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Wireless Module

WM825B00

Single-Band (2.4 GHz) Wi-Fi IEEE 802.11 b/g/n

module with integrated antenna

Datasheet

Revision 0.9

February 6, 2017

Summary of content (22 pages)

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Wireless Module WM825B00 Single-Band (2.4 GHz) Wi-Fi IEEE 802.11 b/g/n module with integrated antenna Datasheet Revision 0.
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WM825B00 www.wi2wi.com Disclaimers Wi2Wi, Inc. PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE MANAGING DIRECTOR OF Wi2Wi, Inc.
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WM825B00 www.wi2wi.com Table of Contents 1. Overview ............................................................................................................................................................. 5 1.1 Features ................................................................................................................................ 5 1.2 IEEE 802.11 Standards............................................................................................................... 5 1.3 Packaging .
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WM825B00 www.wi2wi.com List of Figures Figure 1: Block Diagram ............................................................................................................................ 7 Figure 2 : WM825B00 Module Pin Diagram – Top View ......................................................................... 8 Figure 3: SDIO FS Timing ....................................................................................................................... 13 Figure 4: SDIO HS Timing ......................
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WM825B00 www.wi2wi.com 1. Overview WM825B00 is a complete wireless subsystem with industry’s best integration in a small form factor, featuring full 802.11 b/g/n WLAN capabilities with excellent performance. WM825B00 is part of Wi2Wi’s Maximum Performance (MX) series. It includes integrated MAC, baseband, RF front-end, PA, crystal, Tx/Rx switch, filter and OTP memory for calibration data and MAC address storage. This module also has an onboard chip antenna and u.Fl connector.
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WM825B00 www.wi2wi.com          1.3  1.4    1.5                1.6    802.11e quality of service 802.11h transmit power control 802.11i enhanced security 802.11k radio resource measurement 802.11n block acknowledgement extension 802.11r fast hand-off for AP roaming 802.
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WM825B00 www.wi2wi.com 1.7   Peripheral Bus Interfaces Clocked serial unit UART (debug) interface 2. System Description WM825B00 is a complete module, combination of the 88W8801 802.11b/g/n,1 x 1 SISO device and all the components needed to operate the radio. It preserves characteristics from the chipset while providing optimized system level functionality and performance. 2.1 Block Diagram Figure 1 shows a block diagram of WM825B00 module. Figure 1: Block Diagram Copyright © 2016 Wi2Wi, Inc.
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WM825B00 www.wi2wi.com 2.2 Pin Diagram and Description Figure 2 shows the pin assignments for the 32-pin QFN package Figure 2 : WM825B00 Module Pin Diagram – Top View Table 1: Pin Description Pin Number Pin Name Type 8 SD_CLK I 6 HOST_WAKE I Supply Description Clock and Reset Signals SDIO 4-bit Mode: Clock input VIO_SD SDIO 1-bit Mode: Clock input SDIO SPI Mode: Clock input AVDD18 Host-to-SoC Wakeup (input) Copyright © 2016 Wi2Wi, Inc. Email: support@wi2wi.
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WM825B00 www.wi2wi.com Host Interface Selection 5, 7 CON[1], CON[0] I AVDD18 CON[1] 0 0 1 1 CON[0] 0 1 0 1 Mode UART debug Reserved SDIO USB Full Power-Down (active low) 0 = full power-down mode 1 = normal mode 3.3V Connect to power-down pin of host or 3.3V External host required to drive this pin low for shutdown Interface Signals 3.3V USB Serial Differential Data Negative 3.
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WM825B00 www.wi2wi.com 31 GPIO3 I/O VIO *TWSI EEPROM Mode: SER_DAT Serial interface data (input/output) Power 1 , 10, 18, 28, 29 19 20 +3.3V Power 3.3V 3.3V VIO-SD VIO Power Power 2, 21, 22, 23,26, 27, 30 GND Ground GND Ground 33, 34, 35, 36 GND EXPOSED PADS Ground GND Ground VIO_SD Power 3.3V or 1.8V Digital I/O SDIO VIO Power 3.3V or 1.8V Digital I/O SDIO Ground Pins Note: * marked is not available with the current software 2.
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WM825B00 www.wi2wi.com 3. Electrical Characteristics Table 2: Electrical Characteristics Parameter Storage Temperature Supply Voltage +3V_IO Operating Temperature Supply Voltage +3V_IO Transmit Mode current Consumption Receive Mode current consumption Current consumption in IEEE 802.
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WM825B00 www.wi2wi.com Note 1: VCC_IO, I VCC_SD are excluded from current measurement. 4. Voltage Domains Voltage domains and limits of all the signal pins are listed in table 3 and table 4. Table 3: 3.3V Voltage Domain Signal Limits Vih Vil Vihys Voh Vol Min 2 -0.3 300 2.3 - Typical - Max 3.6 1 0.4 Units V V mV V V Table 4: 1.8V Voltage Domain Signal Limits Vih Vil Vihys Voh Vol Min 1.2 -0.3 250 1.22 - Typical - Max 2.1 0.6 0.4 Units V V mV V V Copyright © 2016 Wi2Wi, Inc.
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WM825B00 www.wi2wi.com 5. WLAN External Host Interface For connection to a host processor, supports the SDIO HS 4 bit. 5.1 SDIO Timing Diagrams Figure 3: SDIO FS Timing Figure 4: SDIO HS Timing Note: The SDIO-SPI CS Signal timing is identical to all other SDIO inputs Copyright © 2016 Wi2Wi, Inc. Email: support@wi2wi.
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WM825B00 www.wi2wi.
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WM825B00 www.wi2wi.com 6.3 Deep Sleep This mode puts the complete Wi-Fi section into deep sleep mode, which is the same as the IEEE mode above except there are no periodic wake-ups to receive beacons. Thus it offers lower power consumption than IEEE mode. This mode is entered when the host processor sends the appropriate command. In deep sleep mode, the device is not listening for packets or beacons from the AP, so it cannot maintain an association with it.
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WM825B00 www.wi2wi.com            Transmit power control Long and short preamble generation on a frame-by-frame basis Mobile hotspot IEEE power save mode Deep sleep mode Infrastructure and ad-hoc mode Rate adaptation WPA TKIP security WPA2 Operating System Support Driver available for Linux kernel 2.6.24 to 3.13.0 In addition to the end user driver, Wi2Wi also provides, engineering tools needed for production testing and certification. Figure 5: Stack Diagram Copyright © 2016 Wi2Wi, Inc.
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WM825B00 www.wi2wi.com 8.1 Host Processor The TCP/IP stack, Ethernet Driver, Security Supplicant, and the 802.11 extensions reside on the host processor. The Hardware Interface driver is partitioned between the host and the module. WLAN firmware for Wi-Fi is downloaded through the host interface (SDIO or USB) by the Hardware Interface Driver at power up.
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WM825B00 www.wi2wi.com 10. Manufacturing Notes 10.1 Shield Marking Figure 7: Shield Marking – Top View YY indicates Year WW indicates Work Week  -I indicates Industrial operating temperature range (-40°C to +85°C)  -E indicates Extended operating temperature range (-30°C to +85°C)  -C indicates Commercial operating temperature range (0°C to +70°C)  3 indicates Chip Antenna and u.FL connector 10.2 Storage and Baking Instructions WM825B00 is an MSL3 qualified package.
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WM825B00 www.wi2wi.com 11.
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WM825B00 www.wi2wi.com 13. Certifications WM825B00 complies with the following standards: FCC: 15C IC: RSS-247 CE: EN 300 328 v1.9.1, EN 301 489-1 v1.9.2 EN 301 489-17 v2.2.1, EN 60950-1 FCC Statement: Note: 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.
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WM825B00 www.wi2wi.com conjunction with any other antenna or transmitter. The information in this guide may change without notice. The manufacturer assumes no responsibility for any errors that may appear in this guide. Integrator Guidance:    All certifications apply to the integrated chip antenna only. Customers using any optional external antenna connecting via the onboard u.FL connector or the RF Pad must get their antenna certified themselves.