CC1125RHMR

RF Transceiver ICS Overview

The CC1125RHMR is an ultra-high performance RF narrowband transceiver from Texas Instruments, operating in the sub-1 GHz range. It supports frequency bands of 164–192 MHz, 274–320 MHz, 410–480 MHz, and 820–960 MHz. The device features a maximum data rate of 200 kb/s with modulation formats including 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, ASK, MSK, and OOK. It operates on a supply voltage of 2 V to 3.6 V, drawing 17 mA during reception and 47 mA during transmission. The output power reaches 16 dBm, with a sensitivity of -129 dBm. It utilizes an SPI interface and is housed in a VQFN-32 package.

RF Transceiver ICS Feature Summary

• Ultra-high performance single-chip architecture designed for narrowband applications
• Programmable output power up to +16 dBm with 0.4-dB step size control
• High adjacent channel selectivity of 67 dB at 6.25 kHz offset
• Supports multiple modulation schemes including FSK, GFSK, MSK, and OOK

RF Transceiver ICS Applications

• Wireless sensor networks
• Industrial telemetry systems
• Smart metering infrastructure
• Low-power wireless remote controls

RF Transceiver ICS Procurement Notes

Verify the specific suffix RHMR against the official Texas Instruments datasheet to confirm pinout and packaging details. Ensure compatibility with the required frequency bands and modulation standards for your design. Check moisture sensitivity levels and reflow soldering profiles prior to assembly. Confirm that the VQFN-32 package dimensions match your PCB footprint requirements exactly.

RF Transceiver ICS Selection Notes

Select this component when high sensitivity and strong adjacent channel rejection are critical for reliable communication in noisy environments. The programmable power amplifier allows for optimized battery life in low-power applications. Consider the SPI interface complexity and available GPIO pins for system integration. Evaluate the thermal performance within the specified -40°C to +85°C operating range for your enclosure design.

RF Transceiver ICS Part Context

The CC1125 belongs to Texas Instruments' family of high-performance RF transceivers targeting sub-1 GHz ISM bands. It is designed to replace older discrete solutions by integrating the radio, synthesizer, and baseband processor into a single chip. This integration reduces board space and simplifies design complexity for industrial and commercial wireless applications requiring robust long-range connectivity.

RF Transceiver ICS Replacement Considerations

Public confirmed substitute part numbers: CC1125RHBR.