FCC Documentation MM-5500SU CDMA 1X/EVDO Data Modem Version : 0.1 Date : Nov. 28, 2004 Maxon Proprietary: Restricted Distribution This document is the sole and exclusive property of Maxon. Not to be distributed or divulged without prior written agreement. 36a Gibson Avenue, Padstow New South Wales, 2211. Australia Phone: +61 2 9707 2000 URL: http//www.maxon.com.au 1/1 Confidential and proprietary information. This document is the sole and exclusive property of Maxon Australia.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem FCC RF EXPOSURE COMPLIANCE In August 1996 the Federal Communications Commission (FCC) of the United States with its action in Report and Order FCC 96-326 adopted an updated safety standard for human exposure to radio frequency (RF) electromagnetic energy emitted by FCC regulated transmitters. Those guidelines are consistent with the safety standard previously set by both U.S. and international standards bodies.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem Table of contents 1. Contact Information ··················································································· 5 2. Product Overview··························································································· 5 2.1 Overview................................................................................................ 5 2.2 What is the MM-5500SU Wireless Modem ........................................... 5 3.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 1. Contact Information If you have any technical queries about this manual, please contact below : Maxon Electronics Australia Pty Ltd 36a Gibson Avenue Padstow, New South Wales 2211 Australia Phone: +61 2 9707 2000 Fax: +61 2 9707 3328 Mr. Ray Sanders – Managing Director Mr. Ashween Prasad – Technical Manager Email: engineering@maxon.com.au 4/4 Confidential and proprietary information. This document is the sole and exclusive property of Maxon Australia.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 2. Product Overview 2.1 Overview The MM-5500SU Wireless Modem performs data communication functions between Host and IS-95A, B, CDMA2000-1X/EVDO CDMA Cellular station. The MM-5500SU Wireless Modem incorporates the wireless-modem functionality with the USB driver and power adaptor interface. The MM-5500SU Wireless Modem connects directly to HOST computer utilizing an USB V1.1 interface.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem Figure 1. Appearance of MM-5500SU 6/6 Confidential and proprietary information. This document is the sole and exclusive property of Maxon Australia. Not to be distributed or divulged without prior written agreement.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 3. Specifications 3.1 Mechanical Specifications Table 1. Mechanical specifications Dimensions 93mm x 79mm x 27mm, include projecting connect parts Weight Approx. 110g , except CDMA antenna and cable assemblies Housing Material CASE – SCM4 , SCM45C , Brackets – AL5052 3.2 Environment Specifications Table 2.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 3.5.1 Transmitter specifications Table 4. Transmitter performances Type of Multiplexing Frequency-Division Duplex Frequency Range 824.64MHz ~ 849.37MHz Channel Number 20CH Bandwidth 1.23MHz Occupied Bandwidth Under 1.32MHz Type of Oscillation PLL Synthesizer & VCTCXO(19.2MHz) VCO Output Frequency Range 1372.08MHz ~ 1421.54MHz ( divide-by-2 frequency range) (686.04MHz ~ 710.77MHz) Intermediate Center Frequency 138.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 3.5.2 Receiver specifications Table 5. Receiver performances Type of Receiving Super Heterodyne Method Frequency Range 869.64MHz ~ 893.37MHz Channel Number 20CH Band width 1.23MHz Type of Oscillation PLL Synthesizer & VCTCXO(19.2MHz) VCO Output Frequency Range 1372.08MHz ~ 1419.54MHz ( divide-by-2 frequency range) (686.04MHz ~ 709.77MHz) Intermediate Center Frequency 183.6MHz Modulation Method QPSK Receiver Sensitivity Under -108dBm @FER=0.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 4. Instruction • To prevent fire or shock hazard, do not expose the unit to rain or moisture. • Do not drop the unit or give a shock to the unit, or it may cause a malfunction. 4.1 Supplied accessories - MM-5500SU CDMA 1X/EVDO Modem unit (1) - CDMA Antenna (1) - USB cable assembly (1) - Power adapter assembly (1) 4.2 Getting start First for mounting the MM-5500SU Wireless Modem, bind to the unit the holding bridles and connect accessory following procedure.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 4.3 Power Cable Guides “PWR” port should be connected with the DC +5 power supply. Table 6. Power connector Termination assignment Connector type Signal name Description 2 pins + DC Power ( DC +5V ) Micro-Fit 3.0 - System reference(ground) Note. To keep overall performance of the MM-5500SU Wireless Modem such as RF, the power supply should meet some electrical characteristics.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 4.4 Data Cable Guides “RS232C” port should be connected with the TE2’s COM port for DM communication. Figure 4. RS-232C cable of MM-5500SU “USB” port should be connected with the TE2’s USB port for data communication. Figure 5. USB cable of MM-5500SU Multiple service function (ex: SMS, Data and DM communication) of the MM-5500SU Wireless Modem will be serviced to out device through RS-232 and/or USB interface.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 4.5 LED Display Guides The MM-5500SU has four-LED Display that indicates status of the CDMA Engine. Below the Table 7 shows the status meaning. Table 7.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 5. Circuit description 5.1 MM-5500SU interface board circuit description The MM-5500SU interface board consists of the CDMA Engine(Model name: CCE-550), power generation part, RS-232 & USB transceiver part, LED driver part and connectors. The Fig 1-1 is block diagram of MM-5500SU interface board and CDMA Engine.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 5.3 RS-232 part (MM-5500SU interface board) The MM-5500SU wireless modem communicates with PC for DM(Diagnostic Mode) port that indicates the CDMA modem’s status. The CDMA Engine contains UART(Universal Asynchronous Receiver / Transmitter) for DM. The CDMA Engine provides 3.0V CMOS level signals and it is translated to RS-232C signal level at the MM-5500SU interface board. 5.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 5.6 CDMA Engine circuit description 5.6.1 RF part (CDMA Engine) RF part consists of power part, synthesizing part, transmission and reception part. Fig 4.2 CDMA Engine block diagram of RF part circuit << CDMA Engine >> S1M8656A Figure 8. CDMA Engine(CCE-550) block diagram 16/16 Confidential and proprietary information. This document is the sole and exclusive property of Maxon Australia. Not to be distributed or divulged without prior written agreement.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 5.6.1.1 Frequency synthesizing Part (for CDMA Engine) Frequency synthesizing part called PLL Synthesizer consists of three synthesizer circuit which is first local synthesizer, Tx IF synthesizer and Rx IF synthesizer. The first local synthesizer generates the primary local system oscillation frequency, operating over 1372.08 ~ 1419.54 MHz frequency range. Tx IF and Rx IF synthesizer generate the second local oscillation frequency, 267.2 MHz and 367.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 5.6.2 Logic Part (CDMA Engine) 5.6.2.1 DC Power supply Part(CDMA Engine) The voltage regulator on interface board step-downs the supplied voltage to 3.75V for CDMA Engine. Each block of CDMA Engine uses low-drop-output linear regulator. - U500 : voltage regulator for digital circuit ( 2.8 DC ) - U501 : voltage regulator for VC-TCXO and S1M8656A( 3.0V DC ) - U502 : voltage regulator for RF Rx part ( 3.0V DC ) - U503 : voltage regulator for RF Tx part ( 2.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 6. Range of operating power levels and description of means for variation of operating power Dynamic range of output power is from –56dBm to +24.5dBm with ±0.3dB variation in CDMA mode. A temperature-compensated TX AGC (Automatic Gain Control) amplifier with 85dB gain range is included in the RFT3100. The transmit output power level is directly controlled by varying the gain of this TX AGC amplifier.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 7. Description of frequency determining and stabilizing circuitry Frequency synthesizing part is composed of the first local RX IF synthesizer which is single mode PLL synthesizer and the internal Tx IF and Rx IF synthesizer which are in RFT3100 and S1M8656A chip. These parts generate the first local oscillation frequency, Rx IF frequency and Tx IF frequency. - First local frequency Synthesizer : 1372.08 MHz ~ 1419.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 8. Description of circuit employed for suppression of spurious radiation In the CDMA transmit signal path, the frequency spectrum at the output of the CDMA DACs contains unwanted frequency components due to the DAC output transition edges and transients. The transmit clock frequency and harmonics are found in the spectrum.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem 9. Description of modulation system used The CDMA Engine consists of MSM, baseband analog interface (RFT3100, S1M8656A) as modulation system. The MSM integrates functions of a CDMA processing, a digital FM(DFM) processing, CDMA subsystem in the MSM performs CDMA signal processing about CDMA modulation / demodulation, viterbi coding/decoding, interleaving/de-interleaving, and etc.
FCC Documentation MM-5500SU CDMA 1X/EVDO Modem The transmitter IF VCO is set to 267.2 MHz by an external varactor-tuned resonant tank circuit. An internal phase-lock loop and external loop filter network provides the feedback to the varactor that tune the VCO precisely to 267.2 MHz. A master-slave divide-by-two circuit generates I and Q signals in precise quadrature for the mixers. S1M8656A MSM5500 Figure 12. S1M8656A and RFT3100 functional block diagram 23/23 Confidential and proprietary information.
