SWRS170L March   2014  – May 2025 WL1807MOD , WL1837MOD

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 Attributes
  8. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  External Digital Slow Clock Requirements
    5. 7.5  Thermal Resistance Characteristics for MOC 100-Pin Package
    6. 7.6  WLAN Performance: 2.4GHz Receiver Characteristics
    7. 7.7  WLAN Performance: 2.4GHz Transmitter Power
    8. 7.8  WLAN Performance: 5GHz Receiver Characteristics
    9. 7.9  WLAN Performance: 5GHz Transmitter Power
    10. 7.10 WLAN Performance: Currents
    11. 7.11 Bluetooth Performance: BR, EDR Receiver Characteristics—In-Band Signals
    12. 7.12 Bluetooth Performance: Transmitter, BR
    13. 7.13 Bluetooth Performance: Transmitter, EDR
    14. 7.14 Bluetooth Performance: Modulation, BR
    15. 7.15 Bluetooth Performance: Modulation, EDR
    16. 7.16 Bluetooth Low Energy Performance: Receiver Characteristics – In-Band Signals
    17. 7.17 Bluetooth Low Energy Performance: Transmitter Characteristics
    18. 7.18 Bluetooth Low Energy Performance: Modulation Characteristics
    19. 7.19 Bluetooth BR and EDR Dynamic Currents
    20. 7.20 Bluetooth Low Energy Currents
    21. 7.21 Timing and Switching Characteristics
      1. 7.21.1 Power Management
        1. 7.21.1.1 Block Diagram – Internal DC-DCs
      2. 7.21.2 Power-Up and SHUTDOWN States
      3. 7.21.3 Chip Top-level Power-Up Sequence
      4. 7.21.4 WLAN Power-Up Sequence
      5. 7.21.5 Bluetooth-Bluetooth Low Energy Power-Up Sequence
      6. 7.21.6 WLAN SDIO Transport Layer
        1. 7.21.6.1 SDIO Timing Specifications
        2. 7.21.6.2 SDIO Switching Characteristics – High Rate
      7. 7.21.7 HCI UART Shared-Transport Layers for All Functional Blocks (Except WLAN)
        1. 7.21.7.1 UART 4-Wire Interface – H4
      8. 7.21.8 Bluetooth Codec-PCM (Audio) Timing Specifications
  9. 8 Detailed Description
    1. 8.1 WLAN Features
    2. 8.2 Bluetooth Features
    3. 8.3 Bluetooth Low Energy Features
    4. 8.4 Device Certification
      1. 8.4.1 FCC Certification and Statement
      2. 8.4.2 Innovation, Science, and Economic Development Canada (ISED)
      3. 8.4.3 ETSI/CE
      4. 8.4.4 MIC Certification
    5. 8.5 Module Markings
    6. 8.6 Test Grades
    7. 8.7 End Product Labeling
    8. 8.8 Manual Information to the End User
  10. 9 Applications, Implementation, and Layout
    1. 9.1 Application Information
      1. 9.1.1 Typical Application – WL1837MOD Reference Design
      2. 9.1.2 Design Recommendations
      3. 9.1.3 RF Trace and Antenna Layout Recommendations
      4. 9.1.4 Module Layout Recommendations
      5. 9.1.5 Thermal Board Recommendations
      6. 9.1.6 Baking and SMT Recommendations
        1. 9.1.6.1 Baking Recommendations
        2. 9.1.6.2 SMT Recommendations
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
      2. 10.1.2 Development Support
        1. 10.1.2.1 Tools and Software
      3. 10.1.3 Device Support Nomenclature
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 TI Module Mechanical Outline
    2. 12.2 Tape and Reel Information
      1. 12.2.1 Tape and Reel Specification
      2. 12.2.2 Packing Specification
        1. 12.2.2.1 Reel Box
        2. 12.2.2.2 Shipping Box
    3. 12.3 Packaging Information
      1. 12.3.1 PACKAGE OPTION ADDENDUM

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • MOC|100
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.21.7.1 UART 4-Wire Interface – H4

The interface includes four signals:

  • TXD
  • RXD
  • CTS
  • RTS

Flow control between the host and the device is byte-wise by hardware.

When the UART RX buffer of the device passes the flow-control threshold, the buffer sets the UART_RTS signal high to stop transmission from the host. When the UART_CTS signal is set high, the device stops transmitting on the interface. If HCI_CTS is set high in the middle of transmitting a byte, the device finishes transmitting the byte and stops the transmission.

Figure 7-10 shows the UART timing.

WL1807MOD WL1837MOD UART Timing DiagramFigure 7-10 UART Timing Diagram

Table 7-5 lists the UART timing characteristics.

Table 7-5 UART Timing Characteristics
PARAMETERCONDITIONMINTYPMAXUNIT
Baud rate37.54364Kbps
Baud rate accuracy per byteReceive-transmit–2.5%1.5%
Baud rate accuracy per bitReceive-transmit–12.5%12.5%
t3CTS low to TX_DATA on0.02.0µs
t4CTS high to TX_DATA offHardware flow control1.0bytes
t6CTS high pulse duration1.0Bit
t1RTS low to RX_DATA on0.02.0µs
t2RTS high to RX_DATA offInterrupt set to 1/4 FIFO16.0bytes

Figure 7-11 shows the UART data frame.

WL1807MOD WL1837MOD UART Data FrameFigure 7-11 UART Data Frame