SWRS170I August   2014  – October 2017 WL1807MOD , WL1837MOD


  1. 1Device Overview
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
    4. 1.4 Functional Block Diagram
  2. 2Revision History
  3. 3Device Comparison
    1. 3.1 Related Products
  4. 4Terminal Configuration and Functions
    1. 4.1 Pin Attributes
  5. 5Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  External Digital Slow Clock Requirements
    5. 5.5  Thermal Resistance Characteristics for MOC 100-Pin Package
    6. 5.6  WLAN Performance: 2.4-GHz Receiver Characteristics
    7. 5.7  WLAN Performance: 2.4-GHz Transmitter Power
    8. 5.8  WLAN Performance: 5-GHz Receiver Characteristics
    9. 5.9  WLAN Performance: 5-GHz Transmitter Power
    10. 5.10 WLAN Performance: Currents
    11. 5.11 Bluetooth Performance: BR, EDR Receiver Characteristics—In-Band Signals
    12. 5.12 Bluetooth Performance: Transmitter, BR
    13. 5.13 Bluetooth Performance: Transmitter, EDR
    14. 5.14 Bluetooth Performance: Modulation, BR
    15. 5.15 Bluetooth Performance: Modulation, EDR
    16. 5.16 Bluetooth low energy Performance: Receiver Characteristics - In-Band Signals
    17. 5.17 Bluetooth low energy Performance: Transmitter Characteristics
    18. 5.18 Bluetooth low energy Performance: Modulation Characteristics
    19. 5.19 Bluetooth BR and EDR Dynamic Currents
    20. 5.20 Bluetooth low energy Currents
    21. 5.21 Timing and Switching Characteristics
      1. 5.21.1 Power Management
        1. Block Diagram - Internal DC-DCs
      2. 5.21.2 Power-Up and Shut-Down States
      3. 5.21.3 Chip Top-level Power-Up Sequence
      4. 5.21.4 WLAN Power-Up Sequence
      5. 5.21.5 Bluetooth-Bluetooth low energy Power-Up Sequence
      6. 5.21.6 WLAN SDIO Transport Layer
        1. SDIO Timing Specifications
        2. SDIO Switching Characteristics - High Rate
      7. 5.21.7 HCI UART Shared-Transport Layers for All Functional Blocks (Except WLAN)
        1. UART 4-Wire Interface - H4
      8. 5.21.8 Bluetooth Codec-PCM (Audio) Timing Specifications
  6. 6Detailed Description
    1. 6.1 WLAN Features
    2. 6.2 Bluetooth Features
    3. 6.3 Bluetooth low energy Features
    4. 6.4 Device Certification
      1. 6.4.1 FCC Certification and Statement
      2. 6.4.2 Innovation, Science, and Economic Development Canada (ISED)
      3. 6.4.3 ETSI/CE
      4. 6.4.4 MIC Certification
    5. 6.5 Module Markings
    6. 6.6 Test Grades
    7. 6.7 End Product Labeling
    8. 6.8 Manual Information to the End User
  7. 7Applications, Implementation, and Layout
    1. 7.1 Application Information
      1. 7.1.1 Typical Application - WL1837MOD Reference Design
      2. 7.1.2 Design Recommendations
      3. 7.1.3 RF Trace and Antenna Layout Recommendations
      4. 7.1.4 Module Layout Recommendations
      5. 7.1.5 Thermal Board Recommendations
      6. 7.1.6 Baking and SMT Recommendations
        1. Baking Recommendations
        2. SMT Recommendations
  8. 8Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Third-Party Products Disclaimer
      2. 8.1.2 Development Support
        1. Tools and Software
      3. 8.1.3 Device Support Nomenclature
    2. 8.2 Related Links
    3. 8.3 Community Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  9. 9Mechanical, Packaging, and Orderable Information
    1. 9.1 TI Module Mechanical Outline
    2. 9.2 Tape and Reel Information
      1. 9.2.1 Tape and Reel Specification
      2. 9.2.2 Packing Specification
        1. Reel Box
        2. Shipping Box
    3. 9.3 Packaging Information

Refer to the PDF data sheet for device specific package drawings

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

Detailed Description

The WiLink 8 module is a self-contained connectivity solution based on WiLink 8 connectivity. As the eighth-generation connectivity combo chip from TI, the WiLink 8 module is based on proven technology.

Figure 6-1 shows a high-level view of the WL1837MOD variant.

WL1807MOD WL1837MOD module_concept_swrs170.gif Figure 6-1 WL1837MOD High-Level System Diagram

Table 6-1, Table 6-2, and Table 6-3 list performance parameters along with shutdown and sleep currents.

Table 6-1 WLAN Performance Parameters

Maximum TX power, 5 GHz (OFDM6) 6-Mbps OFDM 18 dBm
Maximum TX power, 2.4 GHz (1DSSS) 1-Mbps DSSS 16.5 dBm
Minimum sensitivity, 5 GHz (OFDM6) 6-Mbps OFDM –92.5 dBm
Minimum sensitivity, 2.4GHz (1DSSS) 1-Mbps DSSS –95 dBm
Sleep current Leakage, firmware retained 160 µA
Connected IDLE No traffic IDLE connect 750 µA
RX search 2.4-GHz SISO 20 58 mA
RX current (SISO20) MCS7, 2.4 GHz 69 mA
RX current (SISO20) MCS7, 5 GHz 77 mA
TX current (SISO20) MCS7, 2.4 GHz 238 mA
TX current (SISO20) MCS7, 5 GHz 324 mA
Maximum peak current consumption during calibration(1) 850 mA
Peak current VBAT can hit 850 mA during device calibration.
  • At wakeup, the WiLink 8 module performs the entire calibration sequence at the center of the 2.4-GHz band.
  • Once a link is established, calibration is performed periodically (every 5 minutes) on the specific channel tuned.
  • The maximum VBAT value is based on peak calibration consumption with a 30% margin.
System design power scheme must comply with both peak and average TX bursts.

Table 6-2 Bluetooth Performance Parameters

Maximum TX power GFSK 11.7 dBm
Minimum sensitivity GFSK –92.2 dBm
Sniff 1 attempt, 1.28 s (+4 dBm) 178 µA
Page or inquiry 1.28-s interrupt, 11.25-ms scan window (+4 dBm) 253 µA
A2DP MP3 high quality 192 kbps (+4 dBm) 7.5 mA

Table 6-3 Shutdown and Sleep Currents

Shutdown mode
All functions shut down
VBAT 10 µA
WLAN sleep mode VBAT 160 µA
VIO 60
Bluetooth sleep mode VBAT 110 µA
VIO 60

WLAN Features

The device supports the following WLAN features:

  • Integrated 2.4-GHz power amplifiers (PAs) for a complete WLAN solution
  • Baseband processor: IEEE Std 802.11a, 802.11b/g, and IEEE Std 802.11n data rates with 20- or
    40-MHz SISO and 20-MHz MIMO
  • Fully calibrated system (production calibration not required)
  • Medium access controller (MAC)
    • Embedded ARM® central processing unit (CPU)
    • Hardware-based encryption-decryption using 64-, 128-, and 256-bit WEP, TKIP, or AES keys
    • Requirements for Wi-Fi-protected access (WPA and WPA2.0) and IEEE Std 802.11i (includes hardware-accelerated Advanced Encryption Standard [AES])
  • New advanced coexistence scheme with Bluetooth and Bluetooth low energy wireless technology
  • 2.4- and 5-GHz radio
    • Internal LNA and PA
    • IEEE Std 802.11a, 802.11b, 802.11g, and 802.11n
  • 4-bit SDIO host interface, including high speed (HS) and V3 modes

Bluetooth Features

The device supports the following Bluetooth features:

  • Bluetooth 4.2 secure connection as well as CSA2
  • Concurrent operation and built-in coexisting and prioritization handling of Bluetooth and Bluetooth low energy wireless technology, audio processing, and WLAN
  • Dedicated audio processor supporting on-chip SBC encoding + A2DP
    • Assisted A2DP (A3DP): SBC encoding implemented internally
    • Assisted WB-speech (AWBS): modified SBC codec implemented internally

Bluetooth low energy Features

The device supports the following Bluetooth low energy features:

  • Bluetooth 4.2 low energy dual-mode standard
  • All roles and role combinations, mandatory as well as optional
  • Up to 10 low energy connections
  • Independent low energy buffering allowing many multiple connections with no affect on BR-EDR performance

Device Certification

The WL18MODGI modules from TI (test grades 07 and 37) are certified for FCC, IC, ETSI/CE, and Japan MIC. Moreover, the module is also Wi-Fi certified and has the ability to request a certificate transfer for Wi-Fi alliance members. TI customers that build products based on the WL18MODGI device from TI can save on testing costs and time per product family. Table 6-4 shows the certification list for the WL18MODGI module.

Table 6-4 Device Certification

Regulatory Body Specification ID (If Applicable)
FCC (USA) Part 15C + MPE FCC RF exposure Z64-WL18DBMOD
ISED (Canada) RSS-102 (MPE) and RSS-247 (Wi-Fi, Bluetooth) 451I-WL18DBMOD
ETSI/CE (Europe) EN300328 v2.1.1 (2.4-GHz Wi-Fi, Bluetooth)
EN301893 v2.1.1 (5-GHz Wi-Fi)
EN62311:2008 (MPE)
EN301489-1 v2.1.1 (general EMC)
EN301489-17 v3.1.1 (EMC)
MIC (Japan) Article 49-20 of ORRE 201-140447

FCC Certification and Statement

The WL18MODGI modules from TI are certified for the FCC as a single-modular transmitter. The modules are FCC-certified radio modules that carries a modular grant. Users are cautioned that changes or modifications not expressively approved by the party responsible for compliance could void the authority of the user to operate the equipment.

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:

  • This device may not cause harmful interference.
  • This device must accept any interference received, including interference that may cause undesired operation of the device.


FCC RF Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure limits. This transmitter must not be colocated or operating with any other antenna or transmitter.

Innovation, Science, and Economic Development Canada (ISED)

The WL18MODGI modules from TI are certified for IC as a single-modular transmitter. The WL18MODGI modules from TI meet IC modular approval and labeling requirements. The IC follows the same testing and rules as the FCC regarding certified modules in authorized equipment. This device complies with Industry Canada licence-exempt RSS standards.

Operation is subject to the following two conditions:

  • This device may not cause interference.
  • This device must accept any interference, including interference that may cause undesired operation of the device.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence.

L'exploitation est autorisée aux deux conditions suivantes:

  • L'appareil ne doit pas produire de brouillage.
  • L'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.


IC RF Radiation Exposure Statement:

To comply with IC RF exposure requirements, this device and its antenna must not be colocated or operating in conjunction with any other antenna or transmitter.

Pour se conformer aux exigences de conformité RF canadienne l'exposition, cet appareil et son antenne ne doivent pas étre co-localisés ou fonctionnant en conjonction avec une autre antenne or transmitter.


The WL18MODGB modules conform to the EU Radio Equipment Directive. For further detains, see the full text of the EU Declaration of Conformity for the WL18MODGI (test grade 07) and WL18MODGI (test grade 37) devices.

MIC Certification

The WL18MODGI modules from TI are MIC certified against article 49-20 and the relevant articles of the Ordinance Regulating Radio Equipment. Operation is subject to the following condition:

  • The host system does not contain a wireless wide area network (WWAN) device.

Module Markings

Figure 6-2 shows the markings for the TI WiLink 8 module.

WL1807MOD WL1837MOD marking_requirements_swrs170.gif Figure 6-2 WiLink 8 Module Markings

Table 6-5 describes the WiLink 8 module markings.

Table 6-5 Description of WiLink™ 8 Module Markings

WL18 MODGI Model
&7 Test grade (for more information, see Section 6.6)
Z64-WL18DBMOD FCC ID: single modular FCC grant ID
451I-WL18DBMOD IC: single modular IC grant ID
201-140447 R: single modular TELEC grant ID
LTC (lot trace code): XXXXXXX LTC: Reserved for TI Use
WL1807MOD WL1837MOD telec_logo_swrs152.gif TELEC compliance mark
CE CE compliance mark

Test Grades

To minimize delivery time, TI may ship the device ordered or an equivalent device currently available that contains at least the functions of the part ordered. From all aspects, this device will behave exactly the same as the part ordered. For example, if a customer orders device WL1807MOD, the part shipped can be marked with a test grade of 37, 07 (see Table 6-6).

Table 6-6 Test Grade Markings for Model WL18MODGI

07 Tested
37 Tested Tested

End Product Labeling

These modules are designed to comply with the FCC single modular FCC grant, FCC ID: Z64-WL18DBMOD. The host system using this module must display a visible label indicating the following text:

Contains FCC ID: Z64-WL18DBMOD

These modules are designed to comply with the IC single modular FCC grant, IC: 451I-WL18DBMOD. The host system using this module must display a visible label indicating the following text:

Contains IC: 451I-WL18DBMOD

This module is designed to comply with the JP statement, 201-140447. The host system using this module must display a visible label indicating the following text:

Contains transmitter module with certificate number: 201-140447

Manual Information to the End User

The OEM integrator must be aware of not providing information to the end user regarding how to install or remove this RF module in the user’s manual of the end product which integrates this module. The end user's manual must include all required regulatory information and warnings as shown in this manual.