Top

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

Product Details

Key Features

Parametric specs for ISM RF Transmitters < 1GHz
Band/ Freq. (MHz) 300 to 450
Tx Output Power (dBm) (max) 10.3
Modulation Mode ASK
OOK
VSUPPLY (V) 2.1 to 3.6
Package/Pins SOT23/8
Budgetary
Price (See Notes)
1.01
View Less

Simplified Block Diagram

Technical Docs

Data Sheet 300MHz-to-450MHz Low-Power, Crystal-Based ASK Transmitter Jun 15, 2012
Tutorial Web Seminar: Wireless Technology Tutorial
App Note FCC and ETSI Requirements for Sub-1GHz ASK-Modulated Transmitters
App Note How to Achieve Greater Accuracy in Battery Capacity Readings for Portable Designs
App Note Heart-Rate/Fitness Monitors Go Wireless
App Note ASK Transmitter/Receiver Pair Serves as an Automotive Antitheft Alert System
App Note Flexible Configuration of the MAX7060 ASK/FSK ISM-RF Transmitter
App Note Radio Link-Budget Calculations for ISM-RF Products
App Note ISM Transmitter Has Constant Transmitter Power for Varying Supply Voltage
App Note FCC and ETSI Requirements for Short-Range UHF ASK-Modulated Transmitters
App Note Radiated Power and Field Strength from UHF ISM Transmitters
App Note Power Amplifier Theory for High-Efficiency Low-Cost ISM-Band Transmitters
App Note Manchester Data Encoding for Radio Communications
App Note Matching Maxim's 300MHz to 450MHz Transmitters to Small Loop Antennas
App Note Requirements of Remote Keyless Entry Systems | Maxim Integrated
App Note Automotive Linear Regulators Minimize Quiescent Current
App Note Designing Output-Matching Networks for the MAX1472 ASK Transmitter
App Note Remote Keyless Entry Systems Overview
App Note Designing Remote Keyless Entry (RKE) Systems
App Note How to Choose a Quartz Crystal Oscillator for the MAX1470 Superheterodyne Receiver
Tutorial Power Line Communication Circuit Guide | Maxim Integrated
Tutorial Important Design Considerations for Heart-Rate and Fitness Monitors
Tutorial Introduction to Hearing Aids and Important Design Considerations
Tutorial Avoid PC-Layout \"Gotchas\" in ISM-RF Products
Tutorial Fast Start-Up Oscillator (FOX) Boosts Superhet Performance
Tutorial How to Optimize an ISM Radio Frequency (RF) System
Tutorial Getting Started with a Radio Design
Tutorial RF Basics Guide
Tutorial Crystal Calculations for ISM-RF Products
Tutorial PCBs Layout Guidelines for RF & Mixed-Signal | Maxim Integrated
Tutorial Design a Crystal Oscillator to Match Your Application

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Parameters

Parametric specs for ISM RF Transmitters < 1GHz
Band/ Freq. (MHz) 300 to 450
Tx Output Power (dBm) (max) 10.3
Modulation Mode ASK
OOK
VSUPPLY (V) 2.1 to 3.6
Package/Pins SOT23/8
Budgetary
Price (See Notes)
1.01

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

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 for more information.

Simplified Block Diagram

MAX1472: Typical Application Circuit MAX1472: Typical Application Circuit Zoom icon

Technical Docs

Data Sheet 300MHz-to-450MHz Low-Power, Crystal-Based ASK Transmitter Jun 15, 2012
Tutorial Web Seminar: Wireless Technology Tutorial
App Note FCC and ETSI Requirements for Sub-1GHz ASK-Modulated Transmitters
App Note How to Achieve Greater Accuracy in Battery Capacity Readings for Portable Designs
App Note Heart-Rate/Fitness Monitors Go Wireless
App Note ASK Transmitter/Receiver Pair Serves as an Automotive Antitheft Alert System
App Note Flexible Configuration of the MAX7060 ASK/FSK ISM-RF Transmitter
App Note Radio Link-Budget Calculations for ISM-RF Products
App Note ISM Transmitter Has Constant Transmitter Power for Varying Supply Voltage
App Note FCC and ETSI Requirements for Short-Range UHF ASK-Modulated Transmitters
App Note Radiated Power and Field Strength from UHF ISM Transmitters
App Note Power Amplifier Theory for High-Efficiency Low-Cost ISM-Band Transmitters
App Note Manchester Data Encoding for Radio Communications
App Note Matching Maxim's 300MHz to 450MHz Transmitters to Small Loop Antennas
App Note Requirements of Remote Keyless Entry Systems | Maxim Integrated
App Note Automotive Linear Regulators Minimize Quiescent Current
App Note Designing Output-Matching Networks for the MAX1472 ASK Transmitter
App Note Remote Keyless Entry Systems Overview
App Note Designing Remote Keyless Entry (RKE) Systems
App Note How to Choose a Quartz Crystal Oscillator for the MAX1470 Superheterodyne Receiver
Tutorial Power Line Communication Circuit Guide | Maxim Integrated
Tutorial Important Design Considerations for Heart-Rate and Fitness Monitors
Tutorial Introduction to Hearing Aids and Important Design Considerations
Tutorial Avoid PC-Layout \"Gotchas\" in ISM-RF Products
Tutorial Fast Start-Up Oscillator (FOX) Boosts Superhet Performance
Tutorial How to Optimize an ISM Radio Frequency (RF) System
Tutorial Getting Started with a Radio Design
Tutorial RF Basics Guide
Tutorial Crystal Calculations for ISM-RF Products
Tutorial PCBs Layout Guidelines for RF & Mixed-Signal | Maxim Integrated
Tutorial Design a Crystal Oscillator to Match Your Application

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .