MAX1470

315MHz Low-Power, +3V Superheterodyne Receiver

112dB Sensitivity, 300MHz-450MHz Super-Het Receiver Has 50dB of Integrated Image Rejection


Description

The MAX1470 is a fully integrated low-power CMOS superheterodyne receiver for use with amplitude-shift-keyed (ASK) data in the 315MHz band. With few required external components, and a low-current power-down mode, it is ideal for cost- and power-sensitive applications in the automotive and consumer markets. The chip consists of a 315MHz low-noise amplifier (LNA), an image rejection mixer, a fully integrated 315MHz phase-lock-loop (PLL), a 10.7MHz IF limiting amplifier stage with received-signal-strength indicator (RSSI) and an ASK demodulator, and analog baseband data-recovery circuitry.

The MAX1470 is available in a 28-pin TSSOP package.
MAX1470: Typical Application Circuit MAX1470: Typical Application Circuit Enlarge+

Key Features

  • Operates from a Single +3.0V to +3.6V Supply
  • Built-In 53dB RF Image Rejection
  • -115dBm Receive Sensitivity*
  • 250µs Startup Time
  • Low 5.5mA Operating Supply Current
  • 1.25µA Low-Current Power-Down Mode for Efficient Power Cycling
  • 250MHz to 500MHz Operating Band (Image Rejection Optimized at 315MHz)
  • Integrated PLL with On-Board Voltage-Controlled Oscillator (VCO) and Loop Filter
  • Selectable IF Bandwidth Through External Filter
  • Complete Receive System from RF to Digital Data Out

Applications/Uses

  • Garage Door Openers
  • Medical Systems
  • Remote Controls
  • Remote Keyless Entry (RKE)
  • Security Systems
  • Toys
  • Video Game Controllers
  • Wireless Computer Peripherals
  • Wireless Sensors
Part Number IF fOUT
(MHz)
ISUPPLY
(mA)
Applications Solutions Band/ Freq.
(MHz)
Features Footprint
(mm x mm)
Budgetary
Price
See Notes
MAX1470  10.7 5.5
Garage Door Openers
ISM
RKE
Remote Controls
Remote Keyless Entry
Security Systems
TPM
Wireless Sensors
300MHz to 450MHz
400MHz
250 to 500
300 to 450
+3.0V to +3.6V Single-Supply Operation 6.3 x 9.7 $1.72 @1k
See All ISM RF Receivers (9)
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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX1470EVKIT: Evaluation Kit for the MAX1470

Technical Documents

Tutorial 5436 Getting Started with a Radio Design
Tutorial 5428 Squelch in ISM-RF Receivers
Tutorial 5426 Baseband Calculations for ISM-RF Receivers
Tutorial 5422 Crystal Calculations for ISM-RF Products
App Note 5417 How to Optimize an ISM Radio Frequency (RF) System
Tutorial 5300 RF Basics
App Note 5291 ASK Transmitter/Receiver Pair Serves as an Automotive Antitheft Alert System
Tutorial 5265 Design a Crystal Oscillator to Match Your Application
Reference Schematic 5150 Simple Wireless Temperature Monitor Also Has Data-Logging Capabilities
App Note 5142 Radio Link-Budget Calculations for ISM-RF Products
Tutorial 5100 General Layout Guidelines for RF and Mixed-Signal PCBs
Tutorial 4651 Web Seminar: Wireless Technology Tutorial
Tutorial 4636 Avoid PC-Layout "Gotchas" in ISM-RF Products
App Note 3928 Automotive Linear Regulators Minimize Quiescent Current
App Note 3671 Data Slicing Techniques for UHF ASK Receivers
App Note 3435 Manchester Data Encoding for Radio Communications
App Note 3395 Requirements of Remote Keyless Entry (RKE) Systems
App Note 2815 Calculating the Sensitivity of an ASK Receiver
Tutorial 1955 Fast Start-Up Oscillator (FOX) Boosts Superhet Performance
App Note 1836 Improving Receiver Sensitivity with External LNA
App Note 1830 How to Tune and Antenna Match the MAX1470 Circuit
App Note 1776 MAX1470 Superheterodyne Receiver FAQ
App Note 1774 Remote Keyless Entry Systems Overview
App Note 1773 Designing Remote Keyless Entry (RKE) Systems
App Note 1018 How to Modify an Existing Design from a TDA5200 or TDA5201 to a MAX1470 Superheterodyne Receiver
App Note 1017 How to Choose a Quartz Crystal Oscillator for the MAX1470 Superheterodyne Receiver
Tutorial 749 Use Selectivity to Improve Receiver Intercept Point

Quality and Environmental Data

Request Reliability Report for: MAX1470 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

CAD and Layout
MAX1470 Gerber File
 

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Type ID PDF Title
Tutorial 5436 Getting Started with a Radio Design
Tutorial 5428 Squelch in ISM-RF Receivers
Tutorial 5426 Baseband Calculations for ISM-RF Receivers
Tutorial 5422 Crystal Calculations for ISM-RF Products
App Note 5417 How to Optimize an ISM Radio Frequency (RF) System
Tutorial 5300 RF Basics
App Note 5291 ASK Transmitter/Receiver Pair Serves as an Automotive Antitheft Alert System
Tutorial 5265 Design a Crystal Oscillator to Match Your Application
Reference Schematic 5150 Simple Wireless Temperature Monitor Also Has Data-Logging Capabilities
App Note 5142 Radio Link-Budget Calculations for ISM-RF Products
Tutorial 5100 General Layout Guidelines for RF and Mixed-Signal PCBs
Tutorial 4651 Web Seminar: Wireless Technology Tutorial
Tutorial 4636 Avoid PC-Layout "Gotchas" in ISM-RF Products
App Note 3928 Automotive Linear Regulators Minimize Quiescent Current
App Note 3671 Data Slicing Techniques for UHF ASK Receivers
App Note 3435 Manchester Data Encoding for Radio Communications
App Note 3395 Requirements of Remote Keyless Entry (RKE) Systems
App Note 2815 Calculating the Sensitivity of an ASK Receiver
Tutorial 1955 Fast Start-Up Oscillator (FOX) Boosts Superhet Performance
App Note 1836 Improving Receiver Sensitivity with External LNA
App Note 1830 How to Tune and Antenna Match the MAX1470 Circuit
App Note 1776 MAX1470 Superheterodyne Receiver FAQ
App Note 1774 Remote Keyless Entry Systems Overview
App Note 1773 Designing Remote Keyless Entry (RKE) Systems
App Note 1018 How to Modify an Existing Design from a TDA5200 or TDA5201 to a MAX1470 Superheterodyne Receiver
App Note 1017 How to Choose a Quartz Crystal Oscillator for the MAX1470 Superheterodyne Receiver
Tutorial 749 Use Selectivity to Improve Receiver Intercept Point