Alereon AL5721 Worldwide Wireless USB Device-Side Radio Card User Manual AL5721 User Guide R2

Alereon, Inc Worldwide Wireless USB Device-Side Radio Card AL5721 User Guide R2

Final version of UG

UG-AL5721_1.0 P.1/7 INTRODUCTION The AL5721 PCB Radio module is a complete compact device radio reference design that enables quick design of UWB enabled products. The AL5721 combines the Alereon AL5000 chipset along with on board power supplies, an antenna output, a USB function controller and a USB 2.0 system interface. 1.0 REFERENCE DESIGN FEATURES • Optimized Performance with AL5100 (3.1GHz to 8.976GHz) WiMedia BG#1, 3, 6 • 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 - USB 2.0 – Data - USB 2.0 – WiMedia Cable Association • Operates from a single (+3.3 V, regulated) supply • Small Form Factor (Minicard form factor) • 3 GPIO lines for LED Indicators or additional system control signals 2.0 Usage and Documentation The AL5721 is a complete, self-contained UWB radio module requiring only +3.3V regulated power from the host system and providing USB 2.0 interfaces to the host system for data and the WiMedia association function. The AL5712 is intended to provide a simple path for a wired USB product design to migrate to a UWB enabled wireless USB product design. The AL5721 is a wireless USB certified platform and has received FCC approval as a Modular UWB transmitter under subpart F of the FCC rules with the FCC ID: U9YAL5721. The product implementation can apply these approvals to the product which incorporates the AL5721. This document provides an outline of the purpose and functionality provided by the AL5721, complete information for the product system designer is contained in the Alereon Reference Design Kit (RDK) package consisting of: Schematic diagram, BOM, and PCB fabrication information including a full Gerber data set.
UG-AL5721_1.0 P.2/7 3.0 User I/O Interface AL5721 Connector Function Pin # Pin # Function NC 1 2 3.3V NC 3 4 GND NC 5 6 NC NC 7 8 NC GND 9 10 NC NC 11 12 NC NC 13 14 NC GND 15 16 USB VBUS(**) Host_ Select 17 18 GND NC 19 20 W_Disable# GND 21 22 Association_CLR NC 23 24 NC NC 25 26 GND GND 27 28 Assoc. D+(**) GND 29 30 Assoc. D-(**) NC 31 32 Assoc. VBUS(**) NC 33 34 GND GND 35 36 USB D- C2D 37 38 USB D+ C2CLK 39 40 GND AL_GPIO_2 41 42 Dock_LED AL_GPIO_4 43 44 Security_LED# AL_GPIO_5 45 46 Data_LED# AL_GPIO_7 47 48 NC Host_Connect_LED 49 50 GND NC 51 52 3.3V Figure 1, Connector Pins Configuration
UG-AL5721_1.0 P.3/7 AL5721 Pin Function Description Pin # Pin Name I/O Description 1 NC No Connection 2 3.3V +3.3V Regulated power from host system 3 NC No Connection 4 GND Ground connection 5 NC No Connection 6 NC No Connection 7 NC No Connection 8 NC No Connection 9 GND Ground connection 10 NC No Connection 11 NC No Connection 12 NC No Connection 13 NC No Connection 14 NC No Connection 15 GND Ground connection 16 USB VBUS I +5V USB Vbus Signal from host system 17 Host_Select I (1) High = True 3.3V CMOS signal, allows host system to provide control of selection among multiple hosts associated to UWB radio. (2) Test function, holding Host_Select high at +3.3V power application to the AL5721 and then switching it low places the aL5721 into Administrative Mode for control by Alereon manufacturing test utility software 18 GND Ground connection 19 NC No Connection 20 W_Disable# I Low = True 3.3V CMOS signal, assertion of W_Disable# completely disables the radio system. 21 GND Ground connection 22 Association_CLR I High = True 3.3V CMOS signal, assertion of Association_CLR clears all stored host associations 23 NC No Connection 24 NC No Connection 25 NC No Connection 26 GND Ground connection 27 GND Ground connection 28 Assoc. D+ I/O USB D+ of Association signal 29 GND Ground connection 30 Assoc. D- I/O USB D- of Association signal 31 NC No Connection 32 Assoc. VBUS I +5V USB Vbus Signal from association connector 33 NC No Connection 34 GND Ground connection 35 GND Ground connection
UG-AL5721_1.0 P.4/7 36 USB D- I/O USB D- data signal from host system 37 C2D I/O Test signal for 8051CF326 USB controller 38 USB D+ I/O USB D+ data signal from host system 39 C2CLK I/O Test signal for 8051CF326 USB controller 40 GND Ground connection 41 AL_GPIO_2 I/O MAC GPIO signal, functionality may be determined by customer definition 42 Dock_LED O LED drive pin, functionality per table 2 43 AL_GPIO_4 I/O MAC GPIO signal, functionality may be determined by customer definition 44 Security_LED# O LED drive pin, functionality per table 2 45 AL_GPIO_5 I/O MAC GPIO signal, functionality may be determined by customer definition 46 Data_LED# O LED drive pin, functionality per table 2 47 AL_GPIO_7 I/O MAC GPIO signal, functionality may be determined by customer definition 48 NC No Connection 49 Host_Connect_LED O LED drive pin, functionality per table 2 50 GND Ground connection 51 NC No Connection 52 3.3V +3.3V Regulated power from host system Table 1. Pin Descriptions 4.0 DESIGN CONSIDERATIONS 4.1 Power One +3.3 V power supply at max data rate average current of 500 mA with peak at 750 mA. Connector pins #2 and 52 (+3.3V) are connected in common, both should connect to the host system power rail. Connector pins #4, 9, 15, 18, 21, 26, 27, 29, 34, 35, 40, and 50 are connected in common, all should connect to the host system ground. 4.2 LED Indicator Functions Name Functional Description Dock LED Steady flashing when dock power is applied and radio is beaconing but not connected to a host. LED is solid when a wireless connection is made to a Host PC. Security LED Normally off, Flashes during cable association process, Goes solid when a successful cable association is made. During wireless operation, this LED is off when there is not wireless connection to a host, when successful Secure wireless connection is made to a pre-associated host, the LED goes solid. Data LED Flashes when data is being passed wireless in either direction. Host Connect LED Normally off. The LED goes solid when a wireless connection is made with the host. This "Host Connect" LED indicates that the dock is successfully connected to the host. Table 2. LED Indicator Functionality
UG-AL5721_1.0 P.5/7 4.3 UWB Antenna The AL5721 has received FCC approval when employed with either of two antennas. These two alternatives are provided for the system integrator to chose one that best suits the particular installation. The approved antennas are: • ACON (Taiwan) model number ADM6P-700047 • Alereon model number AL500001 These are the only antennas approved by the FCC for use with the Alereon AL5721, any substitution of any other antenna automatically invalidates the FCC approval. 5.0 Regulatory Information The AL5721 is approved under subpart F of the FCC rules as a Modular UWB Transmitter. The product into which the AL5721 is incorporated must bear a label per the FCC requirements which shows the FCC ID assigned to the AL5721 as follows. FCC ID: U9YAL5721 The following information must be conveyed in the information supplied to the End User of the product into which the AL5721 is incorporated. The compliance statement exactly as prescribed by the FCC: 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. This device is authorized under 47 CFR 15.519 (the FCC Rules and Regulations). The operation of this device is subject to the following restriction: This UWB device shall transmit only when it is sending information to an associated receiver. This UWB device shall cease transmission within 10 seconds unless it receives an acknowledgement from the associated receiver that its transmission is being received. An acknowledgement of reception must continue to be received by the transmitting device at least every 10 seconds of operation or the UWB device must cease transmitting. The users manual or instruction manual shall caution the user that changes or modifications to the equipment not expressly approved by the party responsible for the grant of equipment authorization issued by the FCC could void the user’s authority to operate the equipment under the grant of equipment authorization, an example: Warning: Changes or modifications to this device not expressly approved by Alereon could void the users authority to operate the device under the FCC Equipment Authorization. This includes changes or substitutions of the antenna which is furnished with the device.
UG-AL5721_1.0 P.6/7 6.0 Mechanical Recommended connector: Molex 67910-0002 PCI Express Mini Card Connector with Molex 48099-4000 PCI Express Mini Card Latch.
UG-AL5721_1.0 P.7/7

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