SWRS353 April   2025 CC3350MOD , CC3351MOD

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Functional Block Diagrams
  6. 5 Pin Configuration and Functions
    1. 5.1 Pin Diagram
    2. 5.2 Pin Descriptions
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Electrical Characteristics
    5. 6.5  WLAN Performance: 2.4GHz Receiver Characteristics
    6. 6.6  WLAN Performance: 2.4GHz Transmitter Power
    7. 6.7  WLAN Performance: 5GHz Receiver Characteristics
    8. 6.8  WLAN Performance: 5GHz Transmitter Power
    9. 6.9  BLE Performance: Receiver Characteristics
    10. 6.10 BLE Performance: Transmitter Characteristics
    11. 6.11 Current Consumption: 2.4GHz WLAN Static Modes
    12. 6.12 Current Consumption: 5GHz WLAN Static Modes
    13. 6.13 Current Consumption: 2.4GHz WLAN Use Cases
    14. 6.14 Current Consumption: 5GHz WLAN Use Cases
    15. 6.15 Current Consumption: BLE Static Modes
    16. 6.16 Current Consumption: BLE Use Cases
    17. 6.17 Current Consumption: Device Modes
    18. 6.18 Timing and Switching Characteristics
      1. 6.18.1 Power Supply Sequencing
      2. 6.18.2 Clocking Specifications
        1. 6.18.2.1 Slow Clock Generated Internally
        2. 6.18.2.2 Slow Clock Using an External Oscillator
    19. 6.19 Interface Timing Characteristics
      1. 6.19.1 SDIO Timing Specifications
        1. 6.19.1.1 SDIO Timing Diagram: Default Speed
        2. 6.19.1.2 SDIO Timing Diagram: High Speed
      2. 6.19.2 SPI Timing Specifications
        1. 6.19.2.1 SPI Timing Diagram
        2. 6.19.2.2 SPI Timing Parameters
      3. 6.19.3 UART 4-Wire Interface
        1. 6.19.3.1 UART Timing Parameters
  8. 7 Device Certification
    1. 7.1 FCC Certification and Statement
    2. 7.2 IC/ISED Certification and Statement
    3. 7.3 ETSI/CE
    4. 7.4 MIC Certification
    5. 7.5 Manual Information to the End User
    6. 7.6 Module Markings
      1. 7.6.1 Test Grades
  9. 8 Application Information
    1. 8.1 Typical Application—CC335xMOD Reference Design
    2. 8.2 Design Recommendations
      1. 8.2.1 General Layout Recommendations
      2. 8.2.2 CC335xMOD RF Layout Recommendations
      3. 8.2.3 Thermal Board Recommendations
  10. 9 Device and Documentation Support
    1. 9.1 Third-Party Products Disclaimer
    2. 9.2 Device Nomenclature Boilerplate
    3. 9.3 Tools and Software
    4. 9.4 Documentation Support
    5. 9.5 Support Resources
    6. 9.6 Trademarks
    7. 9.7 Electrostatic Discharge Caution
    8. 9.8 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
  • MOZ|65
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.2 CC335xMOD RF Layout Recommendations

The RF section of this wireless module gets top priority in terms of layout. It is very important for the RF section to be laid out correctly to ensure optimum performance from the module. A poor layout can cause low-output power, EVM degradation, sensitivity degradation, and mask violations.

The image below shows the RF placement and routing of the CC3351MOD module with an external antenna.

CC3350MOD CC3351MOD RF Section Layout Figure 8-2 RF Section Layout

Follow these RF layout recommendations for the CC335xMOD device:

  • RF traces must have 50Ω impedance and should be no shorter than 9.24mm.
  • RF trace bends must be made with gradual curves, and 90° bends must be avoided.
  • RF traces must not have sharp corners.
  • There must be no traces or ground under the antenna section.
  • RF traces must have via stitching on the ground plane beside the RF trace on both sides.
  • RF traces must be as short as possible. The antenna, RF traces, and the module must be on the edge of the PCB product in consideration of the product enclosure material and proximity.