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.
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
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.
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