and I/Q demodulator. The devices fea-

ture guaranteed +2.7V operation, a dynamic range of

over 110dB, and high input IP3 (-33dBm at 35dB gain,

1.7dBm at -35dB).

Unlike similar devices, the MAX2310 family of receivers

includes dual oscillators and synthesizers to form a

self-contained IF subsystem. The synthesizer’s refer-

ence and RF dividers are fully programmable through a

3-wire serial bus, enabling dual-band system architec-

tures using any common reference and IF frequency.

The differential baseband outputs have enough band-

width to suit both N-CDMA and W-CDMA systems, and

offer saturated output levels of 2.7Vp-p at a low +2.75V

supply voltage. Including the low-noise voltage-con-

trolled oscillator (VCO) and synthesizer, the MAX2310

draws only 26mA from a +2.75V supply in CDMA (dif-

ferential IF) mode.

The MAX2310/MAX2312/MAX2314/MAX2316 are avail-

able in 28-pin QSOP packages.

Applications

Single/Dual/Triple-Mode CDMA Handsets

Globalstar Dual-Mode Handsets

Wireless Data Links

Tetra Direct-Conversion Receivers

Wireless Local Loop (WLL)

Features

♦ Complete IF Subsystem Includes VCO and

Synthesizer

♦ Supports Dual-Band, Triple-Mode Operation

♦ VGA with >110dB Gain Control

♦ Quadrature Demodulator

♦ High Output Level (2.7V)

♦ Programmable Charge-Pump Current

♦ Supports Any IF Frequency Between 40MHz and

300MHz

♦ 3-Wire Programmable Interface

♦ Low Supply Voltage (+2.7V)

CDMA IF VGAs and I/Q Demodulators

with VCO and Synthesizer

________________________________________________________________ Maxim Integrated Products

1

19-1507; Rev 2; 6/07

PART

MAX2310EEI

MAX2312EEI

-40°C to +85°C

-40°C to +85°C

TEMP RANGE

PIN-PACKAGE

28 QSOP

28 QSOP

Pin Configurations appear at end of data sheet.

Block Diagram appears at end of data sheet.

Ordering Information

Selector Guide

MAX2314EEI

MAX2316EEI

-40°C to +85°C

-40°C to +85°C

28 QSOP

28 QSOP

Single Band, Dual Mode

AMPS,

Cellular CDMA

MAX2314

Single Band, Single Mode

PCS CDMA

Dual Band, Triple Mode

AMPS,

Cellular CDMA,

PCS CDMA

MAX2310

MAX2312

DESCRIPTION

MODE

PART

Single Band, Single Mode or

Single Band, Dual Mode with

External Discriminator

Cellular CDMA

MAX2316

40MHz to 150MHz

40MHz to 150MHz

67MHz to 300MHz

40MHz to 300MHz

INPUT RANGE

EVALUATION

KIT

AVAILABLE

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.