CC1121RHBR

RF Transceiver ICS Overview

The CC1121RHBR is a high-performance, low-power RF transceiver integrated with an MCU, manufactured by Texas Instruments. It operates within the sub-1 GHz ISM bands, specifically covering frequency ranges of 164–192 MHz, 274–320 MHz, 410–480 MHz, and 820–960 MHz. The device supports data rates up to 200 kbps and delivers an output power of 16 dBm with a receiver sensitivity of -120 dBm at 1.2 kbps. It accepts supply voltages between 2 V and 3.6 V, drawing 17–23 mA during reception and 26–54 mA during transmission. Packaged in a 32-VQFN (5x5 mm) with exposed pad, it features SPI interface, 4 kB ROM, 256 B RAM, and four GPIOs, operating from -40°C to +85°C.

RF Transceiver ICS Feature Summary

• Integrates a microcontroller unit with RF transceiver capabilities for system-level efficiency
• Supports multiple modulation schemes including 2FSK, 2GFSK, 4FSK, 4GFSK, MSK, and OOK
• Provides excellent receiver sensitivity across wide frequency ranges below 1 GHz
• Utilizes serial peripheral interface for digital control and configuration

RF Transceiver ICS Applications

• Wireless sensor networks requiring long-range communication
• Industrial telemetry and monitoring systems
• Smart metering applications in utility infrastructure
• Low-power wireless remote control devices

RF Transceiver ICS Procurement Notes

Verify the specific suffix RHBR corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 32-VQFN package dimensions align with the printed circuit board footprint design. Ensure voltage levels on the SPI interface are compatible with the host microcontroller logic levels to prevent signal integrity issues or damage.

RF Transceiver ICS Selection Notes

Select this component when both RF connectivity and local processing are needed within a single chip to reduce bill of materials count. The integrated MCU allows for protocol handling and data preprocessing, minimizing host processor load. Consider the 16 dBm output power for extended range requirements compared to lower-power alternatives. Verify that the available frequency bands match regional regulatory constraints for ISM usage.

RF Transceiver ICS Part Context

This part belongs to the CC1121 family of high-performance sub-1 GHz transceivers. It is designed as a cost-effective solution for applications demanding reliable wireless communication with minimal external components. The integration of memory and processing resources distinguishes it from standard transceivers that require separate microcontrollers.

RF Transceiver ICS Replacement Considerations

CC1121RHBT is the equivalent leaded version of this component.