GS2988-INTE3 Semtech

GS2988 Dual-Slew-Rate, Cable Driver with 3Gb/s Capability Features Description SMPTE 424M, SMPTE 292M and SMPTE 259M The GS2988 is a high-speed BiCMOS integrated circuit designed to drive one to two 75 coaxial cables. compliant Supports DVB-ASI at 270Mb/s The GS2988 may drive data rates up to 2.97Gb/s and provides two selectable slew rates in order to achieve Supports data rates from 270Mb/s to 2.97Gb/s compliance to SMPTE 424M, SMPTE 292M and SMPTE Wide common-mode range input buffer 259M. 100mV sensitivity The GS2988 accepts industry-standard differential input supports DC-coupling to industry-standard levels including LVPECL and CML. differential logic Input trace equalization compensates for up to 10 inches of on-chip 100 differential data input termination FR4 trace loss while in HD and 3G modes. This feature can be disabled using the EQ EN pin. Input signal trace equalization The DISABLE pin powers-down the entire device. Differential coaxial-cable-driving output The GS2988 features adjustable output swing using an selectable slew rates external bias resistor. The single-ended output swing is adjustable output swing from 500mVpp to adjustable from 500mVpp to 1800mVpp. 1800mVpp An output signal presence function, the OSP pin, indicates DISABLE control whether an active signal is present at the output of the Robust output signal presence function GS2988. Excellent output eye quality The GS2988 can be powered from either a 3.3V or a 2.5V Power supply operation at 3.3V or 2.5V supply. Power consumption is typically 110mW using a 2.5V power supply. 110mW power consumption (2.5V supply) The GS2988 is Pb-free, and the encapsulation compound Operating temperature range: -40C to +85C does not contain halogenated flame retardant. Small footprint QFN package (4mm x 4mm) This component and all homogeneous subcomponents are Drop-in compatible to the GS2978 RoHS compliant. Pb-free and RoHS compliant Applications SMPTE 424M, SMPTE 292M and SMPTE 259M coaxial cable serial digital interfaces GS2988 Dual-Slew-Rate, Cable Driver with 3Gb/s 1 of 17 www.gennum.com Capability Data Sheet 52131 - 4 December 2010EQ EN SD/HD DISABLE DDI SDO Slew Rate Equalizer Control DDI SDO Output Signal OSP Band Gap Reference Presence & Output Control RSET Functional Block Diagram Revision History Version ECR PCN Date Changes and/or Modifications 4 155552 December 2010 Corrected the Marking Diagram. 3 155359 November 2010 Clarified the functionality of the EQ EN pin in Table 1-1: Pin Descriptions and throughout the document. 2 155070 October 2010 Updated Typical Application Circuit. 1 153602 February 2010 Converted document to Data Sheet. 0 153455 January 2010 Converted document to Preliminary Data Sheet. Changed Additive jitter numbers in Table 2-2: AC Electrical Characteristics. B 152690 October 2009 Updates to Section 2. Electrical Characteristics. Corrections to Section 3. Input/Output Circuits. A 151623 April 2009 New document. GS2988 Dual-Slew-Rate, Cable Driver with 3Gb/s 2 of 17 Capability Data Sheet 52131 - 4 December 2010