GS2974A HD-LINX III Adaptive Cable Equalizer Features Description SMPTE 424M, SMPTE 292M and SMPTE 259M The GS2974A is a high-speed BiCMOS integrated circuit compliant designed to equalize and restore signals received over 75 co-axial cable. Automatic cable equalization 0.3UI Maximum Output Jitter at 2.97Gb/s The GS2974A is designed to support SMPTE 424M, SMPTE 292M and SMPTE 259M, and is optimized for performance Multi-standard operation from 143Mb/s to 2.97Gb/s at 1.485Gb/s and 2.97Gb/s. Supports DVB-ASI at 270Mb/s The GS2974A features DC restoration to compensate for Small footprint (4mm x 4mm) the DC content of SMPTE pathological test patterns. Pb-free and RoHS compliant A voltage programmable mute threshold (MCLADJ), Manual bypass (useful for low data rates with slow applicable for SD mode (refer to Section 4.3), is included to rise/fall times) allow muting of the GS2974A output when an approximate Performance optimized for 1.485Gb/s and 2.97Gb/s selected cable length is reached for SMPTE 259M signals. Typical equalized length of Belden 1694A cable: 120m This feature allows the GS2974A to distinguish between at 2.97Gb/s, 200m at 1.485Gb/s, and 350m at 270Mb/s low amplitude SD-SDI signals and noise at the input of the 50 differential output (internal 50 pull-ups) device. The serial digital outputs of the GS2974A may be forced to a mute state by applying a voltage to the MUTE Programmable mute based on max cable length adjust pin. Single 3.3V power supply operation Power consumption is typically 215mW using a 3.3V Operating temperature range: 0C to +70C power supply. The GS2974A is lead-free, and the encapsulation compound does not contain halogenated Applications flame retardant. SMPTE 424M, SMPTE 292M and SMPTE 259M Coaxial Cable Serial Digital Interfaces. This component and all homogeneous subcomponents are RoHS compliant. CABLE LENGTH ADJUSTOR CD CARRIER MCLADJ MUTE DETECT MUTE BYPASS SDO SDI EQUALIZER DC RESTORE OUTPUT SDI SDO AGC GS2974A Functional Block Diagram GS2974A HD-LINX III Adaptive Cable Equalizer www.gennum.com 1 of 16 Data Sheet 42216 - 3 January 2009Revision History Version ECR PCN Date Changes and/or Modifications 3 151331 January 2009 Added 2500pc reel size to 6.6 Ordering Information. Changed the Output Voltage Swing from 550mV to 600mV in p-p p-p Table 2-2: AC Electrical Characteristics. 2 149719 April 2008 Added 0.3UI Maximum Output Jitter at 2.97Gb/s to Features Section and Table 2-2: AC Electrical Characteristics. Changed cables lengths from 100 to 120 and 400 to 350 in Section 4. Detailed Description. Re-wrote Section 4.3 Programmable Maximum Cable Length Adjust (MCLADJ). Added Tape & Reel to 6.6 Ordering Information. 1 145131 May 2007 Converted to Data Sheet. 0 144247 February 2007 Converted to Preliminary Data Sheet. Removed Proprietary and Confidential footer. Modified DC Electrical Characteristics and AC Electrical Characteristics table. Added section 6.4 Marking Diagram. A 143102 December 2006 New Document. GS2974A HD-LINX III Adaptive Cable Equalizer 2 of 16 Data Sheet 42216 - 3 January 2009