SWAS037C February   2019  – December 2024 CC3135

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Functional Block Diagram
  6. 5 Device Comparison
    1. 5.1 Related Products
  7. 6 Pin Configuration and Functions
    1. 6.1 Pin Diagram
    2. 6.2 Pin Attributes
    3. 6.3 Signal Descriptions
      1.      12
    4. 6.4 Connections for Unused Pins
  8. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Power-On Hours (POH)
    4. 7.4  Recommended Operating Conditions
    5. 7.5  Current Consumption Summary: 2.4 GHz RF Band
    6. 7.6  Current Consumption Summary: 5 GHz RF Band
    7. 7.7  TX Power Control for 2.4 GHz Band
    8. 7.8  TX Power Control for 5 GHz
    9. 7.9  Brownout and Blackout Conditions
      1.      24
    10. 7.10 Electrical Characteristics for DIO Pins
      1.      26
      2.      27
    11. 7.11 Electrical Characteristics for Pin Internal Pullup and Pulldown
    12. 7.12 WLAN Receiver Characteristics
      1.      30
      2.      31
    13. 7.13 WLAN Transmitter Characteristics
      1.      33
      2.      34
    14. 7.14 WLAN Transmitter Out-of-Band Emissions
      1.      36
      2.      37
    15. 7.15 BLE/2.4 GHz Radio Coexistence and WLAN Coexistence Requirements
    16. 7.16 Thermal Resistance Characteristics for RGK Package
    17. 7.17 Timing and Switching Characteristics
      1. 7.17.1 Power Supply Sequencing
      2. 7.17.2 Device Reset
      3. 7.17.3 Reset Timing
        1. 7.17.3.1 nRESET (32-kHz Crystal)
        2.       45
        3. 7.17.3.2 nRESET (External 32-kHz Crystal)
          1.        47
      4. 7.17.4 Wakeup From HIBERNATE Mode
        1.       49
      5. 7.17.5 Clock Specifications
        1. 7.17.5.1 Slow Clock Using Internal Oscillator
          1.        52
        2. 7.17.5.2 Slow Clock Using an External Clock
          1.        54
        3. 7.17.5.3 Fast Clock (Fref) Using an External Crystal
          1.        56
        4. 7.17.5.4 Fast Clock (Fref) Using an External Oscillator
          1.        58
      6. 7.17.6 Interfaces
        1. 7.17.6.1 Host SPI Interface Timing
          1.        61
        2. 7.17.6.2 Flash SPI Interface Timing
          1.        63
        3. 7.17.6.3 DIO Interface Timing
          1. 7.17.6.3.1 DIO Output Transition Time Parameters (Vsupply = 3.3 V)
            1.         66
          2. 7.17.6.3.2 DIO Input Transition Time Parameters
            1.         68
    18. 7.18 External Interfaces
      1. 7.18.1 SPI Flash Interface
      2. 7.18.2 SPI Host Interface
      3. 7.18.3 Host UART Interface
        1. 7.18.3.1 5-Wire UART Topology
        2. 7.18.3.2 4-Wire UART Topology
        3. 7.18.3.3 3-Wire UART Topology
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Device Features
      1. 8.2.1 WLAN
      2. 8.2.2 Network Stack
      3. 8.2.3 Security
      4. 8.2.4 Host Interface and Driver
      5. 8.2.5 System
    3. 8.3 FIPS 140-2 Level 1 Certification
    4. 8.4 Power-Management Subsystem
      1. 8.4.1 VBAT Wide-Voltage Connection
    5. 8.5 Low-Power Operating Modes
      1. 8.5.1 Low-Power Deep Sleep
      2. 8.5.2 Hibernate
      3. 8.5.3 Shutdown
    6. 8.6 Memory
      1. 8.6.1 External Memory Requirements
    7. 8.7 Restoring Factory Default Configuration
    8. 8.8 Hostless Mode
  10. 9 Applications, Implementation, and Layout
    1. 9.1 Application Information
      1. 9.1.1 BLE/2.4GHz Radio Coexistence
      2. 9.1.2 Antenna Selection
      3. 9.1.3 Typical Application
    2. 9.2 PCB Layout Guidelines
      1. 9.2.1 General PCB Guidelines
      2. 9.2.2 Power Layout and Routing
        1. 9.2.2.1 Design Considerations
      3. 9.2.3 Clock Interface Guidelines
      4. 9.2.4 Digital Input and Output Guidelines
      5. 9.2.5 RF Interface Guidelines
  11. 10Device and Documentation Support
    1. 10.1  Third-Party Products Disclaimer
    2. 10.2  Tools and Software
    3. 10.3  Firmware Updates
    4. 10.4  Device Nomenclature
    5. 10.5  Documentation Support
    6. 10.6  Support Resources
    7. 10.7  Trademarks
    8. 10.8  Electrostatic Discharge Caution
    9. 10.9  Export Control Notice
    10. 10.10 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Packaging Information
    2. 12.2 Tape and Reel Information

Package Options

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

9.1.2 Antenna Selection

The CC3135 device is designed to also support antenna selection and is controlled from Image Creator. When enabled, there are three options possible options:

  • ANT 1: When selected, the GPIOs that are defined for antenna selection with set the RF path for antenna 1.
  • ANT 2: When selected, the GPIOs that are defined for antenna selection will set the RF path for antenna 2.
  • Autoselect: When selected, during a scan and prior to connecting to an AP, CC3135 device will determine the best RF path and select the appropriate antenna (12)(13). The result is the saved as port of the profile.

Figure 9-5 shows the implementation of a complete Bluetooth® low energy and WLAN coexistence network with the WLAN operating on either a 2.4- or a 5GHz band with antenna selection. The SOP lines control the 5GHz switch. The Coex switch is controlled by a GPIO signal from the BLE device and a GPIO signal from the CC3135 device. The Antenna switch is controlled by two GPIO lines from the CC3135 device.

CC3135 Antenna Selection Solution with Coexistence Solution and 5GHz Wi-Fi®Figure 9-5 Antenna Selection Solution with Coexistence Solution and 5GHz Wi-Fi®

 

Figure 9-6 shows the antenna selection implementation for Wi-Fi®, with BLE operating on its own antenna. The SOP lines control the 5GHz switch. Note in this implementation no Coex switch is required and only a single GPIO from the BLE device to the CC3135 device is required. The Antenna switch is controlled by two GPIO lines from the CC3135 device.

CC3135 Coexistence Solution with Wi-Fi Antenna Selection and Dedicated BLE AntennaFigure 9-6 Coexistence Solution with Wi-Fi Antenna Selection and Dedicated BLE Antenna
12. When selecting Autoselect through the API, a reset is required for the CC3135 device to determine the best antenna for use.