MAXIM MAX7044 300MHz to 450MHz High-Efficiency Crystal-Based +13dBm ASK Transmitter handbook

The MAX7044 is a crystal-referenced phase-locked loop (PLL) VHF/UHF transmitter designed to transmit OOK/ASK data in the 300MHz to 450MHz frequency range. It 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. The MAX7044's crystal-based architecture eliminates many of the common problems with SAW-based transmitters by providing greater modulation depth, faster frequency settling, higher tolerance of the transmit frequency, and reduced temperature dependence. The MAX7044 also features a low supply voltage of +2.1V to +3.6V. These improvements enable better overall receiver performance when using the MAX7044 together with a superheterodyne receiver such as the MAX1470 or MAX1473. A simple, single-input data interface and a buffered clock-out signal at 1/16th the crystal frequency make the MAX7044 compatible with almost any microcontroller or code-hopping generator. The MAX7044 is available in an 8-pin SOT23 package and is specified over the -40°C to +125°C automotive temperature range.

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Brand: MAXIM

File format: PDF

Size: 147 KB

MD5 Checksum: 602FED025494C62D9303B635F658D824

Publication date: 07 May, 2012

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PDF Link: MAXIM MAX7044 300MHz to 450MHz High-Efficiency Crystal-Based +13dBm ASK Transmitter handbook PDF