Digi 90000797-A User Manual

Digi Connect™ Wi-Wave

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Hardware Reference

Part number/version: 90000797_A Release date: March 2008 www.digiembedded.com

Digi, Digi International, the Digi logo, a Digi International Company, Jump Start Kit, ConnectCore, NET+, NET+OS and NET+Works are trademarks or registered trademarks of Digi International, Inc. in the United States and other countries worldwide. All other trademarks are the property of their respective owners.

Information in this document is subject to change without notice and does not represent a committment on the part of Digi International.

Digi provides this document “as is,” without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of fitness or merchantability for a particular purpose. Digi may make improvements and/or changes in this manual or in the product(s) and/or the program(s) described in this manual at any time.

This product could include technical inaccuracies or typographical errors. Changes are made periodically to the information herein; these changes may be incorporated in new editions of the publication.

Digi International, Inc. 11001 Bren Road East Minnetonka, MN 55343 U.S.A. United States: +1 877 912-3444 Other locations: +1 952 912-3444

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Contents

Chapter 1:About the Module..................................................................9

Features.......................................................................................... 9

What’s on the module? ...................................................................... 10

Digi Connect Wi-Wave module edge connector ................................... 10

Digi Connect Wi-Wave module edge connector: Pinout ......................... 11

U.FL connectors........................................................................ 11

USB peripheral controller ................................................................... 12

802.11b/g modes and channels ............................................................ 12

Channel allocations ................................................................... 12

Receiver Sensitivity and Transmit Output Power................................. 13

Voltage regulators............................................................................ 13

Voltage monitor — Reset generator ....................................................... 13

LEDS ............................................................................................ 13

Power........................................................................................... 14

DISABLE signal.......................................................................... 14

Chapter 2: About the Development Board ...........................................15

What’s on the development board ........................................................ 15

Features................................................................................. 15

The development board .............................................................. 16

Unpopulated components ............................................................ 16

Digi Connect Wi-Wave module connector, J52 .......................................... 17

LEDs ............................................................................................ 19

LED DS1 ................................................................................. 19

LED DS2 ................................................................................. 19

Debug (signal) breakout header LEDs .............................................. 19

Switches and reset functionality ........................................................... 20

Voltage monitor........................................................................ 20

Alternative methods to trigger RESET# ............................................ 20

Power supply .................................................................................. 21

Input power jack, J3 .................................................................. 21

Input power supply .................................................................... 21

JTAG Breakout Header, P20 ................................................................ 22

JTAG breakout header signal map .................................................. 22

USB peripheral interface, J4................................................................ 23

USB peripheral jack, J4............................................................... 23

Debug breakout header, P21 ............................................................... 24

Debug breakout header signal map ................................................. 24

W_DISABLE# signal..................................................................... 24

U.FL and RP-SMA connectors ............................................................... 25

U.FL connectors........................................................................ 25

U.FL cables ............................................................................. 25

RP-SMA connectors .................................................................... 26

For more information ................................................................. 26

Chapter 3: Using the Antenna ............................................................ 27

Necessary Conditions for Integration ............................................... 27

Connect Wi-Wave antenna configurations ......................................... 28

General information.......................................................................... 29

Antenna switch......................................................................... 29

Antenna specifications: 2 dBi Dipole ...................................................... 29

Attributes ............................................................................... 29

Dimensions.............................................................................. 29

Antenna strength (radiation pattern) diagram .................................... 31

Antenna specifications: 5.5 dBi Dipole.................................................... 32

Attributes ............................................................................... 32

Dimensions.............................................................................. 32

Radiation pattern: H-Plane (2.0 and 5.0 GHz) .................................... 33

Radiation pattern: E-plane (2.0 and 5.0 GHz) .................................... 34

End User Manual: RF Exposure Statements 34

Appendix A:Specifications .................................................................. 35

Environmental specifications ............................................................... 35

Mechanical dimensions ...................................................................... 35

Power requirements.......................................................................... 36

RF exposure statement ...................................................................... 36

Safety statements ............................................................................ 36

Module and development board dimensions ............................................. 37

Module dimensions .................................................................... 37

Development board dimensions ..................................................... 38

Appendix B: Certifications .................................................................. 39

FCC Part 15 Class B........................................................................... 39

6 Connect Wi-Wave Hardware Reference, Rev. A, 2/2008

Using this Guide

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This guide provides information about the Digi Connect Wi-Wave embedded core module.

Conventions used in this guide

This table describes the typographic conventions used in this guide:

This convention Is used for

italic type Emphasis, new terms, variables, and document titles.

monospaced type

Digi information

Chapter 1:About the Module

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The Digi Connect Wi-Wave module is an 802.11b/g WLAN communications module

for use in embedded applications. The module is a single circuit card packaged in a PCI Express Mini Card form factor, and supports all the RF, analog, and digital circuitry necessary to implement WLAN functionality. Using Digi’s baseband processor technology, this module is the ideal choice for embedded applications requiring long-term product availability in conjunction with reliability and easy design integration.

The primary interface to the module is through a standards-compliant PCI Express Mini Card edge connector, using a USB 2.0 full speed/high speed link for communication with the host system.

Features

Note:

The Digi Connect Wi-Wave module also provides a dual diversity antenna option through two on-board U.FL connectors, which allow for cabling to remote 2.4 GHz antennas.

 Ultra-compact and standards-based form factor

 Easy design integration through USB 2.0 full speed/high speed interface

 Dual diversity antenna option through two on-module U.FL antenna connectors

 Digi 802.11b/g baseband processor technology for long-term product

 -30°C to +60°C operating temperature for harsh environments

 RoHS compliant design

The Digi Connect Wi-Wave edge connector pinout is compliant with the PCI Express Mini Card Electromechanical Specification, Revision 1.1 (March 28,

2005) with this exception: the Digi Connect Wi-Wave has a 4-wire JTAG programming interface mapped to pins 45, 47, 49, and 51.

availability

What’s on the module?

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U.FL connectors

P1P2

Edge connector, P3

What’s on the module?

Digi Connect WiWave mod ule edge connector

10 Connect Wi-Wave Hardware Reference, Rev. A, 2/2008

The Digi Connect Wi-Wave module edge connector is a 52-pin connector whose pinout follows the standard PCI Express Mini Card edge connector pinout as stated in the PCI Express Mini Card Electromechanical Specification, Revision 1.1, with this exception: JTAG signals are mapped onto pins 45, 47, 49, and 51. These signals are reserved and not intended for user applications.

What’s on the module?

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Digi Connect WiWave module edge connector: Pinout

The module edge connector is configured as shown (signal direction w.r.t Wi-Wave):

Pin Type WLAN Mini Card

signal

1 n/a No connect 2 In Vcc_3.3

3 n/a No connect 4 In GND

5 n/a No connect 6 n/a No connect

7 n/a No connect 8 n/a No connect

9 In GND 10 n/a No connect

11 n/a No connect 12 n/a No connect

13 n/a No connect 14 n/a No connect

15 In GND 16 n/a No connect

Key Key

17 n/a No connect 18 In GND

19 n/a No connect 20 In W_DISABLE#

21 In GND 22 In RESET (PERST#)

23 n/a No connect 24 n/a No connect

25 n/a No connect 26 In GND

Pin Type WLAN Mini Card

signal

27 In GND 28 n/a No connect

29 In GND 30 n/a No connect

31 n/a No connect 32 n/a No connect

33 n/a No connect 34 In GND

35 In GND 36 I/O USB_D-

37 n/a No connect 38 I/O USB_D+

39 n/a No connect 40 In GND

41 n/a No connect 42 Out LED_WWAN#

43 n/a No connect 44 Out LED_WLAN#

45 Rsvd (In) JTAG_TCK 46 Out LED_WPAN#

47 Rsvd (In) JTAG_TMS 48 n/a No connect

49 Rsvd (Out) JTAG_TDO 50 In GND

51 Rsvd (In) JTAG_TDI 52 In Vcc_3.3

U.FL connectors The module uses two U.FL antenna connectors (P1 and P2) to allow for cabling to

embedded antennas or external antenna connectors. For more information, see Chapter 3, “Using the Antenna.”

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USB peripheral controller

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USB peripheral controller

The module uses a peripheral USB controller to interface to either a full speed or high speed USB 2.0 link. The link first tries to communicate to the host system board at the high speed USB rate (480 Mbps). If not successful, the link reverts to the full speed USB rate (12 Mbps). This link is used for all communication between the module and the host system board.

Note:

The Digi Connect Wi-Wave module does not support low-speed USB connections.

802.11b/g modes and channels

The Digi Connect Wi-Wave transmits and receives data at up to 11 Mbps when operating in 802.11b mode and up to 54 Mbps when operating in 802.11g mode. It supports these 802.11b/g channels:

 Channels 1 through 11 for North America (2.401 GHz–2.473 GHz)

 Channels 1 through 13 for Europe (2.401 GHz–2.483 GHz)

 Channels 1 through 14 for Asia (2.401 GHz–2.495 GHz)

Channel allocations

Channel Center frequency

(MHz)

1 2412 2401 - 2423

2 2417 2406 - 2428

Frequency spread (MHz - MHz)

3 2422 2411 - 2433

4 2427 2416 - 2438

5 2432 2421 - 2443

6 2437 2426 - 2448

7 2442 2431 - 2453

8 2447 2436 - 2458

9 2452 2441 - 2463

10 2457 2446 - 2468

11 2462 2451 - 2473

12 2467 2456 - 2478

13 2472 2461 - 2483

14 2484 2473 - 2495

12 Connect Wi-Wave Hardware Reference, Rev. A, 2/2008

Voltage regulators

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Receiver Sensitivity and Transmit O ut p u t Power

-71 dBm @ 54 Mbps

-81 dBm @ 11 Mbps

-88 dBm @ 6 Mbps

-93 dBm @ 1 Mbps

13.8 dBm OFDM

17 dBm PSK/CCK

Voltage regulators

The module takes in 3.3V±9% (3.00V to 3.60V) as its main input power. This power is filtered and used as a 3.3V supply to portions of the digital logic. This power also acts as input to dedicated on-board voltage regulators.

Voltage monitor — Reset generator

The module does not provide a voltage monitor or automatic reset signal generator; rather, the module uses a reset signal generated by the host system board.

LEDS

The module does not have any on-board LEDs, but it drives the LED_WLAN# signal (pin 44) to indicate WLAN association and transmit/receive activity. This table shows the different LED states:

LED state Indication

Off Not powered on

On Associated and authenticated

Slow blink Not associated or authenticated

Intermittent blink Transmit/receive activity

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Power

The module requires only +3.3 VDC, 750 mA max. This power must be a wellregulated +3.3V supply due to limited supply filtering in the module. The digital inputs and outputs are 3.3V CMOS compatible. See “Power requirements” on page 36 for specifications.

DISABLE signal The module supports the active low

Express Mini Card Electromechanical Specification. This signal not only disables the power supplies to the radio portion of the module, it also powers down additional portions of the module to reduce power consumption to a minimum.

W_DISABLE# signal (pin 20) as specified in the PCI

14 Connect Wi-Wave Hardware Reference, Rev. A, 2/2008

Chapter 2:About the

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Development Board

The development board is designed for product evaluation and development

purposes. In addition to the Digi Connect Wi-Wave connector, the development board provides several breakout connectors and interfaces.

What’s on the development board

Features  Digi Connect Wi-Wave connector

 Pushbutton reset switch and under voltage reset logic

 External USB Type B connector USB peripheral interface

 Additional signal headers for user access

 Two U.FL RP-SMA antenna connectors

 -30°C to +75°C ambient operating temperature

 RoHS compliant design

The development board

ABOUT THE DEVELOPMENT BOARD

What’s on the development board

Unpopulated components

There are components on the development board that are currently not populated. These components allow the development board to be used in other applications.

16 Connect Wi-Wave Hardware Reference, Rev A 2/2008

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