MICRF103BM

RF Transmitter Overview

The MICRF103BM is an RF transmitter IC from Microchip Technology, designed for ASK and OOK modulation protocols. It operates within the UHF frequency range of 800MHz to 1GHz. The device delivers a typical output power of -3dBm and supports maximum data rates up to 115kbps. It functions on a supply voltage of 4.75V to 5.5V with a transmission current of 19mA. The component is housed in an 8-SOIC package (0.154 inch width) and is rated for industrial temperatures between -40°C and 85°C.

RF Transmitter Feature Summary

• Supports ASK and OOK modulation schemes for wireless communication
• Integrated PCB surface mount antenna design
• Operates within standard industrial temperature ranges

RF Transmitter Applications

• Remote Keyless Entry (RKE) systems
• Wireless remote control applications
• Low-speed data telemetry links

RF Transmitter Procurement Notes

Verify component authenticity through authorized distributors as counterfeit risks exist for legacy RF parts. Confirm RoHS compliance status, as older revisions may not meet current environmental standards. Check lead times carefully since this part may be discontinued or subject to limited availability. Ensure the specific suffix matches the required packaging format for your assembly line.

RF Transmitter Selection Notes

Select the MICRF103BM when designing UHF transmitters requiring simple ASK/OOK modulation without complex baseband processing. It is suitable for applications needing moderate data rates up to 115kbps. Consider the integrated antenna feature if board space is constrained. Verify that the 800-1GHz frequency band aligns with regional regulatory requirements for your target market.

RF Transmitter Part Context

This component belongs to the QWIKRADIO series of low-cost RF transmitters. It simplifies wireless design by integrating the oscillator and modulator. The MICRF103BM serves as a direct upgrade path for older Micrel products acquired by Microchip. It targets cost-sensitive applications where high throughput is not the primary requirement.

RF Transmitter Replacement Considerations

The MICRF102YM is listed as a direct substitute. However, it operates at lower frequencies (300-470MHz) and has different electrical characteristics. Verify compatibility before swapping, as frequency changes may affect regulatory compliance and link performance.

RF Transmitter FAQ

What modulation types does the MICRF103BM support?

The MICRF103BM supports Amplitude Shift Keying (ASK) and On-Off Keying (OOK) modulation protocols.

Is the MICRF103BM RoHS compliant?

Public documentation indicates that earlier versions of this family may not be fully RoHS compliant; verify the specific batch status with the manufacturer.