MAX1470:315MHz Low-Power, +3V Superheterodyne Receiver

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

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 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. FAQs: MAX1470

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
MAX1470: Typical Application Circuit
MAX1470: Typical Application Circuit
Applications/Uses
  • Garage Door Openers
  • Medical Systems
  • Remote Controls
  • Remote Keyless Entry (RKE)
  • Security Systems
  • Toys
  • Video Game Controllers
  • Wireless Computer Peripherals
  • Wireless Sensors
DataSheet
titleDownload file
MAX1470 Data SheetMAX1470.pdf
Parametrics
Part NumberIF Output Freq.
(MHz)
ISUPPLY
(mA)
ApplicationsSolutionsBand/ Freq.
(MHz)
Footprint
(mm x mm)
Package/PinsBudgetary
Price
See Notes
MAX147010.75.5Garage Door Openers
ISM
RKE
Remote Controls
Remote Keyless Entry
Security Systems
TPM
Wireless Sensors
300MHz to 450MHz
400MHz
250 to 500
300 to 450
6.3 x 9.7TSSOP/28$1.81 @1k
Design kits & evaluation modules
Related Products
  • MAX1474:Miniature Electronically Trimmable Capacitor
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1470EUI+ActiveTSSOP,;28 pin;64.7 mm²-40°C to +85°CLead Free
MAX1470EUI+TActiveTSSOP,;28 pin;64.7 mm²-40°C to +85°CLead Free
MAX1470.pdf MAX1470
Getting Started with a Radio Design MAX7060
Squelch in ISM-RF Receivers MAX7042
Baseband Calculations for ISM-RF Receivers MAX7042
Crystal Calculations for ISM-RF Products MAX7060
How to Optimize an ISM Radio Frequency (RF) System MAX7060
RF Basics MAX7060
ASK Transmitter/Receiver Pair Serves as an Automotive Antitheft Alert System MAX1472
Design a Crystal Oscillator to Match Your Application MAX7060
Simple Wireless Temperature Monitor Also Has Data-Logging Capabilities MAX1472
Automotive Linear Regulators Minimize Quiescent Current MAX1472
Data Slicing Techniques for UHF ASK Receivers MAX1473
Manchester Data Encoding for Radio Communications MAX1479
MAX1470.pdf MAX1470