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


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

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

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Status

Active: In Production.

Description

FULL DATA SHEET (PDF, 228kB)

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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.

An evaluation kit is available: MAX1470EVKIT

Key Features Applications/Uses

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

Garage Door Openers
Medical Systems
Remote Controls
Remote Keyless Entry (RKE)
Security Systems
Toys
Video Game Controllers
Wireless Computer Peripherals
Wireless Sensors