Analog Devices MAX1472 Product Info

• 2.1V to 3.6V Single-Supply Operation
• Low 5.3mA Operating Supply Current*
• Supports ASK with 90dB Modulation Depth
• Output Power Adjustable to More than +10dBm
• Uses Small Low-Cost Crystal
• Small 3mm x 3mm 8-Pin SOT23 Package
• Fast-On Oscillator 220µs Startup Time

The MAX1472 is a crystal-referenced phase-locked loop (PLL) VHF/UHF transmitter designed to transmit OOK/ASK data in the 300MHz to 450MHz frequency range. The MAX1472 supports data rates up to 100kbps, and adjustable output power to more than +10dBm into a 50Ω load. The crystal-based architecture of the MAX1472 eliminates many of the common problems with SAW transmitters by providing greater modulation depth, faster frequency settling, higher tolerance of the transmit frequency, and reduced temperature dependence. Combined, these improvements enable better overall receiver performance when using a superheterodyne receiver such as the MAX1470 or MAX1473.

The MAX1472 is available in a 3mm x 3mm 8-pin SOT23 package and is specified for the automotive (-40°C to +125°C) temperature range. An evaluation kit is available. Contact Maxim Integrated for more information.

Applications

• Radio-Controlled Toys
• Remote Keyless Entry (RKE)
• RF Remote Controls
• Security Systems
• Tire-Pressure Monitoring (TPM)
• Wireless Computer Peripherals
• Wireless Game Consoles
• Wireless Sensors