GS1504

HD-LINX ™ GS1504 HDTV Adaptive Equalizer PRELIMINARY DATA SHEET FEATURES SMPTE 292M compliant Automatic, adjustment free cable equalization for 1.485Gb/s HDTV signals Differential serial outputs capable of driving 50Ω loads Typically equalizes 100m of Belden 8281 or 150m of Belden 1694 high quality co-axial cable Cable Length Indication Output Mute Maximum Cable Length Adjust Low power Minimal external components Single +5V or -5V power supply operation APPLICATIONS 1.485Gb/s HDTV Serial Digital Receiver Interfaces for Routers, Distribution Amplifiers, Switchers, and other receiving equipment. DESCRIPTION The GS1504 is a high performance cable equalizer designed to equalize HDTV component signal conforming to SMPTE 292M. The adaptive cable equalizer is capable of equalizing up to 100m of Belden 8281 co-axial cable. The GS1504 features DC restoration for immunity to the DC content in pathological test patterns. The device also incorporates a Cable Length Indicator signal that provides an indication of the amount of cable being equalized. A voltage programmable mute threshold (MCLADJ) is included to allow muting of the GS1504 output when a selected cable length is reached. This feature allows the GS1504 to distinguish between low amplitude HD SDI signals and noise at the input of the device. The CD/Mute pin provides an indication of the GS1504 mute status in addition to functioning as a mute control input. The output of the GS1504 may be forced to an active ...