Description
The CMT2219A is a high-performance, ultra-low-power RF receiver designed for versatile wireless applications operating in the 300 to 960 MHz range. Part of the CMOSTEK “Next Gen RF” family, this receiver is engineered to deliver reliable data reception while maintaining exceptional power efficiency, making it ideal for long-life battery-operated IoT devices.
The receiver offers flexible configuration through either offline EEPROM programming or online register writing via a 4-wire SPI interface. It features advanced data processing capabilities, including Manchester decoding, data de-whitening, and a 32-byte FIFO, which offloads processing tasks from the host microcontroller. When paired with the CMT211xA transmitter, it creates a robust, low-cost RF link.
Note: Configuration for this device is typically handled via the CMOSTEK RFPDK smart software. Please refer to the official datasheet for detailed register descriptions and antenna matching network requirements.
Features
- Modulation Support: OOK, FSK, and GFSK demodulation.
- Configuration Schemes: Supports both online register configuration and offline EEPROM programming.
- Data Handling: Built-in 32-byte FIFO, Manchester decoding, and data de-whitening.
- Operating Modes: Supports Direct, Buffer, and Packet modes for versatile data processing.
- Power Management: Exceptional battery life with 60 nA sleep current (timer off) and 5.7 mA active receive current.
- Interface: 4-wire SPI interface for host communication and configurable interrupts.
Benefits
- Energy Efficiency: Optimized for extended operation in battery-constrained environments.
- Flexibility: Wide frequency range (300-960 MHz) covers most global sub-GHz ISM bands.
- Ease of Integration: Smart RFPDK tools simplify the creation of configuration files for rapid development.
Applications
- Remote Keyless Entry (RKE) and Security Systems
- Home and Building Automation
- Remote Lighting and Industrial Monitoring
- Wireless Automated Meter Reading (AMR)
- Infrared Receiver Replacements
Package Includes
- 1 x CMT2219AW-EQR Receiver Chipset
Specifications
| Parameter | Specification |
|---|---|
| Frequency Range | 300 – 960 MHz |
| Supply Voltage | 1.8 V – 3.6 V |
| Active Current | 5.7 mA |
| Sleep Current | 60 nA (Timer Off) |
| Sensitivity | -109 dBm (@ 9.6 ksps, FSK) |
| Symbol Rate | 0.1 – 100 ksps |
| Package | 16-pin QFN (3×3 mm) |
