User Manual DDS200 Digital Demodulation System 070-9952-00

Appendix A: SpecificationsTable A–1: Electrical Specifications (cont.)CharacteristicsRequirementsSupplemental informationInsertion loss (64 QAM) 1.5 dBSymbol rate, typical 1.5 to 7.0 MBaud When setting the symbol rate value, the accuracy should be to threedecimal places Symbol rate 6.9 MBaudEqualizerSelf adapting, selectable with freeze modeReed-Solomon decoder 204, 188 byte t=8, selectableBit error rate display range 10 -3 to 10 -10Interleaving Forney, L=12Energy dispersalIESS 309 to DVB specificationInternal Noise Generator (OptionB5)Signal/Noise ratio, typical 12 to 62 dBResolution0.1 dBFilter selectionAutomatic conversion and correct setting of S/N ratio based onselected filter.OutputsParallel MPEG2 transportConnector: rear-panel 25-pinstreamStandardLVDS (188 or 204 bytes), DVB-A010Source impedance, typical 100 DC component, typicalSignal amplitude, typicalTransmission link length(Max)Serial MPEG2 transport streamStandardSource impedance, typicalDC component, typicalSignal amplitude, typical1.25 V247 mV to 454 mV75 0 V0.9 V p-pApproximately 5 metersConnector: rear-panel female type BNCASITransmission rate, typical 270 Mbit/s FixedQAM serial dataConnector: rear-panel female type BNC(before Reed-Solomon)Source impedance, typical 75 QAM serial clock outputSource impedance,typical75 Connector: rear-panel female type BNCA–2 DDS200 Digital Demodulation System User Manual