RF803E

Overview

The RF803E is an encoder integrated circuit manufactured by RF Solutions, designed for remote control and radio telemetry applications. It features three digital switch inputs (IP1-IP3) that trigger automatic transmission of a secure data packet upon closure. The device utilizes a balanced Manchester encoded protocol and incorporates a unique 16-bit serial number for addressing, supporting up to 65,536 possible addresses. It operates on a supply voltage between 2.5V and 5.5V with a typical standby current of 0.1 µA. The IC provides a CMOS/TTL compatible TX output for direct connection to RF modules.

Feature Summary

• Three active-low digital switch inputs (IP1, IP2, IP3) for user interface
• Manchester encoded data protocol for reliable radio transmission
• Unique 16-bit factory-programmed serial number for secure addressing
• Low power consumption with 0.1 µA standby current and sleep mode capability

Applications

• Remote control systems
• Radio telemetry
• RFID applications

Procurement Notes

Verify the specific package variant required, as the RF803E is available in both 6-pin SOT-23 and 8-pin PDIP configurations. Confirm compatibility with the intended receiver decoder, such as the RF803D or FireFly series units, to ensure proper pairing functionality. Check for RoHS compliance status if environmental regulations apply to the end product.

Selection Notes

Select the RF803E when a transmitter-side encoding solution is needed for RF Solutions compatible receivers. Choose the 8-pin PDIP package for through-hole mounting requirements or the 6-pin SOT-23 for surface-mount designs. Ensure the application supports the 2.5V to 5.5V operating voltage range and requires manual switch activation for data transmission.

Part Context

The RF803E belongs to the RF800 series chipset from RF Solutions, which includes complementary decoders like the RF803D. This series is designed to work together to create complete remote control systems. The E suffix denotes the Encoder function, distinguishing it from the D suffix Decoder variant. The components are compatible with various RF Solutions transmitter and receiver modules.

Replacement Considerations

Direct replacements within the same family include other RF800 series encoders if pinouts and functions align. Custom versions of the RF803E/RF803D chipset are available for OEM applications requiring bespoke solutions. Verify that any substitute maintains the 16-bit addressing scheme and Manchester encoding protocol.