GS2978-CNE3 Semtech

GS2978 HD-LINX III Multi-Rate Dual Slew-Rate Cable Driver Features Description SMPTE 424M, SMPTE 292M, SMPTE 344M and SMPTE The GS2978 is a high-speed BiCMOS integrated circuit 259M compliant designed to drive one or two 75 co-axial cables. Dual coaxial cable driving outputs with selectable The GS2978 may drive data rates up to 2.97Gb/s and slew rate provides two selectable slew rates in order to achieve 50 differential PECL input compliance to SMPTE 424M, SMPTE 259M, SMPTE 344M and SMPTE 292M. Pb-free and RoHS compliant Seamless interface to other HD-LINX III family The GS2978 accepts a LVPECL level differential input that products may be AC coupled. External biasing resistors at the inputs are not required. Single 3.3V power supply operation Operating temperature range: 0C to 70C Power consumption is typically 168mW using a 3.3V power supply. The GS2978 is Pb-free, and the Applications encapsulation compound does not contain halogenated flame retardant. SMPTE 424M, SMPTE 292M, SMPTE 344M and SMPTE 259M Coaxial Cable Serial Digital Interfaces. This component and all homogeneous subcomponents are RoHS compliant. BANDGAP REFERENCE AND BIASING CIRCUIT R SET DDI SDO INPUT OUTPUT STAGE & DIFFERENTIAL CONTROL PAIR DDI SDO SD/HD DISABLE Functional Block Diagram GS2978 1 of 15 www.gennum.com HD-LINX III Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 37186 - 7 March 2009Revision History Version ECR PCN Date Changes and/or Modifications 7 151357 March 2009 Added 2.5k reel option to section 6.6 Ordering Information. Added maximum power consumption value to Table 2-1: DC Electrical Characteristics. 6 150277 August 2008 Updated data sheet format. Added Tape & Reel Part Number to 6.6 Ordering Information. 5 147849 October 2007 Changed minimum value of differential input signal amplitude in Section 4.1. 4 147552 September Changed Input Voltage Swing in Table 2-2: AC Electrical Characteristics. 2007 3 146309 July 2007 Corrected part number typo in Ordering Information on page 14. 2 144827 41693 April 2007 Added Table 4-1: RSET vs. VOD. 1 142318 November 2006 Converting to Data Sheet. Added section 6.4 Solder Reflow Profiles. Added typical ORL values in AC Electrical Characteristics. 0 140608 May 2006 Changed to Preliminary Data Sheet. Removed references to trial publication for SMPTE 424M. Modified I /I conditions to 10A in DC IH IL Electrical Characteristics and additive jitter in AC Electrical Characteristics. Added section 4.3 Output Return Loss Measurement. B 139766 March 2006 Corrected pad standoff height and tolerances for pad width & package dimension. Corrected pad shape. A 138454 February 2006 New document. GS2978 2 of 15 HD-LINX III Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 37186 - 7 March 2009