GS9078ACNE3 Semtech

GS9078A HD-LINX II Multi-Rate Cable Driver GS9078A Data Sheet Features Description SMPTE 259M and SMPTE 344M compliant The GS9078A is a second generation high-speed BiCMOS integrated circuit designed to drive one or two Dual coaxial cable driving outputs with selectable 75 co-axial cables. slew rate 50 differential PECL input The GS9078A may drive data rates up to 540Mb/s and provides two selectable slew rates in order to achieve Pb-free and RoHS compliant compliance to SMPTE 259M and SMPTE 344M. Seamless interface to other HD-LINX II family products The GS9078A accepts a LVPECL level differential input that may be AC coupled. External biasing resistors at Single 3.3V power supply operation the inputs are not required. Operating temperature range: 0C to 70C Power consumption is typically 168mW using a 3.3V Applications power supply. The GS9078A is Pb-free, and the SMPTE 259M and SMPTE 344M Coaxial Cable encapsulation compound does not contain halogenated Serial Digital Interfaces. flame retardant. This component and all homogeneous subcomponents are RoHS compliant. BANDGAP REFERENCE AND BIASING CIRCUIT R SET SDI SDO INPUT OUTPUT STAGE & DIFFERENTIAL CONTROL PAIR SDI SDO Functional Block Diagram 34165 - 4 March 2006 1 of 14 www.gennum.comGS9078A Data Sheet Contents 1. Pin Out ......................................................................................................................3 1.1 Pin Assignment ...............................................................................................3 1.2 Pin Descriptions ..............................................................................................3 2. Electrical Characteristics...........................................................................................4 2.1 Absolute Maximum Ratings ............................................................................4 2.2 Solder Reflow Profiles .....................................................................................4 2.3 DC Electrical Characteristics ..........................................................................5 2.4 AC Electrical Characteristics ...........................................................................6 3. Input / Output Circuits ...............................................................................................7 4. Detailed Description ..................................................................................................8 4.1 Input Interfacing ..............................................................................................8 4.2 Output Interfacing ...........................................................................................8 4.3 Output Return Loss Measurement ................................................................10 4.4 Output Amplitude (RSET) .............................................................................10 5. Application Information............................................................................................11 5.1 PCB Layout ...................................................................................................11 5.2 Typical Application Circuit .............................................................................11 6. Package & Ordering Information.............................................................................12 6.1 Package Dimensions ....................................................................................12 6.2 Recommended PCB Footprint ......................................................................13 6.3 Packaging Data .............................................................................................13 6.4 Ordering Information .....................................................................................13 7. Revision History ......................................................................................................14 34165 - 4 March 2006 2 of 14