Document Number: XXXXX Communications Systems Statement of Work: Specifications for a SDIO 802.11 b/g/n b/g/n Wireless LAN and Bluetooth 2.
1 PURPOSE This document describes the hardware design specifications of the Wireless abgn + Bluetooth option board for the Phoenix program. 1.1 System Block Diagram 1.2 Interfaces 1.2.
25 SDA IO 26 BT_RTS 27 BT_IRQ O 28 BT_CTS 29 GND 30 GND 1.2.2 RF Coaxial connector RP-TNC Connector, Right Angle, Jack Bulkhead from DynaHz. MPN: 26-800x-11040. Current MPN is 26-8003-11040. IPN: 351-486-001 1.2.3 Interface to Galileo module Refer to [1] “Galileo abgn System Specifications.doc”, referred as CDC doc# “636425” for the complete description of the interface to Galileo module. Below is an extract of the important signals to communicate to the Galileo module.
75 BT_PCM_VDR I Pull-low 77 SD_CMD I/O 78 SD_D0 I/O 80 WLINK_RX I 83 BT_RTS O 84 N.C. - Previously BT_IRQ 85 BT_PCM_VCK I/O Pull-low 86 BT_PCM_VDX O floating 87 BT_EN I Active high 89 WLAN_IRQ O Active low 1.3 Power supply The option board received a 5V power supply from the MLB. It generates from it a 3.3V/1.2A supply and a 1.8V/0.8A used by the carrier board and the Galileo module. 1.3.1 Regulator 3.
1.3.2 Regulator 1.8V From 3.3V, generate 1.8V power supply used by the Galileo module, the slow clock and the level-shifter. 1.4 Level shifter The level shifter is used to change the 1.8V signals coming from the Galileo module to a 3.3V signals compliant with the MLB signal requirements, and vice-versa.
The signals converted from 3.3V to 1.8V and 1.8V to 3.3V are as followed: • WIFI_PWR • WLAN_IRQ • BT_PWR • BT_RX • BT_TX • BT_RTS • BT_CTS Notes: (1) The CPU on the MLB is configured to work with 1.8V signals. In this case the SDIO signals out of the Galileo module do not need to be modified. (2) Provision is made to convert the CLK_32kHz and all SDIO signals via the level shifter through uncounted resistors. 1.5 Clock 1.5.1 32kHz Slow clock for the Galileo module 1.5.
2 RC12 Overview RC12 is an embedded wireless device platform that uses a 90 PAD Land Grid Array (LGA) form factor to allow for a low cost solution to mount highly integrated chipsets or OEM/ODM MODULES onto Intermec products. Galileo uses solder-down re-flow mounting only to a host MLB – there are no screws, digital or RF connectors. Test jigs are required to operate Galileo outside of a product.
The system is designed to only use the 20 MHz occupied BW capacity. Data rates MCS0 to MCS7 conform to amendment IEEE802.11n-2009. Data transmission from the IEEE transceiver is initiated by the IEEE 802.11 compliant MAC software. The source of data to transmit can either be user supplied data (from the host systems) or network control packets (ACK’s CTS, PSPoll, ProbeRequest etc). The transmitter is only active during the transmission of one of the packets previously mentioned. 2.
3 System Level Requirements The following is a summary list of MODULE baseline requirements that are detailed in subsequent clauses. the current 802.11 bgn implementation and will change to reflect any future updates such as 802.11n. Table 3-1. Summary Summary System Level Requirements Radio Feature Description Single Stream Transceiver with HT Preamble support Data rates 1, 2, 5.5,11, 802.11bgn Physical Layer 6, 9, 12, 18, 24, 36, 48, 54, MCS0-7 2.4 GHz band Conducted b rates RF Power 17.0 dBm +/-1.
