Sterling LWB5+ USB Dongle

Introduction

Overview

This document describes key hardware aspects of the Sterling-LWB5+ USB Adapter. This document is intended to assist device manufacturers and related parties with the integration of this radio into their host devices. Data in this document is drawn from several sources. For full documentation on the Sterling-LWB5+, visit:

https://www.ezurio.com/lwb5+

General Description

The LWB5+ wireless USB adapter is an integrated, small form factor 1x1 SISO 802.11 a/b/g/n/ac WLAN plus Bluetooth^® 5.2 dual mode USB adaptor that is optimized for low-power mobile devices. The integration of all WLAN and Bluetooth functionality in a single package supports low cost and easy use.

The adaptor is pre-calibrated and contains the complete transmit/receive RF paths including diplexer, switches, ceramic chip antenna, reference crystal oscillator, slow clock oscillator and power management unit (PMU).

The LWB5+ wireless adaptor supports IEEE 802.11ac 1x1 SISO with data rates up to MCS9 (433.3 Mbps). An internal Wi-Fi and Bluetooth coexistence scheme provides optimized connectivity while Wi-Fi and Bluetooth are operating simultaneously. The device’s low power consumption radio architecture and power management unit (PMU) proprietary power save technologies allow for extended battery life.

In addition, its dual 802.11ac and Bluetooth radio includes full digital MAC and baseband engines that handle all 802.11 CCK/OFDM® 2.4/5 GHz and Bluetooth 5.2 (Basic Rate, Enhanced Data Rate, and Bluetooth Low Energy) baseband and protocol processing.

This datasheet is subject to change. Please contact Ezurio for further information.

Features & Benefits

The Sterling-LWB5+ USB Adapter features and benefits are described in the following table.

Specification Summary

Processor / SoC / Chipset

Wi-Fi

Standards	IEEE 802.11a, 802.11b, 802.11e, 802.11g, 802.11h, 802.11i, 802.11k*, 802.11n, 802.11r, 802.11v*, 802.11ac
Interface	USB 2.0
Frequency Range
Spatial Streams	1 (1x1 SISO) [802.11ac/n]
Channel Support	2.4 GHz EU: 13 (3 non-overlapping) FCC/ISED: 11 (3 non-overlapping) MIC: 14 (4 non-overlapping) RCM: 13 (3 non-overlapping) 5 GHz: EU: 24 non-overlapping FCC: 25 non-overlapping ISED: 22 non-overlapping MIC: 19 non-overlapping RCM: 21 non-overlapping
Supported Data Rates	Support 802.11 ac/a/b/g/n 1x1 SISO. 802.11b (DSSS, CCK) 1, 2, 5.5, 11 Mbps 802.11a/g (OFDM) 6, 9, 12, 18, 24, 36, 48, 54 Mbps 802.11n (OFDM, HT20/HT40, MCS0-7) 802.11ac (OFDM, VHT20, MCS0-8; OFDM, VHT40/HT80, MCS0-9)
Modulation Schemes	BPSK, QPSK, CCK, 16-QAM, 64-QAM, and 256-QAM
Network Architecture Type	Infrastructure (client operation), Access Point
Wi-Fi Media	Direct Sequence-Spread Spectrum (DSSS) Complementary Code Keying (CCK) Orthogonal Frequency Divisional Multiplexing (OFDM)
Wi-Fi Multimedia	WMM Wi-Fi Multimedia - PowerSave (WMM-PS with U-APSD) WMM-Sequential Access (WMM-SA with PCF)
Coexistence

Bluetooth

Radio Performance

Interfaces

Power

Mechanical

Software

Environmental

Certifications

Warranty

Functional Descriptions

WLAN Functional Description

The LWB5+ wireless USB adaptor is designed based on the Cypress CYW4373EUBGT 802.11ac/a/b/g/n chipset. It is optimized for high speed, reliability, and low-power embedded applications. It is integrated with dual-band WLAN (2.4/5 GHz) and Bluetooth 5.2. Its functionality includes the following:

• Improved throughput on the link due to frame aggregation, RIFS (reduced inter-frame spacing), and half guard intervals.

• Support for LDPC (Low Density Parity Check) codes.

• Improved 11n performance due to features such as 11n frame aggregation (TX A-MPDU) and low-overhead host-assisted buffering (RX A-MPDU). These techniques can improve performance and efficiency of applications involving large bulk data transfers such as file transfers or high-resolution video streaming.

• IEEE 802.11ac, 1x1 SISO with data rate up to MCS9 (433.3 Mbps).

Additional functionality is listed below.

Bluetooth Functional Description

The LWB5+ wireless USB adaptor includes a fully integrated Bluetooth baseband/radio. Several features and functions are listed below.

Hardware Architecture

Block Diagrams

Mechanical Drawings

LWB5+ USB Adapter dimensions is 47 x 17.5 x 11.7 mm.

Host Interface Specifications

USB LS Driver and Receiver Parameters

USB FS Driver and Receiver Parameters

USB HS Driver and Receiver Parameters

Electrical Characteristics

Absolute Maximum Ratings

The following table summarizes the absolute maximum ratings for the LWB5+ series wireless module. Absolute maximum ratings are those values beyond which damage to the device can occur. Functional operation under these conditions, or at any other condition beyond those indicated in the operational sections of this document, is not recommended.

Recommended Operating Conditions

The following table lists the recommended operating conditions for the LWB5+ series wireless module.

Radio Characteristics

WLAN Radio Receiver Characteristics

The following tables summarize the LWB5+ wireless USB adaptor receiver characteristics.

 WLAN receiver conductive characteristics for 2.4 GHz single chain operation

WLAN receiver conductive characteristics for 5 GHz single chain operation

WLAN Transmitter Characteristics

WLAN transmitter conductive characteristics for 2.4 GHz operation

WLAN current consumption on 2.4 GHz operation@25 degree C

WLAN transmitter conductive characteristics for 5 GHz operation

WLAN current consumption on 5 GHz operation@ 25 degree C

Bluetooth Receiver Characteristics

The following tables describe the basic rate receiver performance and enhanced rate receiver performance at 25°C.

Basic rate receiver performance temperature at 25°C

Enhanced data rate receiver performance

Bluetooth Transmitter Characteristics

The following tables describe the basic rate transmitter performance, basic rate receiver performance, enhanced rate receiver performance, and current consumption conditions at 25°C.

Basic rate transmitter performance temperature at 25°C

BLE RF Specifications

Bluetooth current consumption @ USB VBUS

Integration Guidelines

Antenna Characteristics

Antenna Radiation Patterns

2.4 GHz

5 GHz

Shipping and Labeling

Packaging

450-00137 Single Unit

450-00137B Bulk

Environmental and Reliability

Reliability Tests

Climatic and Dynamic

Reliability Prediction

Regulatory, Qualification & Certifications

Regulatory Approvals

The Sterling LWB5+ holds current certifications in the following countries:

Federal Communication Commission Interference Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

IMPORTANT NOTE:

Radiation Exposure Statement:

The product complies with the US portable RF exposure limit set forth for an uncontrolled environment and are safe for intended operation as described in this manual. The further RF exposure reduction can be achieved if the product can be kept as far as possible from the user body or set the device to lower output power if such function is available.

This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

Industry Canada Statement

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:

(1) This device may not cause interference

(2) This device must accept any interference, including interference that may cause undesired operation of the device

L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes :

(1) L’appareil ne doit pas produire de brouillage;

(2) L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.

Radiation Exposure Statement:

The product complies with the Canada portable RF exposure limit set forth for an uncontrolled environment and are safe for intended operation as described in this manual. The further RF exposure reduction can be achieved if the product can be kept as far as possible from the user body or set the device to lower output power if such function is available.

Déclaration d'exposition aux radiations:
Le produit est conforme aux limites d'exposition pour les appareils portables RF pour les Etats-Unis et le Canada établies pour un environnement non contrôlé. Le produit est sûr pour un fonctionnement tel que décrit dans ce manuel. La réduction aux expositions RF peut être augmentée si l'appareil peut être conservé aussi loin que possible du corps de l'utilisateur ou que le dispositif est réglé sur la puissance de sortie la plus faible si une telle fonction est disponible.

Bluetooth SIG Qualification

The Bluetooth Qualification Process promotes global product interoperability and reinforces the strength of the Bluetooth® brand and ecosystem to the benefit of all Bluetooth SIG members. The Bluetooth Qualification Process helps member companies ensure their products that incorporate Bluetooth technology comply with the Bluetooth Patent & Copyright License Agreement and the Bluetooth Trademark License Agreement (collectively, the Bluetooth License Agreement) and Bluetooth Specifications.

The Bluetooth Qualification Process is defined by the Qualification Program Reference Document (QPRD) v3.

To demonstrate that a product complies with the Bluetooth Specification(s), each member must for each of its products:

• Identify the product, the design included in the product, the Bluetooth Specifications that the design implements, and the features of each implemented specification
• Complete the Bluetooth Qualification Process by submitting the required documentation for the product under a user account belonging to your company

The Bluetooth Qualification Process consists of the phases shown below:

To complete the Qualification Process the company developing a Bluetooth End Product shall be a member of the Bluetooth SIG.  To start the application please use the following link: Apply for Adopter Membership

Scope

This guide is intended to provide guidance on the Bluetooth Qualification Process for End Products that reference multiple existing designs, that have not been modified, (refer to Section 3.2.2.1 of the Qualification Program Reference Document v3).

For a Product that includes a new Design created by combining two or more unmodified designs that have DNs or QDIDs into one of the permitted combinations in Table 3.1 of the QPRDv3, a Member must also provide the following information:

• DNs or QDIDs for Designs included in the new Design
• The desired Core Configuration of the new Design (if applicable, see Table 3.1 below)
• The active TCRL Package version used for checking the applicable Core Configuration (including transport compatibility) and evaluating test requirements

Any included Design must not implement any Layers using withdrawn specification(s).

When creating a new Design using Option 2a, the Inter-Layer Dependency (ILD) between Layers included in the Design will be checked based on the latest TCRL Package version used among the included Designs.

For the purposes of this document, it is assumed that the member is combining unmodified Core-Controller Configuration and Core-Host Configuration designs, to complete a Core-Complete Configuration.

Qualification Steps When Referencing multiple existing designs, (unmodified) – Option 2a in the QPRDv3

For this qualification option, follow these steps:

1. To start a listing, go to: https://qualification.bluetooth.com/
2. Select Start the Bluetooth Qualification Process.

3. Product Details to be entered:

   1. Project Name (this can be the product name or the Bluetooth Design name).
   2. Product Description
   3. Model Number
   4. Product Publication Date (the product publication date may not be later than 90 days after submission)
   5. Product Website (optional)
   6. Internal Visibility (this will define if the product will be visible to other users prior to publication)
   7. If you have multiple End Products to list then you can select ‘Import Multiple Products’, firstly downloading and completing the template, then by ‘Upload Product List’.  This will populate Qualification Workspace with all your products.

4. Specify the Design:

   1. Do you include any existing Design(s) in your Product? Answer Yes, I do.
   2. Enter the multiple DNs or QDIDs used in your, (for Option 2a two or more DNs or QDIDs must be referenced)
   3. Select ‘I’m finished entering DN’s
   4. Once the DNs or QDIDs are selected they will appear on the left-hand side, indicating the layers covered by the design (should show Core-Controller and Core Host Layers covered).
   5. What do you want to do next? Answer, ‘Combine unmodified Designs’.
   6. The Qualification Workspace Tool will indicate that a new Design will be created and what type of Core-Complete configuration is selected.
   7. An active TCRL will be selected for the design.
   8. Perform the Consistency Check, which should result in no inconsistencies
   9. If there are any inconsistencies these will need to be resolved before proceeding
   10. Save and go to Test Plan and Documentation

5. Test Plan and Documentation

   1. As no modifications have been made to the combined designs the tool should report the following message:
      ‘No test plan has been generated for your new Design. Test declarations and test reports do not need to be submitted. You can continue to the next step.’
   2. Save and go to Product Qualification fee

6. Product Qualification Fee:

   1. It’s important to make sure a Prepaid Product Qualification fee is available as it is required at this stage to complete the Qualification Process.
   2. Prepaid Product Qualification Fee’s will appear in the available list so select one for the listing.
   3. If one is not available select ‘Pay Product Qualification Fee’, payment can be done immediately via credit card, or you can pay via Invoice.  Payment via credit will release the number immediately, if paying via invoice the number will not be released until the invoice is paid.
   4. Once you have selected the Prepaid Qualification Fee, select ‘Save and go to Submission’

7. Submission:

   1. Some automatic checks occur to ensure all submission requirements are complete.
   2. To complete the listing any errors must be corrected
   3. Once you have confirmed all design information is correct, tick all of the three check boxes and add your name to the signature page.
   4. Now select ‘Complete the Submission’.
   5. You will be asked a final time to confirm you want to proceed with the submission, select ‘Complete the Submission’.
   6. Qualification Workspace will confirm the submission has been submitted.  The Bluetooth SIG will email confirmation once the submission has been accepted, (normally this takes 1 working day).

8. Download Product and Design Details (SDoC):

   1. You can now download a copy of the confirmed listing from the design listing page and save a copy in your Compliance Folder

For further information, please refer to the following webpage:

https://www.bluetooth.com/develop-with-bluetooth/qualification-listing/

Example Design Combinations

Ezurio Controller Subsystem + BlueZ 5.50 Host Stack (Ezurio Sterling LWB5+ based design)

Qualify More Products

If you develop further products based on the same design in the future, it is possible to add them free of charge.  The new product must not modify the existing design i.e add ICS functionality, otherwise a new design listing will be required.

To add more products to your design, select ‘Manage Submitted Products’ in the Getting Started page, Actions, Qualify More Products.  The tool will take you through the updating process.

Ordering Information

Legacy - Revision History