Libre LS6-N22S User manual

USER Manual
LS6-N22S-M
SPECIFICATIONS
1.power up for MT7620A with battery 7.4V
2.Connect to the PC with RS232.
3.run the CMD on PC
4.run the MT7620A's QA tools which given by the supplier.
5. The MT7620 router module with two antenna portswhich
pattern is MOMI,the two antenna are the same one.
The antenna manufacturer A:Suzhou point positive electronic
technology co.,ltd
Model No: RC8WFI0063A or Model No:FCIWF10779A
Ant. Gain: Ref Ant. spec
FCC Statement
This device complies with Part 15 of the FCC Rules / Industry
Canada licence-exempt RSS standard(s). 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.
Le présent appareil est conforme aux CNR d'Industrie Canada
applicables aux appareils radio exempts de licence. L'exploitation

est autorisée aux deux conditions suivantes : (1) l'appareil ne doit
pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage
est susceptible d'en compromettre le fonctionnement.
NOTE: 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.
Under Industry Canada regulations, this radio transmitter may only
operate using an antenna of a type and maximum (or lesser) gain
approved for the transmitter by Industry Canada. To reduce
potential radio interference to other users, the antenna type and its
gain should be so chosen that the equivalent isotropically radiated
power (e.i.r.p.) is not more than that necessary for successful
communication.
Conformément à la réglementation d'Industrie Canada, le présent
émetteur radio peut fonctionner avec une antenne d'un type et d'un
gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie
Canada. Dans le but de réduire les risques de brouillage
radioélectrique à l'intention des autres utilisateurs, il faut choisir le
type d'antenne et son gain de sorte que la puissance isotrope
rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité
nécessaire à l'établissement d'une communication satisfaisante.
To satisfy FCC / IC RF exposure requirements, a separation
distance of 20 cm or more should be maintained between the
antenna of this device and persons during device operation.
To ensure compliance, operations at closer than this distance is not
recommended.
Les antennes installées doivent être situées de facon à ce que la

population ne puisse y être exposée à une distance de moin de 20
cm. Installer les antennes de facon à ce que le personnel ne puisse
approcher à 20 cm ou moins de la position centrale de l’ antenne.
La FCC des éltats-unis stipule que cet appareil doit être en tout
temps éloigné d’au moins 20 cm des personnes pendant son
functionnement.
The devices must be installed and used in strict accordance with
the manufacturer's instructions as described in the user
documentation that comes with the product.
Information for the OEM Integrators
This device is intended for OEM integrators only. Please see the full
grant of equipment document for restrictions.
Label Information to the End User by the OEM or Integrators
If the FCC ID of this module is not visible when it is installed inside
another device, then the outside of the device into which the
module is installed must be label with Contains FCC ID: XCO-LS6
and IC: 7756A-LS6”.

LS6-N22S
Libre Wireless Technologies Data Sheet: Network Media Module, Ver. 3.7 Page 2 of 18
Libre Confidential
1. Introduction
Libre LS6-N22S is a complete network media module. It includes an 802.11n MAC and baseband, a
2.4 GHz 2x2 MIMI radio and FEM, a 580MHz MIPS
®
24K™ CPU core, with supporting FLASH and
DRAM memory. The module also includes all the necessary I/O and control interfaces required to
build feature rich networked media products, yet cost effective with very little additional electronic
design.
The embedded high performance CPU can process many advanced applications, such as network
media streaming, rendering, routing, security and special advanced Libre technology features. The
LS6-N22S also includes a selection of interfaces to support a variety of applications, such as I2S audio
interface, a USB port and SD port for accessing external storage, SPI and UART for data and control.
Combined with the extensive LibreSync software, this small form factor and low cost design provide
excellent Wi-Fi and processing performance for the wireless connectivity required in today CE
products.
2. Module Feature Summary
Key Features
 Embedded MIPS24KEc (580 MHz) with 64 KB I-Cache and 32 KB D-Cache
 2T2R 2.4 GHz with 130 Mbps PHY data rate
 Legacy 802.11b/g and HT 802.11n modes
 20 MHz channel bandwidth
 Libre’s advanced multi-zone audio streaming technology
 Reverse Data Grant (RDG)
 Maximal Ratio Combining (MRC)
 Space Time Block Coding (STBC)
 16-bit DDR2 64Mbytes
 Serial Flash 16Mbytes
 SPI, SD-XC
 1x USB 2.0
 An optimized PMU

LS6-N22S
Libre Wireless Technologies Data Sheet: Network Media Module, Ver. 3.7 Page 3 of 18
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 Green AP
 Intelligent Clock Scaling (exclusive)
 DDR2: ODT off, Self-refresh mode
 I2C, I2S, SPI, UART, JTAG, GPIO
 I2S interface supports 16-bit/96kHz (slave mode)
 Hardware NAT with IPv6
 WEP64/128, TKIP, AES, WPA, WPA2, WAPI
 QoS: WMM, WMM-PS
 WPS: PBC, PIN
3. LibreSync Features
LibreSync modules have extensive software features for connected media streaming and control
applications. These include system level control and interface features as well as networking
features.
Please refer to the full “LibreSync Feature List” for details of supported features.
Platform features can vary based on module configuration/derivatives
and commercial engagement details.

LS6-N22S
Libre Wireless Technologies Data Sheet: Network Media Module, Ver. 3.7 Page 4 of 18
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4. Block Diagram
Figure 4-1: LS6-N22S Block Diagram
5. Specifications
5.1.
General Specification
Parameter Description / Values
Model LS6-N22S
Product Name LibreSync LS6 Network Media Module
Chipset MT7620A
Standard Wi-Fi – IEEE802.11b, IEEE802.11g, IEEE802.11n, standards

LS6-N22S
Libre Wireless Technologies Data Sheet: Network Media Module, Ver. 3.7 Page 5 of 18
Libre Confidential
Data Transfer Rate 1,2,5.5,6,11,12,18,22,24,30,36,48,54,60,90,120, and
maximum of physical layer rate of 130Mbps
Frequency Band 2.4 GHz
Input Voltage 3.3 V ± 5 %
Operating
Temperature
-20˚C to + 55˚C
Dimensions 40mm X 26mm X 5.1mm (L x W x H) ± 0.2mm
5.2.
Wi-Fi Specification
Parameter Description / Values
Standard IEEE802.11b, IEEE802.11g, IEEE802.11n standards
Data Rate  802.11b : 11, 5.5, 2, 1 Mbps
 802.11g : 54, 48, 36, 24, 18, 12, 9, 6 Mbps
 802.11n : MCS 0 to 7 for HT20MHz
Modulation  802.11b : CCK, DQPSK, DBPSK
 802.11g : 64QAM, 16QAM, QPSK, BPSK
 802.11n : 64QAM, 16QAM, QPSK, BPSK
Network
Architecture
 Ad-hoc mode (Peer-to-Peer)
 Infrastructure Mode
Operation Channel 2.4GHz
 11: (Ch. 1-11) – United States
 13: (Ch. 1-13) – Europe
Frequency Range 2.412 ~ 2.483 GHz

LS6-N22S
Libre Wireless Technologies Data Sheet: Network Media Module, Ver. 3.7 Page 6 of 18
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Transmit Output
Power
 802.11b : < 19.5 dBm at 11Mbps
 802.11g : < 16.5 dBm at 54Mbps
 802.11n : < 15.5 dBm at MCS7
Receiver
Sensitivity
 802.11b : -84 dBm at 11Mbps
 802.11g : -73 dBm at 54 Mbps
 802.11n : -64 dBm at 130 Mbps (MCS7)
Security WEP 64&128 bit, WPA, WPA-PSK, WPA2, WPA2-PSK,
WPS, IEEE 802.1x, IEEE 802.11i
Current
Consumption
 TX Mode : 420 mA
 RX Mode : 220 mA
6. Mechanical, Connectors and Interfaces
6.1.
Physical Module
Estimated at 40mm x 26mm x 5.1mm (L x W x H) ± 0.2mm
Figure 6-1: LS6-N22S Physical Dimensions

LS6-N22S
Libre Wireless Technologies Data Sheet: Network Media Module, Ver. 3.7 Page 7 of 18
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 Dimensions are in millimetres
 Dimensional tolerance is +/- 0.2mm
 PCB thickness is 1mm
 Design for 5.1mm physical Z height clearance (space for
shields/clearance)
Figure 6-2: LS6-N22S Top View With and Without Shield
6.2.
Connector Specification
Figure 6-3: LS6-N2SS Connector Specification