Place of Origin: Guangdong China (Mainland) Brand Name: HY Model Number: CDMA800
DTGS800: Take place
Specifications
CDM
2.1 Application DescriptionsThe CDMA Wireless Data Module is a complex consumer communications instrument that reliesheavily on both digital signal and embedded processor technologies. The Wireless Data Modulesmanufactured by AnyDATA.NET support Code-Division Multiple Access (CDMA). This operates inthe cellular spectrum band.In a continuing effort to simplify the design and to reduce the size and production cost of theWireless Data Module, AnyDATA.NET has successfully developed the DTG series. The DTGS-800 isAnyDATA.NETs latest compact Wireless Data Module operating in the Cellular spectrum band. TheDTGS-800 contains not only a complete digital modulation and demodulation system for CDMAstandards as specified in IS-95 A/B and IS-2000, but also GPSOne position location solution which offerswireless callers their location wherever and whenever they need it.GPSOne is QUALCOMM CDMA Technologies position location solution. It offers the availabilityof position location determination in hostile environments (such as indoors) where conventionalGPS receivers do not work well.GPSOne uses a hybrid approach that utilizes signals from the GPS satellite constellation and fromCDMA cell sites to determine location. Using the hybrid approach, GPSOne enhances locationservices availability, accelerates the location determination process, and provides improvedaccuracy.The hybrid mode approach for position location uses signals from CDMA cell stations and GPSsatellites to compute the users location. This approach basically takes advantage of an accurateknowledge of GPS system timing on a CDMA mobile station. The knowledge of system timingallows the GPSOne solution to use both the CDMA signal measurements and GPS signalmeasurements collectively to compute the users location. It also allows for a central entity, namedPosition Determination Entity (PDE), to send estimated signal phases to the mobile. This knowledgereduces the time to search the satellite pseudo ranges on the mobile, thus improving the time taken todetermine the users position.The subsystem in the DTGS-800 includes a CDMA processor (MSM6050), an integrated CODECwith an ear piece and microphone amplifiers, and an RS-232 serial interface supporting forward link dataAnyDATA.NET Inc. AnyTime AnyPlace Any Wireless Data SolutionTMAll Rights Reserved. AD-2001-06-28 Ver 1.1-10-communications at a rate of 153kbps.The DTGS-800 provides an external interface that includes the standard RS-232, Digital Audio,External reset control, parallel LCD Display, Keypad, Ringer extension ports and R-UIM for Chinamarket.The DTGS-800 has the capability to power down unused circuits in order to dynamically minimizepower consumption.
2.2.1 General SpecificationsParameters DescriptionsExternal Access Code-Division-Multiple-Access (CDMA)CDMA Protocol IS-95 A/B, IS-98A, IS-126, IS-637A, IS-707A, IS-2000Data Rate 153.6Kbps maxTransmit/Receive Frequency Interval 45MHz for CellularVocoder EVRC, 13kQCELPRF technology Zero Intermediate FrequencyNumber of Channel 832 for CellularOperating Voltage VBATT_INT : +4.0V ±10%VEXT_DC : +4.5V±10%Current Consumption Stand by mode: Idle (90mA), Sleep (less than 1mA)Busy mode: About 520mAOperating Temperature -30ºC ~ +60ºCFrequency Stability ±300Hz for CellularAntenna GSC Connector, 50ohmSize 53 X 33 X 2.7mm with caseWeight About 15gExternal Interface RS-232s, Digital/Analog Audios, LCD, Keypad, RingerExternal Reset Control, R-UIM, MP3, MIDI, GPIOs, USBUser Interface Software BREW supportAdditional Function GPSOne position location solution
CDMA 800module
