User's Guide

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Table Of Contents

Rev. 2.0 – Mar 2008 Confidential Release Under Alereon NDA

USER GUIDE

INTRODUCTION

The AL5621 PCB Radio module is a complete compact device radio reference design that enables quick design of UWB enabled products.

The AL5621 combines the Alereon AL5000 chipset along with on board power supplies, an antenna output, and three different system

interfaces.

1.0 REFERENCE DESIGN FEATURES

Optimized Performance with AL5100 (3.1GHz to 10.6GHz) All Worldwide Bands.

Complete Baseband Processor (BBP) and Media Access Controller (MAC)

High Precision Data Path and Data Converters allowing reliable link at extended ranges

Fully Integrated MAC Protocol Engine Supports All Industry Standards WiMedia Protocols

— Certified Wireless USB

— WiMedia Link Layer Protocol

— Bluetooth 3.0 (supported by future SW releases)

Industry Standard Interfaces

— ULPI 1.1 Interface: 8-Bit / 12 Pins for USB 2.0 PHYs

— CF+ 3.0 / Generic Parallel Interface: 8 & 16-Bits

— SDIO 1.1 Interface 1-Bit and 4-Bit Modes

— UART interface for Cable Associate function

Operates from a single (+3.3 V, regulated) supply

Small Form Factor (38.46 x 27.18 mm) (1.5 x 1 in)

3 GPIO lines for LEDs or additional control signals

Figure 1. AL5621 Worldwide Radio Card

AL5621 Rev 2 Worldwide Wireless USB Device Radio Card Evaluation Board User Guide

Summary of content (10 pages)

PAGE 1
USER GUIDE AL5621 Rev 2 Worldwide Wireless USB Device Radio Card Evaluation Board User Guide INTRODUCTION The AL5621 PCB Radio module is a complete compact device radio reference design that enables quick design of UWB enabled products. The AL5621 combines the Alereon AL5000 chipset along with on board power supplies, an antenna output, and three different system interfaces. 1.0 REFERENCE DESIGN FEATURES Q Optimized Performance with AL5100 (3.1GHz to 10.6GHz) All Worldwide Bands.
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AL5621 Rev 2 Worldwide Wireless USB Device Radio Card Evaluation Board User Guide C3 U1 R1 X1 U3 C1 U2 C4 BPF1 J1 User Guide R6 R5 C6 X2 R3 U5 C5 U6 U7 R4 C7 R2 L2 J2 U4 C2 L1 R7 R9 U8 R10 U9 R11 R12 R13 C8 R8 C9 C10 C12 C13 C11 R17 R18 B R14 R16 C14 R15 R19 R20 U10 C15 C16 R23 R21 R24 R22 SHLD1 Figure 2.
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User Guide 2.0 AL5621 Rev 2 Worldwide Wireless USB Device Radio Card Evaluation Board User Guide BLOCK DIAGRAM Host Interface Connectors (+3.3 V) (Control) (ULPI) (SDIO) (CF+) (GPIO) (Reset) Control Signals Application Interface GPIO U.FL AL5300 BBP/MAC AL5100 RF Transceiver BDF Reset Flash Memory 20 MHz Power up Reset 44 MHz +2.4 V +1.2 V +3.3 V Figure 4. AL5621 Block Diagram 3.0 USER I/O INTERFACE HEADERS ULPI / SDIO / CF+ (BASE MOTHERBOARD CONNECTIONS) Rev. 2.
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AL5621 Rev 2 Worldwide Wireless USB Device Radio Card Evaluation Board User Guide 4.0 DESIGN CONSIDERATIONS 4.1 Power User Guide One +3.3 V power supply at max data rate average current of 500 mA with peak at 750 mA. 4.2 Board Reset During power up, an "on board" power monitor holds the board Reset for approximately 150 ms. The card can also be reset at any time by asserting the "Card_Reset#" signal low.
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User Guide AL5621 Rev 2 Worldwide Wireless USB Device Radio Card Evaluation Board User Guide Table 3.
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AL5621 Rev 2 Worldwide Wireless USB Device Radio Card Evaluation Board User Guide 6.0 User Guide SDIO SIGNAL DEFINITIONS The SDIO interface supports both 1-bit and 4-bit Modes of operation and is fully compliant with SDIO Card Specification, Version 1.1. The SDIO interface can be double clocked, up to 50 MHz, providing twice the throughput of standard SDIO.
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User Guide 8.0 AL5621 Rev 2 Worldwide Wireless USB Device Radio Card Evaluation Board User Guide CABLE ASSOCIATION SUPPORT If the end product requires Cable Association support per the Wireless USB security specification, the following circuit must be added to the base motherboard design. J13 U16 USB_UPCONN_SHLD +3.3V C70 L10 C216 C217 AL_GPIO_LEDS VBUS_UP_CONN J14 R78 AL_GPIO_2 VBUS_UP_FLTR R79 C69 C71 USB_FC_DU+ USB_FC_RX USB_FC_DU- D23 R76 UART_RXD USB_FC_TX R77 D22 UART_TXD +3.
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AL5621 Rev 2 Worldwide Wireless USB Device Radio Card Evaluation Board User Guide 9.0 User Guide MECHANICAL MOTHERBOARD DESIGN CONSIDERATIONS The AL5621 schematics and "AL5621 to Motherboard" connector data sheets can be found in the AL5621-RDK (Reference Design Kit). The following drawing shows the mechanical requirements for the placement of the two AL5621 interface connectors that are required for Electro-Mechanical connection between the product's base motherboard and the AL5621 Radio module.
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User Guide AL5621 Rev 2 Worldwide Wireless USB Device Radio Card Evaluation Board User Guide REVISION HISTORY Date Version Description 01/03/2008 1.0 Initial Release Version 03/03/2008 2.0 Document updated to reflect Rev 2 board revision. Rev. 2.
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Alereon, Inc. 7600 North Capital of Texas Highway Building C, Suite 200 Austin, TX 78731 Telephone: (512) 345-4200 Fax: (512) 345-4201 info@alereon.com The contents of this document are provided in connection with Alereon, Inc. products. Alereon makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice.