The MICRF218 is the world's first integrated ASK / OOK receiver with selectable dual IF bandwidths for 300~450 MHz operation. It has a fully integrated IF section with image rejection, providing performance, simplicity, and ease of implementation for the receiver portion of RF actuation. The MICRF218 is a true RF in, data out receiver. It features built-in IF filter and image rejection functions. The dual IF bandwidths allow the MICRF218 to capture signals from high performance or low cost transmitters. Additionally, the MICRF218 provides post-detection data filtering with a choice of four filter bandwidths ranging from 1.25 kHz to 10 kHz. The device can be programmed with easily determined values based on data rate, code modulation format, and desired duty-cycle operation. The MICRF218 includes a shutdown control for duty-cycle operation to reduce average current consumption. It also has an analog RSSI output to indicate the strength of incoming signals. The device is unique for its ability to e...
The MICRF218 is a 3.3 V QwikRadio® receiver that operates from 300 MHz to 450 MHz. It integrates the IF section, image‑rejection mixer and analog RSSI output, offering selectable dual IF bandwidths and low‑power duty‑cycle operation.
The device is supplied in a 16‑Pin QSOP package and includes features such as built‑in image rejection, programmable filter bandwidths (1.25 kHz to 10 kHz), and a shutdown control for duty‑cycle operation. Detailed electrical characteristics, pin descriptions, and package dimensions are provided.
| Frequency range | 300 MHz to 450 MHz |
|---|---|
| Supply voltage (Vpp) | +3.0 V to +3.6 V |
| Continuous supply current (315 MHz) | 4.0 mA |
| Shutdown current (20:1 duty cycle, 315 MHz) | 0.2 mA |
| RSSI output impedance | 200 Ω |
| Package type | 16‑Pin QSOP |
The receiver operates from 300 MHz to 450 MHz.
The device is specified for a supply voltage of 3.0 V to 3.6 V.
In a 20:1 duty‑cycle configuration at 315 MHz, the shutdown current is 0.2 mA.
The part is supplied in a 16‑Pin QSOP (QSOP16) package.