MAXIM INTEGRATED / ANALOG DEVICES MAX1473EUI+ Datasheet & Stock

The MAX1473EUI+ is a 315MHz/433MHz ASK superheterodyne receiver with extended dynamic range in 28 pin TSSOP package. This fully integrated low power CMOS receiver is ideal for receiving amplitude shift-keyed (ASK) data in the 300MHz to 450MHz frequency range. Its signal range is from -114dBm to 0dBm. With few external components and a low current power down mode it is ideal for cost and power sensitive applications typical in automotive and consumer markets. The chip consists of a low noise amplifier LNA , a fully differential image rejection mixer, an on-chip phase locked loop with integrated voltage controlled oscillator, a 10.7MHz IF limiting amplifier stage with received signal strength indicator and analogue baseband data recovery circuitry. It also has a discrete one step automatic gain control that drops the LNA gain by 35dB when the RF input signal is greater than -57dBm. It is used in automotive remote keyless entry, garage door openers, remote controls & home automation.




Operates from single 3.3V or 5.0V supplies

Operating temperature range from -40°C to 85°C

Receiver input frequency range from 300MHz to 450MHz

High dynamic range with on-chip AGC, selectable image rejection centre frequency

Selectable x64 or x32 fLO/fXTAL ratio

Low 5.2mA operating supply current

Low current power down mode for efficient power cycling

250µs start-up time, built-in 50dB RF image rejection

Receive sensitivity of -114dBm





Applications


Building Automation,

Automation & Process Control,

Communications & Networking,

Wireless,

Security





Warnings
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.