General Description

The MAX7044 crystal-referenced phase-locked-loop (PLL) VHF/UHF transmitter is designed to transmit OOK/ASK data in the 300MHz to 450MHz frequency range. The MAX7044 supports data rates up to 100kbps, and provides output power up to +13dBm into a 50Ω load while only drawing 7.7mA at 2.7V.

Features

● +2.1V to +3.6V Single-Supply Operation

● OOK/ASK Transmit Data Format

● Up to 100kbps Data Rate

● +13dBm Output Power into 50Ω Load

● Low 7.7mA (typ) Operating Supply Current*

● Uses Small, Low-Cost Crystal

● Small 3mm x 3mm 8-Pin SOT23 Package

● Fast-On Oscillator: 250μs Startup Time

Applications

● Remote Keyless Entry (RKE)

● Tire-Pressure Monitoring (TPM)

● Security Systems

● Garage Door Openers

● RF Remote Controls

● Wireless Game Consoles

● Wireless Computer Peripherals

● Wireless Sensors