MICRF218AYQS

Product Overview

MICRF218AYQS from Microchip Technology is a 300 MHz to 450 MHz ASK/OOK receiver with selectable IF bandwidth. This RF receiver entry is prepared for engineering and sourcing teams that need a practical summary of the receiver architecture, operating band and interface considerations.

The description below focuses on receiver function, RF band, modulation support, power/interface notes and supply-chain usage for BOM sourcing.

Key Features

• Manufacturer: Microchip Technology
• Part Number: MICRF218AYQS
• Device Type: 300 MHz to 450 MHz ASK/OOK receiver with selectable IF bandwidth
• Receiver Architecture: Integrated ASK/OOK receiver with selectable IF bandwidths
• Frequency Range: 300 MHz to 450 MHz
• Modulation: ASK / OOK receiver operation
• Bandwidth Control: Selectable dual IF bandwidth architecture
• Application Class: RKE, remote control and low-power telemetry receiver
• System Role: Sub-GHz receiver IC for simple antenna-to-data designs
• Package / Case: 16-pin QSOP package family, ordering suffix YQS
• Design Notes: Set the IF bandwidth option and external reference for the selected regional band.

Applications

Remote keyless entry, wireless sensors, alarms, remote controls and low-power proprietary receiver modules.

Receiver boards that need selectable IF bandwidth to support different data rates and link conditions.

Quality & Sourcing

Antrex Electronics can support sourcing for MICRF218AYQS through available stock checks, BOM consolidation and alternative-lot checking. For RF receiver ICs, lot/date code, package condition, moisture sensitivity handling and original labeling should be checked before shipment.

For project builds or shortage support, Antrex Electronics can coordinate visual inspection, packaging verification and third-party electrical or authenticity testing when required. This helps buyers manage risk when sourcing discontinued, legacy or hard-to-find RF receiver parts.