QOQWF121IEEE 802.11b/g/n Wi-Fi module WF121

Silicon Laboratories Finland Oy

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Application Details

Equipment Class: DTS - Digital Transmission System
Date of Grant: Sep 25, 2012
Application Purpose: Original Equipment
Date of Application: Sep 25, 2012
Equipment Note: IEEE 802.11b/g/n Wi-Fi module WF121
Frequency Range: 2412.00000000 - 2462.00000000
Company: Silicon Laboratories Finland Oy
Country: Finland

Documents & Files

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

WF121 Wi-Fi MODULE DATA SHEET Thursday, 12 July 2012 Version 1.2 Bluegiga Technologies Oy Copyright © 2000-2012 Bluegiga Technologies All rights reserved. Bluegiga Technologies assumes no responsibility for any errors which may appear in this manual. Furthermore, Bluegiga Technologies reserves the right to alter the hardware, software, and/or specifications detailed here at any time without notice and does not make any commitment to update the information contained here. Bluegiga’s products are not authorized for use as critical components in life support devices or systems. The WRAP, Bluegiga Access Server, Access Point and iWRAP are registered trademarks of Bluegiga Technologies. The Bluetooth trademark is owned by the Bluetooth SIG Inc., USA and is licensed to Bluegiga Technologies. All other trademarks listed herein are owned by their respective owners. Bluegiga Technologies Oy VERSION HISTORY Version Comment 1.0 First version 1.1 FCC and IC information added 1.2 WF121-N layout guide Bluegiga Technologies Oy TABLE OF CONTENTS 1 Ordering Information..................................................................................................................................... 7 2 Pin-out and Terminal Descriptions ............................................................................................................... 8 3 Power control .............................................................................................................................................. 10 3.1 Power supply requirements ............................................................................................................... 10 3.2 Reset .................................................................................................................................................. 10 4 Microcontroller ............................................................................................................................................ 11 5 Interfaces .................................................................................................................................................... 12 5.1 General Purpose I/O pins .................................................................................................................. 12 5.2 Serial ports ......................................................................................................................................... 12 5.3 I 2 C/SPI ............................................................................................................................................... 13 5.4 USB On-The-Go ................................................................................................................................ 13 5.5 Ethernet ............................................................................................................................................. 14 5.6 Analog inputs ..................................................................................................................................... 15 5.7 Timers ................................................................................................................................................ 15 5.8 Parallel master port ............................................................................................................................ 15 5.9 Microcontroller programming interface .............................................................................................. 15 5.10 RF Debug Interface ........................................................................................................................... 16 5.11 Bluetooth co-existence ...................................................................................................................... 16 5.12 CPU Clock ......................................................................................................................................... 17 5.13 32.768 kHz External Reference Clock ............................................................................................... 18 6 Example schematic .................................................................................................................................... 19 7 802.11 Radio .............................................................................................................................................. 20 7.1 Wi-Fi Receiver ................................................................................................................................... 20 7.2 Wi-Fi Transmitter ............................................................................................................................... 20 7.3 Antenna switch for Bluetooth coexistence ......................................................................................... 20 8 Firmware ..................................................................................................................................................... 21 9 Host interfaces ............................................................................................................................................ 23 9.1 UART ................................................................................................................................................. 23 9.2 USB .................................................................................................................................................... 23 9.3 SPI ..................................................................................................................................................... 23 10 Electrical characteristics ........................................................................................................................ 24 10.1 Absolute maximum ratings ................................................................................................................ 24 10.2 Re…

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External Photos

Bluegiga Technologies Sinikalliontie 5A, P.O. Box 120 02630 Espoo FINLAND Tel +358 9 435 5060 | Fax +358 9 435 50660 Co ID 0934238-1, VAT registered, domicile: Espoo www.bluegiga.com | [email protected] WF121-A top WF121-A internal Bluegiga Technologies Sinikalliontie 5A, P.O. Box 120 02630 Espoo FINLAND Tel +358 9 435 5060 | Fax +358 9 435 50660 Co ID 0934238-1, VAT registered, domicile: Espoo www.bluegiga.com | [email protected] WF121-E top WF121-E internal Bluegiga Technologies Sinikalliontie 5A, P.O. Box 120 02630 Espoo FINLAND Tel +358 9 435 5060 | Fax +358 9 435 50660 Co ID 0934238-1, VAT registered, domicile: Espoo www.bluegiga.com | [email protected] WF121-N top WF121-N internal Bluegiga Technologies Sinikalliontie 5A, P.O. Box 120 02630 Espoo FINLAND Tel +358 9 435 5060 | Fax +358 9 435 50660 Co ID 0934238-1, VAT registered, domicile: Espoo www.bluegiga.com | [email protected] WF121 bottom, identical for all variants

ID Label/Location Info

Internal Photos

RF Exposure Info

1 (1) SGS Fimko Ltd Särkiniementie 3, PO Box 30 FI-00211 Helsinki, Finland t. +358 9 696 361 f. +358 9 692 5474 www.fi.sgs.com Business ID 0978538-5 Member of the SGS Group (SGS SA) RF EXPOSURE ANALYSIS Product FCC ID IC number WLAN module QOQWF121 5123A-BGTWF121 WF121 is a general use IEEE 802.11 (Wi-Fi) transceiver module meant to provide wireless connectivity for various low complexity microcontroller platforms without capability of running the Wi-Fi stack. WF121 contains a microcontroller running the full Wi-Fi stack and provides customers with connectivity through serial port or USB with simple commands. WF121 can also be used to run simple customer applications on the module internal microcontroller. WF121 supports the IEEE 802.11b/g/n wireless networking standards with a single spatial stream and 20MHz or 22MHz bandwidth, allowing bitrates of up to 72.2Mbps. Module can be operated with batteries or DC power supply. Analysis for FCC The equipment transmits in the 2 412 – 2 462 MHz frequency range and therefore the applicable threshold is calculated as stated in FCC document KDB 447498 by using the formula f 60 (where f is a highest frequency in used) mW37.24 462.2 60 = Output power considerations: Max. E.I.R.P value: 21.17 dBm = 130.91 mW (Value is taken from the test report number: 266892-1. Value contains conducted output power and antenna gain.) RF exposure evaluation: 22 4 ... 4R PRIE R GP S = = E.I.R.P (dB) E.I.P.R (mW) Evaluation distance (cm) S – power density (mW/cm 2 ) 21.17130.91200.026 Analysis for IC According to standard RSS-102, RF exposure analysis is required for devices operating at or above 1.5 GHz if the maximum E.I.R.P. of the device is 5.0 W or more. Therefore RF exposure analysis is not required for this device. Result: Equipment complies with the FCC and IC limits for maximum permissible exposure

Test Report

Reference number: 266892-2 Page 2 of 86 Table of Contents PRODUCT DESCRIPTION 3 Equipment Under Test (EUT) 3 Description of the EUT 3 Ratings and declarations 4 Power Requirements 4 Mechanical Size of the EUT 4 Cable Lengths and Types 4 Peripherals 4 GENERAL REMARKS 5 Disclaimer 5 SUMMARY OF TESTING 6 EUT Test Conditions During Testing 6 TEST RESULTS 7 Conducted Emissions In The Frequency Range 150 kHz - 30 MHz. 7 Transmitter Radiated Emissions 30 – 1000 MHz 11 Transmitter Radiated Emissions 1 000 – 4 000 MHz 21 Transmitter Radiated Emissions 4 000 – 18 000 MHz 30 Transmitter Radiated Emissions 18 000 – 25 000 MHz 39 6dB Bandwidth 57 Power Spectral Density 61 Maximum Peak Conducted Output Power 65 Receiver Radiated Emissions 30 – 25 000 MHz 69 99% Occupied Bandwidth 82 TEST EQUIPMENTS 86 Conducted and radiated emissions 86 Reference number: 266892-2 Page 3 of 86 Product Description PRODUCT DESCRIPTION Equipment Under Test (EUT) Brand: Bluegiga Model: WF121-A WF121-E WF121-N Serial no: - HW version: - SW version: - FCC ID number: QOQWF121 Industry Canada number: 5123A-BGT121 Description of the EUT WF121 is a general use IEEE 802.11 (Wi-Fi) transceiver module meant to provide wireless connectivity for various low complexity microcontroller platforms without capability of running the Wi-Fi stack. WF121 contains a microcontroller running the full Wi-Fi stack and provides customers with connectivity through serial port or USB with simple commands. WF121 can also be used to run simple customer applications on the module internal microcontroller. WF121 supports the IEEE 802.11b/g/n wireless networking standards with a single spatial stream and 20MHz or 22MHz bandwidth, allowing bitrates of up to 72.2Mbps. WF121 provides embedded system designers with easy add-on connectivity without requiring RF design skills or knowledge about the Wi-Fi stack. Differences between the modules are: WF121-A is equipped with integrated chip antenna WF121-E is equipped with U.FL connector for external antenna WF121-N is equipped with a pad on module edge Classification of the device Fixed device Mobile Device (Human body distance > 20cm) Portable Device (Human body distance < 20cm) Modifications Incorporated in the EUT No modifications were applied to the EUT during testing Reference number: 266892-2 Page 4 of 86 Product Description Ratings and declarations Operating Frequency Range (OFR): 2412 – 2462 MHz Channels: 1-11 Channel separation: 5 MHz Channel bandwidth: 20 MHz (b-mode) 22 MHz (g/N-mode) Conducted power: +19.03dBm Transmission technique: (DSSS, FHSS, etc) DSSS/OFDM Modulation: CCK/OFDM Transmission rate: 1-72.2 Mbps Antenna type and gain: external dipole via RF pad, +2dB Antenna gain: WF121-A 0.5 dBi Antenna gain: WF121-E 2.14 dBi Antenna gain: WF121-N 2.14 dBi Power Requirements DC-operated Operating voltage range 2.7 – 3.6VDC Normal input voltage: 3.3 VDC Mechanical Size of the EUT Height: 2.10 mm Width:15.40 mm Depth: 26.20 mm Cable Lengths and Types Cable: Length: Type: DC power cable 1,5 m Unshielded Peripherals Peripheral Manufacturer Model S/N Connection to the EUT Switching power supply Phihong PSC12R-050 P01900765A1 AC/DC power supply Reference number: 266892-2 Page 5 of 86 General remarks GENERAL REMARKS Disclaimer This test report is issued under SGS Fimko general terms of delivery (available on request and accessible at www.fi.sgs.com). Attention is drawn to the limitations of liability, indemnification and jurisdictional issues defined therein. Unless otherwise stated: (a) the results shown in this document refer only to the sample(s) tested and (b) such sample(s) are retained for three months. This document cannot be reproduced except in full, without prior approval of SGS Fimko. Any unauthorized alteration, forgery or falsification of the content or appearance of this report is unlawful and offenders may be prosecuted to the fullest extent of the law Reference number: 266892-2 Page 6 of 86 Summary of Testing SUMMARY OF TESTING FCC Rules Description of Test Result §15.207(a) Conducted Emissions PASS §15.247(a)(2) 6 dB Bandwidth PASS RSS-GEN §4.6.1 99% Bandwidth PASS §15.209(a) §15.247(d) Radiated Emissions PASS §15.247(e) Power Spectral Density PASS EUT Test Conditions During Testing During the tests EUT was set into continuous transmit or receive mode into the channel under test. Normal test modulation and maximum transmit power was used in all tests. Description of Test Modes Since all modules contain exactly the same hardware and the only difference is the antenna connection the tests were performed as follows: WF121-A radiated emission tests only. WF121-E full testing WF121-N radiated emission tests only. Before performing the actual test a preliminary tests were performed in order to find out which data rate will produce the highest emission level. The highest emission level was produced by using b-mode 1Mbps data rate, g-mode 6Mbps data rate and n- mode 7.2Mbps data rate. All tests were performed by using the above mentioned data rates. This report contains test results of tests performed to the all three models by using b-mode and 1Mbps data rate since this mode produced the highest emission levels. Test Facility Testing Location / address: FCC registration number: 90598 SGS Fimko Ltd Särkiniementie 3 FI-00210, HELSINKI FINLAND Testing Location / address: FCC registration number: 178986 Industry Canada registration number: 8708A-2 SGS Fimko Ltd Karakaarenkuja 4 FI-02610, ESPOO FINLAND Reference number: 266892-2 Page 7 of 86 Conducted Emission Test TEST RESULTS Conducted Emissions In The Frequency Range 150 kHz - 30 MHz. Standard: ANSI C63.10 (2009) Tested by: SOT Date: 04.06.2012 Humidity: 34 % Temperature: 22C Barometric pressure 1003.3 mbar Measurement uncertainty  2.3 dB Level of confidence 95 % (k = 2) Test Plan Conducted disturbance voltage will be measured with an artificial main network from 150 kHz to 30 MHz with 4 kHz steps and a resolution bandwidth of 9 kHz. Measurements …

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Test Setup Photos

1 (3) 29.6.2012 Test setup photographs. Wi-Fi module WF121 Bluegiga Technologies Oy Radiated emissions test setup model WF121-A 2 (3) 29.6.2012 Radiated emissions test setup model WF121-E 3 (3) 29.6.2012 Radiated emission test setup model WF121-N

Contact Information

Applicant

Enrico Taddeo(Senior Applications and Certifications Engineer)

[email protected]+358503237669Fax: +358943550660

Test Firm

SGS Fimko OyJanne Nyman

[email protected]+358 9 696 361Fax: +358-9-696-5474

Technical Specifications

#	Rule Parts	Frequency Range	Power Output
1	15C	2.41 GHz - 2.46 GHz	80.00 mW

Modular Type

Single Modular Approval

Confidentiality

Long Term

Grant Notes

Power Output listed is Conducted. Modular Approval. This device is granted for use in Mobile configurations in which the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and not be co-located with any other transmitters except in accordance with FCC multi-transmitter product procedures. Only those antenna(s) tested with the device or similar antenna(s) with equal or lesser gain may be used with this transmitter. End-users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. The Grantee is responsible for providing the documentation required for modular use. The responsibility for the use of this module in all configurations utilized or contemplated, remains with the Grantee.