MAX1472

Features:

 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 ✕ 3mm 8-Pin SOT23 Package
 Fast-On Oscillator 220s Startup Time


Application

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


Pinout




Specifications

V_DD to GND .............................................................-0.3V to +4.0V
All Other Pins to GND .....................................-0.3V to (V_DD + 0.3V)
Continuous Power Dissipation (T_A = +70°C)
    8-Pin SOT23 (derate 8.9mW/°C above +70°C)...............714mW
Operating Temperature Range ...........................-40°C to +125°C
Storage Temperature Range ..............................-60°C to +150°C
Lead Temperature (soldering, 10s) ...................................+300°C


Description

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 50 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 Products for more information.