The MAX7049 high-performance, single-chip, ultra-low-power ASK/FSK UHF transmitter operates in the industrial, scientific, medical (ISM) band at 288MHz to 945MHz carrier frequencies. The IC also includes a low phase noise fractional-N synthesizer for precise tuning, fast frequency agility, and low out-of-band power. To support narrow-band applications, the IC has both amplitude-shaping and frequency-shaping functions that enable the user to optimize spectral efficiency. The IC offers Tx power up to +15dBm. These features make the transmitter ideally suited for long-range applications.
Additional system-level features of the IC include a digital temperature sensor and a number of flexible GPOs for monitoring radio status and for the control of external functions. A complete transmitter system can be built using a low-end microprocessor control unit (MCU), the IC, a crystal, and a small number of passive components.
The IC is available in a small, 5mm x 5mm, 28-pin TQFN package with an exposed pad. It is specified to operate in the -40°C to +125°C automotive temperature range.
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