Fitvision Technology QCA9531 User manual

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WIRELESS LAN MODULE
QCA9531
USER’S MANUAL

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1. Overview
The Qualcomm Atheros QCA9531 is highly integrated and feature-rich IEEE 802.11n 2x2
2.4GHz System-on--a-Chip(SoC) for advances WLAN platforms.
It includes a MIPS 24Kc processor ,one PCI Express 1.1 Root Complex interface, five port IEEE
802.3 Fast Ethernet Switch With MAC/PHY, one USB 2.0 MAC/PHY, and external memory
Interface for serial Flash,DDR1 or DDr2,SDRAM,UART,and GPIOs that can be used for LED
controls or other general purpose interface configurations.
The QCA9531 PCIE root complex interface can be used to connect to an endpoint such as the
Qualcomm Atheros single-chip MAC/BB/radio for dual concurrent WLAN application. The
QCA9531 supports 802.11n operations up to 144 Mbps for 20 MHz Likelihood(ML) decoding, Low-
Density Parity Check(LDPC) and Maximal Ratio Combining(MRC).
The QCA9531 supports booting from NOR flash.
2. Features
24Kc MIPS processor with 64KB I-Cache and 32KB D-Cache, operating at up to 550MHz
External 16-bit DDR1,operating at up to 200 MHz,DDR2 operating at up to 275MHz
External SDRAM interface operating at 166 MHz
SPI NOR Flash memory support
10/100 Ethernet Switch with four IEEE 802.3 Ethernet LAN ports and one WAN post
802.3az Energy Efficient Ethernet compliant
PCI Express 1.1 Root Complex interface
One USB 2.0 controller with built-in MAC/PHY supports Host mode
One low-speed UART(115 Kbps) and multiple GPIO pins for general purpose I/O
Fully integrated RF Front-End including Pas and LNAs
Optional external LNA/PA
25 MHz reference clock input
1.2V switching regulator
Advanced power management with dynamic clock switching for ultra-low power modes
156-pin 12mmx12mm DRQFN package

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Federal Communication Commission Interference Statement
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. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
FCC Caution:
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.
Non-modification Statement:
Changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecouldvoidtheuser'sauthoritytooperatetheequipment.
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be
installed and operated with minimum distance 20cm between the radiator & your body.
Limited Channels fixed for use in the US:
IEEE 802.11b or 802.11g or 802.11n(HT20) operation of this product in the U.S. is firmware-limited to Channel 1 through 11. IEEE
802.11n(HT40) operation of this product in the U.S. is firmware-limited to Channel 3 through 9.

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This device is intended only for OEM integrators under the following conditions:
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1) Theantennamustbeinstalledsuchthat20cmismaintainedbetweentheantennaandusers,and
2) Thetransmittermodulemaynotbeco‐locatedwithanyothertransmitterorantenna.
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Aslongas2conditionsabovearemet,furthertransmittertestwillnotberequired.However,theOEM
integratorisstillresponsiblefortestingtheirend‐productforanyadditionalcompliancerequirements
requiredwiththismoduleinstalled
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IMPORTANTNOTE:Intheeventthattheseconditionscannotbemet(forexamplecertainlaptop
configurationsorco‐locationwithanothertransmitter),thentheFCCauthorizationisnolongerconsidered
validandtheFCCIDcannotbeusedonthefinalproduct.Inthesecircumstances,theOEMintegratorwillbe
responsibleforre‐evaluatingtheendproduct(includingthetransmitter)andobtainingaseparateFCC
authorization.
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EndProductLabeling
Thistransmittermoduleisauthorizedonlyforuseindevicewheretheantennamaybeinstalledsuchthat20
cmmaybemaintainedbetweentheantennaandusers.Thefinalendproductmustbelabeledinavisiblearea
withthefollowing:“ContainsFCCID:YFXQCA9531”.Thegrantee'sFCCIDcanbeusedonlywhenallFCC
compliancerequirementsaremet.
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ManualInformationTotheEndUser
The OEM integrator has to be aware not to provide information to the end user regarding how to install or
remove this RF module in the user’s manual of the end product which integrates this module.
Theendusermanualshallincludeallrequiredregulatoryinformation/warningasshowinthismanual.