Description
The CMT2210LH/17LH series represents a high-performance, low-power OOK (On-Off Keying) RF receiver designed for simplicity and ease of integration. These devices are “plug-and-play” solutions, meaning they function immediately without the need for complex register programming or an external microcontroller. Frequency selection is achieved simply by choosing an appropriate reference crystal, making this an ideal choice for rapid development.
The series supports two distinct operating voltage ranges (3.0–5.5V or 2.0–3.6V), which are selectable via board-level pin configuration. This flexibility allows the receiver to integrate seamlessly into both high-voltage industrial systems and low-voltage, battery-powered consumer electronics. When paired with compatible transmitters like the CMT211x/5x series, these receivers provide a highly cost-effective wireless link for basic telemetry and remote control.
Note: While the device is “plug-and-play,” ensuring the correct PCB layout for the RF input and crystal oscillator is critical for achieving optimal sensitivity and frequency stability. Please consult the official datasheet for recommended layout and matching network guidelines.
Features
- Plug-and-Play: Operates independently; no external MCU or register configuration required.
- Modulation: Dedicated OOK demodulation.
- Voltage Flexibility: Supports dual voltage modes (3.0–5.5V or 2.0–3.6V) via simple PCB pin strapping.
- Frequency Tuning: RF frequency is defined by the choice of the external crystal.
- High Sensitivity: -109 dBm sensitivity at 3.0 kbps for reliable long-range reception.
- Compact: Highly integrated design minimizing external component count.
Benefits
- Development Speed: Simplifies the design process by eliminating complex radio firmware.
- Cost Efficiency: An extremely low-cost solution ideal for high-volume consumer goods.
- Reliability: Robust performance for simple wireless signaling, alarms, and RKE applications.
Applications
- Remote Keyless Entry (RKE): Automotive and access control.
- Wireless Security: Alarm systems and motion sensors.
- Home Automation: Lighting control and environmental monitoring.
- Utility/Industrial: Remote meter reading and simple industrial control.
Package Includes
- 1 x CMT2210LH-ESR Receiver Chipset
Specifications
| Parameter | Specification |
|---|---|
| Frequency Range | 300 – 480 MHz (CMT2210LH) / 300 – 960 MHz (CMT2217LH) |
| Operating Voltage | 2.0 – 3.6 V or 3.0 – 5.5 V (Selectable) |
| Data Rate | 0.5 – 40 kbps |
| Receiver Sensitivity | -109 dBm (@ 3.0 kbps) |
| Active Current | 4.5 mA (@ 433.92 MHz) |
| Bandwidth | 330 kHz |
