690

Overview

The SparkFun Electronics part number 690, also identified as COM-00690, is an integrated RF transceiver and microcontroller unit designed for ISM band applications above 1 GHz. It operates within the 2.4 GHz to 2.525 GHz frequency range and supports GFSK modulation with a maximum data rate of 2 Mbps. The device features a sensitivity of -94 dBm and delivers 0 dBm output power. It functions on a supply voltage of 1.9 V to 3.6 V, consuming between 8.9 mA and 13.5 mA during reception and 120 µA to 11.3 mA during transmission. Communication is managed via a serial SPI interface. The component is housed in a 20-VFQFN package with a bare pad, measuring 4x4 mm, and is rated for operation between -40°C and 85°C.

Feature Summary

• Integrates RF transceiver functionality with a microcontroller unit for compact system design
• Supports GFSK modulation for reliable wireless communication in the 2.4 GHz ISM band
• Utilizes a serial peripheral interface (SPI) for digital control and data transfer

Applications

• Wireless sensor network nodes requiring integrated processing and transmission
• Short-range IoT devices operating in the 2.4 GHz spectrum
• General purpose ISM band communication modules

Procurement Notes

Verify the specific manufacturer part number against official distributor catalogs to ensure accuracy, as identifiers such as COM-00690 may vary across platforms. Confirm that the required 20-VFQFN package matches your PCB footprint specifications. Check current availability status, as components may be subject to order-based manufacturing or discontinuation notices from SparkFun Electronics. Ensure compliance with RoHS3 standards if required by your project regulations.

Selection Notes

Select this component when a combined MCU and RF solution is needed to minimize board space and complexity. The 2.4 GHz frequency range is suitable for general ISM applications but requires consideration of local regulatory constraints. The wide operating temperature range allows use in varied environmental conditions. Verify that the SPI interface compatibility aligns with the host processor's capabilities and that the supply voltage requirements fit the system power budget.

Part Context

This component is manufactured by SparkFun Electronics, a company known for providing electronic parts and development tools for prototyping and educational projects. The part falls under the category of RF and wireless transceivers with integrated microcontrollers. It is distinct from other SparkFun products like motion control kits or tool sets, focusing specifically on wireless communication hardware. The product is listed under the base part number COM-006.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult official distributor databases for equivalent RF transceiver+MCU combinations with similar pinouts and specifications.