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MAX1479

300MHz to 450MHz Low-Power, Crystal-Based +10dBm ASK/FSK Transmitter

300MHz to 450MHz Low-Power, Crystal-Based ASK/FSK Transmitter has More than +10dBm Output

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX1479 crystal-referenced phase-locked-loop (PLL) VHF/UHF transmitter is designed to transmit ASK, OOK, and FSK data in the 300MHz to 450MHz frequency range. The MAX1479 supports data rates up to 100kbps in ASK mode and 20kbps in FSK mode (both Manchester coded). The device provides an adjustable output power of more than +10dBm into a 50Ω load. The crystal-based architecture of the MAX1479 eliminates many of the common problems of SAW-based transmitters by providing greater modulation depth, faster frequency settling, higher tolerance of the transmit frequency, and reduced temperature dependence. These improvements enable better overall receiver performance when using the MAX1479 together with a superheterodyne receiver such as the MAX1470, MAX1471, MAX1473, or MAX7033.

The MAX1479 is available in a 16-pin TQFN package (3mm x 3mm) and is specified for the automotive temperature range from -40°C to +125°C.

Data Sheet

Download	Rev 1	(PDF, 272kB)
E-Mail

An evaluation kit is available: MAX1479EVKIT

Key Features

ETSI-Compliant EN300 220
+2.1V to +3.6V Single-Supply Operation
Supports ASK, OOK, and FSK Modulations
Adjustable FSK Shift
+10dBm Output Power into 50Ω Load
Low Supply Current (6.7mA in ASK Mode, and 10.5mA in FSK Mode)
Uses Small Low-Cost Crystal
Small 16-Pin TQFN Package
Fast-On Oscillator—200µs Startup Time
Programmable Clock Output

Applications/Uses

Garage Door Openers
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

MAX1479

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

200 us Start-Up Time

Adjustable FSK Shift

ETSI-Compliant EN300 220

Low Supply Current (6.7mA in ASK Mode, and 10.5mA in FSK Mode)

Output Power Adjustable to >+10dBm

Small 16-pin Thin QFN Package

Supports ASK, OOK

3.0 x 3.0

9.6

TQFN/16

Automotive - AECQ100

Automotive - General

$1.14 @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.

Diagram

Typical Application Circuit

More Information

Topmark Coding	MAX1479
New Product Press Release	[ 2004-08-27 ]

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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.: 19-3353 Rev 1; 2009-09-11
This page last modified: 2009-09-11