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MAX1470 Datasheet PDF - Maxim Integrated

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General 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.

♦ 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

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

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