Maxim > Products > Wireless and RF > MAX2598

MAX2598

Quad-Band TDD-WCDMA Bits-to-RF Radio Transmitter

Industry's First Complete Digital Bits to PA Out Transmit Subsystem for 3G TDD User Equipment

Overview

Technical Documents

Ordering Info

Status

Active: Data sheet on request only

Description

The MAX2598 quad-band direct-conversion bits-to-RF radio transmitter is designed for 1x (3.84Mcps) and 2x (7.68Mcps) TDD-WCDMA applications. The part supports operation in the 874MHz, 1900MHz to 1920MHz, 2010MHz to 2025MHz, and 2050MHz to 2082MHz frequency bands.

The unique bits-to-RF architecture of the MAX2598 integrates 3 power amplifiers (PAs), quadrature mixers, variable-gain RF and baseband amplifiers, baseband filters, I and Q digital-to-analog converters (DACs), a fractional-N frequency synthesizer for local oscillator (LO) generation, and a fractional-N frequency synthesizer for sampling clock generation. Data is transferred from the baseband/DSP to the radio by a digital 1-bit sigma-delta modulated I and Q bitstream through an LVDS-like interface. The operating mode of the radio is fully programmable by a 3-wire serial interface.

The MAX2598 is specified for operation in the extended -40°C to +85°C temperature range and is available in a 9mm x 9mm x 1.4mm fcLGA package with exposed paddle (EP).

Data Sheet

Request Full Data Sheet

Key Features

Complete Digital Bits In to RF Out Radio Transmitter Subsystem
Supports 1x (3.84Mcps) and 2x (7.68Mcps) TDD-WCDMA Operation in the Following Bands:
- 874MHz
- 1900MHz to 1920MHz
- 2010MHz to 2025MHz
- 2050MHz to 2082MHz
MAX-PHY Digital Tx Interface with Single-Bit I and Q Bitstreams
Complete Two-Chip TDD-WCDMA Solution with MAX2548 Receiver
On-Chip Fractional-N Frequency Synthesizers for LO and Data Recovery Clock Generation
Operation Controlled Entirely by 3-Wire Serial Interface; No Analog Control Signals Necessary

Applications/Uses

TD-SCDMA Transmitters
TDD-WCDMA Handsets and Data Cards

Key Specifications:

Femto RF Transmitters

Part Number

Applications

Band/ Freq.
(MHz)

Features

Footprint
(mm x mm)

Package/Pins

Smallest Available Pckg.
(mm²)

max w/pins

MAX2598

Data Cards

Handsets

TDD-WCDMA

TDTV Receivers

874

1900 to 1920

2010 to 2025

2050 to 2082

Complete Digital Bits-to-RF Output TX Radio Subsystem

Integrates 3 PAs with DACs and Fractional-N Frequency Synthesizers

9.0 x 9.0

FCLGA/64

82.8

See All Femto RF Transmitters (3)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Functional Diagram

Application Notes

Tutorial 5100

General Layout Guidelines for RF and Mixed-Signal PCBs

Product Guides

Wireless (PDF)

Reliability Reports

Show FIT data for:
Request Reliability Report for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX2598ELB+			Active: Data sheet on request only	FCLGA;64 pin;82.8 mm² Outline Drawing:21-0167 (PDF) Land Pattern: 90-0305 (PDF) Use pkgcode/variation: L6499F+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX2598ELB+T			Active: Data sheet on request only	FCLGA;64 pin;82.8 mm² Outline Drawing:21-0167 (PDF) Land Pattern: 90-0305 (PDF) Use pkgcode/variation: L6499F+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX2598EVKIT			Active: Data sheet on request only	KIT; Land Pattern: Not Available		See data sheet

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Notes and Comments

Unique, ultra-high integration radio transmitter includes entire signal chain from digital input to final power amplifier output.

Similar Products by Function

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See All Femto RF Transmitters (3 Products)

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-1022 Rev 1; 2008-06-27
This page last modified: 2009-02-18