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MAX1472

300MHz-to-450MHz Low-Power, Crystal-Based ASK Transmitter

Industry's Smallest 300MHz to 450MHz Transmitter in SOT23 Package Consumes Only 5.5mA at +10dBm Output

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX1472 is a crystal-referenced phase-locked loop (PLL) VHF/UHF transmitter designed to transmit OOK/ASK data in the 300MHz to 450MHz frequency range. The MAX1472 supports data rates up to 100kbps, and adjustable output power to more than +10dBm into a 50Ω load. The crystal-based architecture of the MAX1472 eliminates many of the common problems with SAW transmitters by providing greater modulation depth, faster frequency settling, higher tolerance of the transmit frequency, and reduced temperature dependence. Combined, these improvements enable better overall receiver performance when using a superheterodyne receiver such as the MAX1470 or MAX1473.

The MAX1472 is available in a 3mm x 3mm 8-pin SOT23 package and is specified for the automotive (-40°C to +125°C) temperature range. An evaluation kit is available. Contact Maxim Integrated Products for more information.

Data Sheet

Download	Rev 3	(PDF, 180kB)
E-Mail

An evaluation kit is available: MAX1472EVKIT

Key Features

2.1V to 3.6V Single-Supply Operation
Low 5.3mA Operating Supply Current*
Supports ASK with 90dB Modulation Depth
Output Power Adjustable to More than +10dBm
Uses Small Low-Cost Crystal
Small 3mm x 3mm 8-Pin SOT23 Package
Fast-On Oscillator 220µs Startup Time

Applications/Uses

Radio-Controlled Toys
Remote Keyless Entry (RKE)
RF Remote Controls
Security Systems
Tire-Pressure Monitoring (TPM)
Wireless Computer Peripherals
Wireless Game Consoles
Wireless Sensors

Key Specifications:

ISM RF Transmitters

Part Number

Solutions

Applications

Band/ Freq.
(MHz)

Features

Footprint
(mm x mm)

Smallest Available Pckg.
(mm²)

Package/Pins

Industry Qualified

Budgetary Price

max w/pins

See Notes

MAX1472

300 to 450MHz-ISM RKE

Automotive

Garage Door Openers

Home Automation

ISM

ISM (Europe)

RF Remote Controls

RKE

Security Systems

TPM

300 to 450

2.1V to 3.6V Single-Supply Operation

Output Power Adjustable to >+10dBm

Supports ASK with 90dBm Modulation Depth

Uses Small Low-Cost XTAL

3.0 x 3.0

SOT/8

Automotive - AECQ100

Automotive - General

$1.15 @1k

See All ISM RF Transmitters (13)

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.

*At 50% duty cycle (315MHz, 2.7V supply, +10dBm output power)

Diagram

Typical Application Circuit

More Information

Topmark Coding	MAX1472
New Product Press Release	[ 2003-04-29 ]

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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.: 19-2872 Rev 3; 2010-11-11
This page last modified: 2010-11-11