SWRS301 September   2026 CC1407P

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Power Consumption (Power Modes)
    5. 6.5  Power Consumption (Radio Modes)
    6. 6.6  RF Frequency Bands
    7. 6.7  Reset Timing
    8. 6.8  Temperature Sensor
    9. 6.9  Battery Monitor
    10. 6.10 GPIO DC Characteristics
    11. 6.11 SPI Characteristics
    12. 6.12 DC/DC
    13. 6.13 48MHz Crystal Oscillator (HFXT)
    14. 6.14 48MHz Clock Output Buffer
    15. 6.15 48MHz Clock Input (TCXO)
    16. 6.16 32kHz RC Oscillator (LFOSC)
    17. 6.17 782MHz - 957MHz Receive (RX)
    18. 6.18 782 MHz - 957 MHz Transmit (TX)
    19. 6.19 RF PLL Phase Noise and Spurious
  8. 7 Detailed Description
    1. 7.1 Radio (RF Core)
    2. 7.2 Memory
    3. 7.3 Battery and Temperature Monitor
    4. 7.4 Proprietary Radio Form
    5. 7.5 Power Management
  9. 8 Application, Implementation, and Layout
    1. 8.1 Reference Designs
      1. 8.1.1 Highest Performance
      2. 8.1.2 Long Range low external Bill of Material
      3. 8.1.3 Antenna Kit for LaunchPad
    2. 8.2 Junction Temperature Calculation
  10. 9 Device and Documentation Support
    1. 9.1 Device Nomenclature
    2. 9.2 Tools and Software
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Documentation Support
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Export Control Notice
    8. 9.8 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Packaging Information

6.13 48MHz Crystal Oscillator (HFXT)

Measured on a Texas Instruments reference design with Tc = 25°C, VDDS = 3.6V, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Crystal frequency Recommended BOM and layout 48 MHz
ESR Equivalent series resistance 6 pF < CL ≤ 9 pF 20 60 Ω
ESR Equivalent series resistance 5 pF < CL ≤  6 pF 80 Ω
CL Crystal load capacitance(3) 5 7(2) 9 pF
Start-up time(1)  Until clock is qualified, 48MHz crystals only 200 µs
(1) Start-up time using the TI-provided power driver. Start-up time may increase if driver is not used.
(2) On-chip default connected capacitance including reference design parasitic capacitance.
(3) Adjustable load capacitance is integrated into the device. External load capacitors are required for systems targeting compliance with certain regulations.