The MAX1472AKA+T is a low power, crystal-based ASK transmitter operating between 300MHz and 450MHz. Packaged in an 8-pin SOT-23, it features a highly integrated, crystal-referenced PLL designed for VHF/UHF transmission of OOK/ASK data. Supporting data rates up to 100Kbps, it offers adjustable output power exceeding +10dBm into a 50-ohm load. Its crystal-based architecture provides advantages such as greater modulation depth, faster frequency settling, higher tolerance of transmit frequency, and reduced temperature dependence, improving receiver performance, especially with superheterodyne receivers like MAX1470 or MAX1473. The device is suitable for applications including remote keyless entry, RF remote controls, tire pressure monitoring, and radio-controlled toys. It operates on a single supply voltage from 2.1V to 3.6V, with an automotive temperature range from -40°C to 125°C. The MAX1472 consumes low operating current of 5.3mA at 2.7V, with ASK modulation depth up to 90dB, and features a fast oscillator start-up time of 220µs. It also has a standby current of 5nA at shutdown. Key performance characteristics include transmit efficiencies of approximately 43.6% at 315MHz and 41.3% at 433MHz with continuous wave operation, and phase noise of -84dBc/Hz at a 100kHz offset for 315MHz frequency.
Enhance your wireless systems with the MAX1472ASK transmitter, supporting 300–450MHz frequencies, 100Kbps data rates, and high output power. Its crystal-based PLL architecture ensures stable, efficient transmission with minimal temperature dependence, making it ideal for remote controls, tire pressure sensors, and IoT devices. Operating from 2.1V to 3.6V, it features a quick startup time of 220µs and low current consumption of 5.3mA. Get high modulation depth up to 90dB and reliable performance—order online today for seamless integration into your project.
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You can download the MAX1472AKAT datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.
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