ZHCSFW7C december   2016  – september 2020 CC2640R2F

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Functional Block Diagram
  5. 5 Revision History
  6. 6 Device Comparison
    1. 6.1 Related Products
  7. 7 Terminal Configuration and Functions
    1. 7.1 Pin Diagram – RGZ Package
    2. 7.2 Signal Descriptions – RGZ Package
    3. 7.3 Pin Diagram – RHB Package
    4. 7.4 Signal Descriptions – RHB Package
    5. 7.5 Pin Diagram – YFV (Chip Scale, DSBGA) Package
    6. 7.6 Signal Descriptions – YFV (Chip Scale, DSBGA) Package
    7. 7.7 Pin Diagram – RSM Package
    8. 7.8 Signal Descriptions – RSM Package
  8. 8 Specifications
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  ESD Ratings
    3. 8.3  Recommended Operating Conditions
    4. 8.4  Power Consumption Summary
    5. 8.5  General Characteristics
    6. 8.6  125-kbps Coded (Bluetooth 5) – RX
    7. 8.7  125-kbps Coded (Bluetooth 5) – TX
    8. 8.8  500-kbps Coded (Bluetooth 5) – RX
    9. 8.9  500-kbps Coded (Bluetooth 5) – TX
    10. 8.10 1-Mbps GFSK (Bluetooth low energy) – RX
    11. 8.11 1-Mbps GFSK (Bluetooth low energy) – TX
    12. 8.12 2-Mbps GFSK (Bluetooth 5) – RX
    13. 8.13 2-Mbps GFSK (Bluetooth 5) – TX
    14. 8.14 24-MHz Crystal Oscillator (XOSC_HF)
    15. 8.15 32.768-kHz Crystal Oscillator (XOSC_LF)
    16. 8.16 48-MHz RC Oscillator (RCOSC_HF)
    17. 8.17 32-kHz RC Oscillator (RCOSC_LF)
    18. 8.18 ADC Characteristics
    19. 8.19 Temperature Sensor
    20. 8.20 Battery Monitor
    21. 8.21 Continuous Time Comparator
    22. 8.22 Low-Power Clocked Comparator
    23. 8.23 Programmable Current Source
    24. 8.24 Synchronous Serial Interface (SSI)
    25. 8.25 DC Characteristics
    26. 8.26 Thermal Resistance Characteristics
    27. 8.27 Timing Requirements
    28. 8.28 Switching Characteristics
    29. 8.29 Typical Characteristics
  9. 9 Detailed Description
    1. 9.1  Overview
    2. 9.2  Functional Block Diagram
    3. 9.3  Main CPU
    4. 9.4  RF Core
    5. 9.5  Sensor Controller
    6. 9.6  Memory
    7. 9.7  Debug
    8. 9.8  Power Management
    9. 9.9  Clock Systems
    10. 9.10 General Peripherals and Modules
    11. 9.11 Voltage Supply Domains
    12. 9.12 System Architecture
  10. 10Application, Implementation, and Layout
    1. 10.1 Application Information
    2. 10.2 5 × 5 External Differential (5XD) Application Circuit
      1. 10.2.1 Layout
    3. 10.3 4 × 4 External Single-ended (4XS) Application Circuit
      1. 10.3.1 Layout
  11. 11Device and Documentation Support
    1. 11.1  Device Nomenclature
    2. 11.2  Tools and Software
    3. 11.3  Documentation Support
    4. 11.4  Texas Instruments Low-Power RF Website
    5. 11.5  Low-Power RF eNewsletter
    6. 11.6  支持资源
    7. 11.7  Trademarks
    8. 11.8  静电放电警告
    9. 11.9  Export Control Notice
    10. 11.10 术语表
  12. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Packaging Information

8.17 32-kHz RC Oscillator (RCOSC_LF)

Measured on the TI CC2650EM-5XD reference design with Tc = 25°C, VDDS = 3.0 V, unless otherwise noted.
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
Calibrated frequency(1)32.8kHz
Temperature coefficient80ppm/°C
(1) The frequency accuracy of the Real Time Clock (RTC) is not directly dependent on the frequency accuracy of the 32-kHz RC Oscillator. The RTC can be calibrated to an accuracy within ±500 ppm of 32.768 kHz by measuring the frequency error of RCOSC_LF relative to XOSC_HF and compensating the RTC tick speed. The procedure is explained in Running Bluetooth® Low Energy on CC2640 Without 32 kHz Crystal.
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