MAX1473EUI+

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 <lt/> 2.5µA
• 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.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party