SWRS205E March   2017  – May 2021 CC3120MOD

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Functional Block Diagrams
  5. 5 Revision History
  6. 6 Device Comparison
    1. 6.1 Related Products
  7. 7 Terminal Configuration and Functions
    1. 7.1 CC3120MOD Pin Diagram
    2. 7.2 Pin Attributes
      1.      11
    3. 7.3 Connections for Unused Pins
  8. 8 Specifications
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  ESD Ratings
    3. 8.3  Recommended Operating Conditions
    4. 8.4  Current Consumption Summary
    5. 8.5  TX Power and IBAT versus TX Power Level Settings
    6. 8.6  Brownout and Blackout Conditions
    7. 8.7  Electrical Characteristics
    8. 8.8  WLAN Receiver Characteristics
    9. 8.9  WLAN Transmitter Characteristics
    10. 8.10 Reset Requirement
    11. 8.11 Thermal Resistance Characteristics for MOB Package
    12. 8.12 Timing and Switching Characteristics
      1. 8.12.1 Power-Up Sequencing
      2. 8.12.2 Power-Down Sequencing
      3. 8.12.3 Device Reset
      4. 8.12.4 Wakeup From HIBERNATE Mode Timing
    13. 8.13 External Interfaces
      1. 8.13.1 SPI Host Interface
      2. 8.13.2 Host UART Interface
        1. 8.13.2.1 5-Wire UART Topology
        2. 8.13.2.2 4-Wire UART Topology
        3. 8.13.2.3 3-Wire UART Topology
      3. 8.13.3 External Flash Interface
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Module Features
      1. 9.2.1 WLAN
      2. 9.2.2 Network Stack
        1. 9.2.2.1 Security
      3. 9.2.3 Host Interface and Driver
      4. 9.2.4 System
    3. 9.3 Power-Management Subsystem
      1. 9.3.1 VBAT Wide-Voltage Connection
    4. 9.4 Low-Power Operating Modes
      1. 9.4.1 Low-Power Deep Sleep
      2. 9.4.2 Hibernate
      3. 9.4.3 Shutdown
    5. 9.5 Restoring Factory Default Configuration
    6. 9.6 Device Certification and Qualification
      1. 9.6.1 FCC Certification and Statement
      2. 9.6.2 Industry Canada (IC) Certification and Statement
      3. 9.6.3 ETSI/CE Certification
      4. 9.6.4 Japan MIC Certification
      5. 9.6.5 SRRC Certification and Statement
    7. 9.7 Module Markings
    8. 9.8 End Product Labeling
    9. 9.9 Manual Information to the End User
  10. 10Applications, Implementation, and Layout
    1. 10.1 Application Information
      1. 10.1.1 Typical Application
      2. 10.1.2 Power Supply Decoupling and Bulk Capacitors
      3. 10.1.3 Reset
      4. 10.1.4 Unused Pins
    2. 10.2 PCB Layout Guidelines
      1. 10.2.1 General Layout Recommendations
      2. 10.2.2 RF Layout Recommendations
      3. 10.2.3 Antenna Placement and Routing
      4. 10.2.4 Transmission Line Considerations
  11. 11Environmental Requirements and Specifications
    1. 11.1 Temperature
      1. 11.1.1 PCB Bending
    2. 11.2 Handling Environment
      1. 11.2.1 Terminals
      2. 11.2.2 Falling
    3. 11.3 Storage Condition
      1. 11.3.1 Moisture Barrier Bag Before Opened
      2. 11.3.2 Moisture Barrier Bag Open
    4. 11.4 Baking Conditions
    5. 11.5 Soldering and Reflow Condition
  12. 12Device and Documentation Support
    1. 12.1 Device Nomenclature
    2. 12.2 Development Tools and Software
    3. 12.3 Firmware Updates
    4. 12.4 Documentation Support
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Mechanical, Land, and Solder Paste Drawings
    2. 13.2 Package Option Addendum
      1. 13.2.1 Packaging Information
    3. 13.3 Tape and Reel Information
      1. 13.3.1 Tape and Reel Specification

10.2.3 Antenna Placement and Routing

The antenna is the element used to convert the guided waves on the PCB traces to the free space electromagnetic radiation. The placement and layout of the antenna are the keys to increased range and data rates. Table 10-2 provides a summary of the recommended antennas to use with the CC3120MOD module.

Table 10-2 Antenna Guidelines
SR NO. GUIDELINES
1 Place the antenna on an edge or corner of the PCB.
2 Ensure that no signals are routed across the antenna elements on all the layers of the PCB.
3 Most antennas, including the chip antenna used on the booster pack, require ground clearance on all the layers of the PCB. Ensure that the ground is cleared on inner layers as well.
4 Ensure that there is provision to place matching components for the antenna. These must be tuned for best return loss when the complete board is assembled. Any plastics or casing must also be mounted while tuning the antenna because this can impact the impedance.
5 Ensure that the antenna impedance is 50 Ω because the device is rated to work only with a 50-Ω system.
6 In case of printed antenna, ensure that the simulation is performed with the solder mask in consideration.
7 Ensure that the antenna has a near omni-directional pattern.
8 The feed point of the antenna is required to be grounded. This is only for the antenna type used on the CC3120MOD BoosterPack. Refer to the specific antenna data sheets for the recommendations.
9 To use the FCC certification of the module, see the CC3120 and CC3220 Radio Certifications wiki page on CC3120 Radio certification

Table 10-3 lists the recommended antennas to use with the CC3120MOD module. Other antennas may be available for use with the CC3120MOD module. See the CC3120 and CC3220 Radio Certifications wiki page.

Table 10-3 Recommended Components
CHOICE PART NUMBER MANUFACTURER NOTES
1 AH316M245001-T Taiyo Yuden Can be placed at the edge of the PCB using the least amount of PCB area.