GS9074ACNE3 Semtech

GS9074A HD-LINX II Adaptive Cable Equalizer Features Description SMPTE 259M compliant The GS9074A is a second-generation high speed BiCMOS integrated circuit designed to equalize and restore signals Automatic cable equalization received over 75 co-axial cable. Multi-standard operation from 143Mb/s to 360Mb/s The GS9074A is designed to support SMPTE 259M, and is Supports DVB-ASI at 270Mb/s optimized for performance at 270Mb/s. Small footprint (4mm x 4mm) The GS9074A features DC restoration to compensate for Pb-free and RoHS compliant the DC content of SMPTE pathological test patterns. Manual bypass (useful for low data rates with slow rise/fall times) A voltage programmable mute threshold (MCLADJ) is included to allow muting of the GS9074A output when an Performance optimized for 270Mb/s approximate selected cable length is reached for SMPTE Typical maximum equalized length of Belden 1694A 259M signals. This feature allows the GS9074A to cable: 350m at 270Mb/s distinguish between low amplitude SD-SDI signals and 50 differential output (with internal 50 pull-ups) noise at the input of the device. The serial digital outputs of Manual output mute or programmable mute based on the GS9074A may be forced to a mute state by applying a max cable length adjust voltage to the MUTE 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 GS9074A is lead-free, and the encapsulation compound does not contain halogenated Applications flame retardant (RoHS compliant). SMPTE 259M Coaxial Cable Serial Digital Interfaces CABLE LENGTH ADJUSTOR CD CARRIER DETECT MCLADJ MUTE MUTE BYPASS SDO SDI EQUALIZER DC RESTORE OUTPUT SDI SDO AGC Figure A: GS9074A Functional Block Diagram GS9074A HD-LINX II Adaptive Cable Equalizer 1 of 17 www.gennum.com Data Sheet 34166 - 5 December 2011Revision History Version ECR PCN Date Changes and/or Modifications 5 157362 December 2011 Added 250pc tape & reel part number to Table 8-2: Ordering Information. 4 153754 November 2009 Updated to latest Gennum template. 3 139635 38695 March 2006 Corrected pad standoff height and tolerances for pad width and package dimension. Corrected pad shape. 2 138357 37278 November 2005 Converted to Data Sheet. 1 137888 September 2005 Corrected process to BiCMOS. 0 136165 March 2005 Converted to Preliminary Data Sheet. Updated typical application circuit. Updated Input/Output circuits. Updated AC and DC electrical characteristics. Updated description of MUTE and CD functionality. Corrected minor typing errors. Updated center pad dimensions on PCB footprint. A 135927 February 2005 New document. Contents Features.................................................................................................................................................................1 Applications.........................................................................................................................................................1 Description...........................................................................................................................................................1 Revision History .................................................................................................................................................2 1. Pin Out...............................................................................................................................................................3 1.1 GS9074A Pin Assignment ..............................................................................................................3 1.2 GS9074A Pin Descriptions .............................................................................................................3 2. Electrical Characteristics ............................................................................................................................5 2.1 Absolute Maximum Ratings ..........................................................................................................5 2.2 DC Electrical Characteristics ........................................................................................................5 2.3 AC Electrical Characteristics ........................................................................................................6 3. Solder Reflow Profiles..................................................................................................................................8 4. Test Circuit.......................................................................................................................................................9 5. Input / Output Circuits ............................................................................................................................. 10 6. Detailed Description.................................................................................................................................. 12 6.1 Serial Digital Inputs ...................................................................................................................... 12 6.2 Cable Equalization ........................................................................................................................ 12 6.3 Programmable Mute Output ...................................................................................................... 13 6.4 Mute and Carrier Detect .............................................................................................................. 13 7. Application Information .......................................................................................................................... 14 7.1 Typical Application Circuit ........................................................................................................ 14 8. Package and Ordering Information...................................................................................................... 15 8.1 Package Dimensions ..................................................................................................................... 15 8.2 Recommended PCB Footprint ................................................................................................... 16 8.3 Packaging Data ............................................................................................................................... 16 8.4 Ordering Information ................................................................................................................... 17 GS9074A HD-LINX II Adaptive Cable Equalizer 2 of 17 Data Sheet 34166 - 5 December 2011