SWRA680 November   2020 CC3100 , CC3120 , CC3135 , CC3200 , CC3220R , CC3220S , CC3220SF , CC3235S , CC3235SF

 

  1.   Abstract
  2.   Trademarks
  3. 1Crystal Oscillator Basics
    1. 1.1 Crystal Oscillator Model
  4. 2Crystal Selection
    1. 2.1 Crystal Mode of Operation
    2. 2.2 Temperature Tolerance
    3. 2.3 Aging (Long-Term Stability)
    4. 2.4 Crystal ESR
    5. 2.5 Frequency Accuracy
    6. 2.6 Drive Level
    7. 2.7 Selecting a crystal
      1. 2.7.1 Crystal Specifications
      2. 2.7.2 Recommended Crystals for the CC31xx and CC32xx
  5. 3Crystal Tuning
    1. 3.1 The importance of Crystal Tuning
    2. 3.2 Load Capacitance
    3. 3.3 Crystal Tuning With CL
  6. 4Measuring the ppm Error for the Fast Clock (High Frequency)
    1. 4.1 Setting Up for the CC3x00 Devices
    2. 4.2 Setting Up for the CC3x20 and CC3x35 Devices
    3. 4.3 Measuring ppm Frequency Error
  7. 5PCB Layout Guidelines
    1. 5.1 The 32.768-kHz Crystal (Slow Clock)
    2. 5.2 The 40-MHz Crystal (Fast Clock)
  8. 6References

6 References

  1. Texas Instruments: Crystal Oscillator and Crystal Selection for the CC26xx and CC13xx Family of Wireless MCUs
  2. IEEE Standard for Information technology—Telecommunications and information exchange between systems Local and metropolitan area networks—Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications," in IEEE Std 802.11-2016 (Revision of IEEE Std 802.11-2012) , vol., no., pp. 2242, 14 Dec. 2016, doi: 10.1109/IEEESTD.2016.7786995. https://ieeexplore.ieee.org/document/7786995
  3. Texas Instruments: CC3100 and CC3200 SimpleLink™ Wi-Fi® and Internet of Things Solution Layout Guidelines User's Guide
  4. Texas Instruments: CC3120 and CC3220 SimpleLink™ Wi-Fi® and IoT Solution Layout Guidelines
  5. Texas Instruments: CC3x35 SimpleLink™ Wi-Fi® and IoT Solution Layout Guidelines
  6. Texas Instruments: CC3100 SimpleLink™ Wi-Fi® Network Processor, Internet-of-Things Solution for MCU Applications Data Sheet
  7. Texas Instruments: CC3200 SimpleLink™ Wi-Fi® and Internet-of-Things Solution, a Single-Chip Wireless MCU Data Sheet
  8. Texas Instruments: CC3120 SimpleLink™ Wi-Fi® Wireless Network Processor, Internet-of-Things Solution for MCU Applications Data Sheet
  9. Texas Instruments: CC3220R, CC3220S, and CC3220SF SimpleLink™ Wi-Fi® Single-Chip Wireless MCU Solutions Data Sheet
  10. Texas Instruments: CC3100 SimpleLink™ Wi-Fi® Network Processor, Internet-of-Things Solution for MCU Applications Data Sheet
  11. CC3235S and CC3235SF SimpleLink™ Wi-Fi®, Dual-Band, Single-Chip Solution Data Sheet
  12. Hardware design reviews for SimpleLink™ Wi-Fi devices. Retrieved from: https://www.ti.com/tool/SIMPLELINK-WIFI-DESIGN-REVIEWS
  13. Texas Instruments: CC3100 SimpleLink Wi-Fi Wireless Networking Solution Booster Pack Design Files
  14. Texas Instruments: SimpleLink™ Wi-Fi® CC3100, CC3200 UniFlash User's Guide
  15. Texas Instruments: CC3x20, CC3x35 SimpleLink™ Wi-Fi® and Internet-on-a chip™ Solution Radio Tool User's Guide

For more device-specific PCB guidelines, see one of the following documents (depending on device):

  1. For CC3x00, see the CC3100 and CC3200 SimpleLink™ Wi-Fi® and Internet of Things Solution Layout Guidelines User's Guide.
  2. For CC3x20, see the CC3120 and CC3220 SimpleLink™ Wi-Fi® and IoT Solution Layout Guidelines.
  3. For CC3x35, see the CC3135 and CC3235 SimpleLink™ Wi-Fi® and IoT Solution Layout Guidelines User's Guide.