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GS2978 Scheda tecnica(PDF) 4 Page - Gennum Corporation |
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GS2978 Scheda tecnica(HTML) 4 Page - Gennum Corporation |
4 / 15 page GS2978 HD-LINX® III Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 37186 - 7 March 2009 4 of 15 1. Pin Out 1.1 Pin Assignment Figure 1-1: 16-Pin QFN 1.2 Pin Descriptions Center Pad (bottom of package) GS2978 (top view) 1 VEE DDI DDI 2 3 4 SDO SDO VCC 12 11 10 9 5 7 6 8 13 14 15 16 RSET SD/HD Table 1-1: Pin Descriptions Pin Number Name Timing Type Description 1,2 DDI, DDI Analog Input Serial digital differential input. 3VEE – Power Most negative power supply connection. Connect to GND. 4RSET Analog Input External output amplitude control resistor. 5,8,13,14, 15,16 NC –– No Connect. Not bonded internally. 7RSVD – Reserved Do not connect. 6DISABLE Non Synchronous Input Serial output disable. When asserted LOW, the SDO/SDO output driver is powered off. SDO/SDO will float to VCC through the pull-up resistor. 9VCC – Power Most positive power supply connection. Connect to +3.3V. 10 SD/HD Non Synchronous Input Output slew rate control. When set HIGH, the output will meet SMPTE 259M rise/fall time specifications. When set LOW, the serial outputs will meet SMPTE424M and SMPTE 292M rise/fall time specifications. |
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