Technology of Q 2500 colour TV set
Technology of Q 2500 colour TV set
Technology of Q 2500 colour TV set
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<strong>Technology</strong> <strong>of</strong> Q <strong>2500</strong> <strong>colour</strong> <strong>TV</strong> <strong>set</strong>27 MHzDNCmovementBlack BardeterminationdeterminationI2311SAA4979HLM0-7Main Channel8/ 168ITU 656 // Decoder 1ITU 656Decoder 216/8/Fast Switch16/DynamicNoiceReduction16/FieldMemory3,5 MBitSub Channel16/Sample RateConversion27 to 32 MHzDownSamplingBypass2L0-72C0-3I2C-BusBypassUPSampling7L0-77C0-3SpeichersteuerungSystemcontrolµP - InterfaceSourceSelectµP-BusPanoramicZoom32 MHzLuminanceY10/Y-DelayPeakingYTripleDACUV10Bit10/10/ChrominaceDigital <strong>colour</strong>edgesharpeningDemultiplexerbandwidthdoublin4:4:4U/V4.6.1 Chroma branchIn the design <strong>of</strong> the <strong>colour</strong> television transmissionthe compatibility with normal black/whitesystems must be observed, in order for <strong>colour</strong>transmissions to be received by black andwhite <strong>set</strong>s. For this reason the <strong>colour</strong> informationmust be integrated into the available frequencyspectrum used for the brightness information.Secondly, to prevent interference the bandwidthfor the <strong>colour</strong> signal must be kept asnarrow as possible. For this reason a bandwidth<strong>of</strong> only 1.2 MHz was selected and thecarrier frequency <strong>set</strong> at 4.43 MHz.Document Q <strong>2500</strong> 100 © Loewe ProCollege
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