OPCOM X0738CSF 2.4GHz Wireless Digital Transceiver Module User Manual Features

OPCOM Inc. 2.4GHz Wireless Digital Transceiver Module Features

manual

User Manual CUSTOMER PRODUCT 2.4GHz Wireless Digital Transceiver Module MODEL NO. DRF-TR001 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
100RT-FRDWireless Digital Transceiver ELANsatPage of 7 2007.12.06 www.elansat.comVersion: 1.0 1FeaturesAuto ACK & retransmit On the air max. data rate 2Mpbs Digital interface (SPI) speed 0~8 Mbps Software selectable channel form 2402MHz to 2478MHz (77 Selectable channels) Short switching time enable frequency hopping Power supply range: 3 V to 3.6 V Minimum number of external component Low power consumption: 3.3V, 30mA Transmission distance: 100 m (Line of sight) Outline: 23.2 x 20.8 x 4.3 mm CE 300 328 and FCC 15.247 certificated ApplicationsKeyless Entry Wireless data communication Alarm and security systems – Wireless home security, Video Door Bell, Video door phoneHome automationSurveillance – Wireless P-CAM, Video Baby Monitor Automotive – Wireless Vision-Based Robotic System, Automotive AccessoryTelemetryIntelligent sports equipment, Video Rockie-TalkieIndustrial sensorsToys – Camera Radio Controlled ToyWireless Photo FrameBenefits Ready 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
DRF-TR001 Wireless Digital Transceiver ELANsat Page of 7 2007.12.06 www.elansat.com Version: 1.0 2 Specification Limits Parameter MIN TYP MAX Unit Power Section Supply Voltage 3 3.3 3.6 V Supply Current in Tx mode 23 30 33 mA Supply Current in Rx mode 17 18 19 mA Digital Input Section High level input voltage 2.1 2.25 Vpp Low level input voltage 0 1.08 Vpp Digital Output Section High level output voltage 2.7 3.6 Vpp Low level output voltage 0 0.3 Vpp RF Section Frequency Range 2400 - 2525 MHz Channel Bandwidth 1.8 2 MHz TX Power 12 14 16 dBm RX Sensitivity -81 dBm Operation Operating Temperature -10 - +60 ℃
DRF-TR001 Wireless Digital Transceiver ELANsat Pin Configuration and Mechanical Information Page of 7 2007.12.06 www.elansat.com Version: 1.0 3
DRF-TR001 Wireless Digital Transceiver ELANsat Pin Description No. Symbol Function 1 VCC Power Supply 2 GND Ground 3 IRQ 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 X 10 GND Ground Page of 7 2007.12.06 www.elansat.com Version: 1.0 4
DRF-TR001 Wireless Digital Transceiver ELANsat Page of 7 2007.12.06 www.elansat.com Version: 1.0 5PCB layout guideline Any metal (including PCB track and holding screw) around the antenna will result in changing impedance and radiation pattern of the antenna. These two parameters are the most important for antenna 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 routing traces, to help on good audio performance, proper antenna pattern and EMC. When designing the receiver module in wireless speakers and headphones, the important design considerations are as follows: 1. Keep metal objects away from the antenna by 3 cm distance at least to avoid degradation on the antenna. For example, speaker unit, transformer, adaptor, wire, cable and other big metal object beside antenna will degrade the antenna performance. 2. Use regulated DC-power-supply to the modules, and separate the DC-power-supply of module with the other circuits. Antenna 1. Wire Antenna: A 27~31mm plastic-covered wire can be used as antenna. In principle, 31mm length is for a wire without any cover or very thin cover. The thicker of the cover, the shorter of the antenna length. Try various length for a certain wire to optimize the transmission distance. 2. Antenna Soldering:
DRF-TR001 Wireless Digital Transceiver ELANsat Operation Block Diagram of DRF-TR001 The SPI data then is fed to SOIC for encoding, FSK-modulation, frequency conversion, and amplification. RF signal between SOIC and antenna is separated to two paths: transmission and receiving (by two RF switches). Transmitted RF Signal from SOIC is following by a power amplifier to increase output power and transmission distance. Page of 7 2007.12.06 www.elansat.com Version: 1.0 6RF signal between SOIC and antenna is separated to two paths: transmission and receiving (by two RF switches). Transmitted RF Signal from SOIC is following by a power amplifier to increase output power and transmission distance.
DRF-TR001 Wireless Digital Transceiver ELANsatThis device complies with Part 15 of FCC Rules and RSS-Gen of IC 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. Note: This equipment contains module, FCC ID: UDRX0738CSF and IC: 0976B-D0738CSF, which qualifies as an UNLICENSED MODULAR TRANSMITTER per FCC Public Notice DA 00-1407 and RSS-Gen Section: 7.1.1. It has been tested and found to comply with Part 15.249 of the FCC Rules and RSS-210 issue 7:2007, Annex 2.9. Required labeling. Any device incorporating this module must include an external, visible, permanent marking or label which states: “Contains FCC ID: UDRX0738CSF” “Contains IC: 0976B-D0738CSF” Failure to comply with this requirement will void the user’s authority to operate any device that incorporates this module. This equipment complies with FCC/IC radiation exposure limits set forth for uncontrolled equipment and meets the FCC radio frequency (RF) Exposure Guidelines in Supplement C to OET65 and RSS-102 of the IC radio frequency (RF) Exposure rules. This equipment has very low levels of RF energy that it is deemed to comply without testing of specific absorption ratio (SAR). 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 permitted for successful communication. Page 7 of 7 2007.12.06 www.elansat.com Version: 1.0

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