Lorex Technology MC2110 RF MODULE DIGITAL INTERFACE User Manual Module Rev 1

Lorex Technology Inc. RF MODULE DIGITAL INTERFACE Module Rev 1

Contents

Users Manual

User ManualCUSTOMER PRODUCT 2.4GHz Wireless Digital Transceiver Module MODEL NO. DRF-TR001( LW2110, LW2110PK2B) DATE Nov. 2007 義聯科技股份有限公司ELANsat Technologies Inc. 5F, No.12, Innovation Road Ⅰ, Science-Based Industrial Park, Hsin-chu, Taiwan, R.O.C. TEL：+886-3-563-5105 FAX：+886-3-563-5107 http：//www.elansat.com E-mail：sales@elansat.com DOC NO：Preliminary 1.0
1( LW2110, LW2110PK2B)00RT-FRDWireless Digital Transceiver ELANsatPage of 72007.12.06 www.elansat.comVersion: 1.01FeaturesAuto ACK & retransmitOn the air max. data rate 2MpbsDigital interface (SPI) speed 0~8 MbpsSoftware selectable channel form 2402MHz to 2478MHz (77 Selectable channels)Short switching time enable frequency hoppingPower supply range: 3 V to 3.6 VMinimum number of external componentLow power consumption: 3.3V, 30mATransmission distance: 100 m (Line of sight)Outline: 23.2 x 20.8 x 4.3 mm47 CFR Part 15 Subpart A Section 15.21ApplicationsKeyless EntryWireless data communicationAlarm and security systems – Wireless home security, Video Door Bell, Video door phoneHome automationSurveillance – Wireless P-CAM, Video Baby MonitorAutomotive – Wireless Vision-Based Robotic System, Automotive AccessoryTelemetryIntelligent sports equipment, Video Rockie-TalkieIndustrial sensorsToys – Camera Radio Controlled ToyWireless Photo FrameBenefitsReady for productionReduce time to marketRemove complicity of RF designNo RF experience requireNo expensive RF equipment requirePlug and playNo fuse on turning and trimmingNo need for expensive external antenna
1( LW2110, LW2110PK2B)00RT-FRDWireless Digital Transceiver ELANsatPage of 72007.12.06 www.elansat.comVersion: 1.0 2Specification Limits Parameter MIN TYP MAXUnitPower Section Supply Voltage 3 3.3 3.6 VSupply Current in Tx mode 23 30 33 mASupply Current in Rx mode 17 18 19 mADigital Input Section High level input voltage 2.1 2.25 VppLow level input voltage 0 1.08 VppDigital Output Section High level output voltage 2.7 3.6 VppLow level output voltage 0 0.3 VppRF Section Frequency Range 2400 - 2525 MHzChannel Bandwidth 1.8 2 MHzTX Power 12 14 16 dBmRX Sensitivity -81 dBmOperation Operating Temperature -10 - +60 ℃
1( LW2110, LW2110PK2B)00RT-FRDWireless Digital Transceiver ELANsatPin Configuration and Mechanical Information Page of 72007.12.06 www.elansat.comVersion: 1.0 3
1( LW2110, LW2110PK2B)00RT-FRDWireless Digital Transceiver ELANsatPin Description No. Symbol Function1 VCC Power Supply 2 GND Ground3IRQ Maskable interrupt pin 4 MISO Master Input, Slave Output (output from slave) 5 MOSI Master Output, Slave Input (output from master) 6 SCK Serial Clock (output from master) 7 CSN Chip Select 8 CE Chip Enable Activates RX or TX mode 9 X10 GND GroundPage of 72007.12.06 www.elansat.comVersion: 1.0 4
1( LW2110, LW2110PK2B)00RT-FRDWireless Digital Transceiver ELANsatPage of 72007.12.06 www.elansat.comVersion: 1.05PCB layout guidelineAny metal (including PCB track and holding screw) around the antenna will result in changingimpedance and radiation pattern of the antenna. These two parameters are the most important forantenna performance. Reserve space around the antenna as much as possible. Connect all parts as close as possible to the pins of module and reduce the length of routingtraces, to help on good audio performance, proper antenna pattern and EMC.When designing the receiver module in wireless speakers and headphones, the important designconsiderations are as follows:1. Keep metal objects away from the antenna by 3 cm distance at least to avoid degradation onthe antenna. For example, speaker unit, transformer, adaptor, wire, cable and other big metalobject beside antenna will degrade the antenna performance.2. Use regulated DC-power-supply to the modules, and separate the DC-power-supply of modulewith the other circuits.Antenna1. Wire Antenna: A 27~31mm plastic-covered wire can be used as antenna. In principle, 31mmlength is for a wire without any cover or very thin cover. The thicker of the cover, the shorter of theantenna length. Try various length for a certain wire to optimize the transmission distance.2. Antenna Soldering:standrd equipmentThe module is the only antenna that may be used TYPE:C1073-510001-A(SSR-80521)
1( LW2110, LW2110PK2B)00RT-FRDWireless Digital Transceiver ELANsatOperationBlock Diagram of DRF-TR001The SPI data then is fed to SOIC for encoding, FSK-modulation, frequency conversion, andamplification.RF signal between SOIC and antenna is separated to two paths: transmission and receiving (bytwo RF switches). Transmitted RF Signal from SOIC is following by a power amplifier to increaseoutput power and transmission distance.Page of 72007.12.06 www.elansat.comVersion: 1.06RF signal between SOIC and antenna is separated to two paths: transmission and receiving (bytwo RF switches). Transmitted RF Signal from SOIC is following by a power amplifier to increaseoutput power and transmission distance.FCC Transmitter Notice:This equipment has been certified and found to comply with the limits regulated by the FCC 47 CFR part15, subpart A Section 15.21.You are cautioned that changes or modifications not expressly approved by the partresponsible for compliance could void the user＇s authority to operate the equipment.
(LW2110, LW2110PK2B)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.This radio transmitter (identify the device by certification number, or model number if Category II) has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.UCZM211015.247 8：2010 88575A-LW2110UCZM21108575A-LW2110

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