The MAX7049 is a high-performance ASK/FSK UHF transmitter that operates in the 288MHz to 945MHz carrier frequency range. It features ultra-low power consumption, precise tuning, fast frequency agility, and low out-of-band power, making it ideal for long-range applications. Additionally, the MAX7049 includes a digital temperature sensor and flexible GPOs for monitoring radio status and controlling external functions. It is suitable for applications such as automatic meter reading, remote keyless entry, wireless sensor networks, home security, home automation, RFID, and remote controls.
The MAX7049 is a single‑chip, ultra‑low‑power ASK/FSK UHF transmitter that operates in the 288 MHz to 945 MHz ISM band. It offers up to +15 dBm output power, low shutdown current (<50 nA), and features such as a fractional‑N synthesizer, amplitude and frequency shaping, and an on‑chip temperature sensor. The device is supplied in a 28‑pin TQFN package and is rated for automotive temperature ranges.
Typical applications include automatic meter reading, remote keyless entry, wireless sensor networks, home security, RFID, and other long‑range one‑way communications. The datasheet provides detailed pin configurations, SPI command formats, operating modes, and ordering information for designers.
| Operating Frequency Range | 288 MHz to 945 MHz |
|---|---|
| Maximum Transmit Power | +15 dBm |
The MAX7049 can deliver up to +15 dBm output power.
The MAX7049 uses a Serial Peripheral Interface (SPI) for digital control.