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TI CC1101 Low-Power Sub-1GHz RF Transceiver

CC1101The embedded systems usually require Radio Frequency (RF) communications. In order to provide a consistence RF support for electronic product development, applicable for industrial automation, instrumentation, automotive, medical devices, consumer, etc. we have included in our portfolio of peripherals the transceiver CC1100 and his evolution the CC1101 from Texas Instruments (TI).

TI is a global analog and digital semiconductor IC design and manufacturing company. In addition to analog technologies, digital signal processing (DSP) and microcontroller (MCU) semiconductors, TI designs and manufactures semiconductor solutions for analog and digital embedded and application processing. TI is very strong in RF communications solution and low power IC solutions.

CC1101 is a low-cost sub-1 GHz transceiver designed for very low-power wireless applications. The circuit is mainly intended for the ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency bands at 315, 433, 868, and 915 MHz, but can easily be programmed for operation at other frequencies in the 300-348 MHz, 387-464 MHz and 779-928 MHz bands.

CC1101 is an improved and code compatible version of the CC1100 RF transceiver. The main improvements on the CC1101 include:

  • Improved spurious response
  • Better close-in phase noise thus improved Adjacent Channel Power (ACP) performance
  • Higher input saturation level
  • Improved output power ramping
  • Extended frequency bands of operation, i.e.


  • RF Performance
    • High sensitivity
      • 116 dBm at 0.6 kBaud, 433 MHz, 1% packet error rate
      • 112 dBm at 1.2 kBaud, 868 MHz, 1% packet error rate
    • Low current consumption (14.7 mA in RX, 1.2 kBaud, 868 MHz)
    • Programmable output power up to +12 dBm for all supported frequencies
    • Excellent receiver selectivity and blocking performance
    • Programmable data rate from 0.6 to 600 kbps
    • Frequency bands: 300-348 MHz, 387-464 MHz and 779-928 MHz
  • Analog Features
    • 2-FSK, 4-FSK, GFSK, and MSK supported as well as OOK and flexible ASK shaping
    • Suitable for frequency hopping systems due to a fast
    • settling frequency synthesizer; 75 µs settling time
    • Automatic Frequency Compensation (AFC) can be used to align the frequency synthesizer to the received signal centre frequency
    • Integrated analog temperature sensor
  • Digital Features
    • Flexible support for packet oriented systems; On-chip support for sync word detection, address check, flexible packet length, and automatic CRC handling
    • Efficient SPI interface; All registers can be programmed with one "burst" transfer
    • Digital RSSI output
    • Programmable channel filter bandwidth
    • Programmable Carrier Sense (CS) indicator

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