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EVM142AHF Datasheet(PDF) 10 Page - Semtech Corporation |
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EVM142AHF Datasheet(HTML) 10 Page - Semtech Corporation |
10 / 19 page 10 2000 Semtech Corp. www.semtech.com EDGE HIGH-PERFORMANCE PRODUCTS Edge142 Application Information (continued) PIN Descriptions Driver Fan Out The Edge142 is also designed to support the fanning out and deskewing of driver data, driver enable, and load enable signals to multiple test heads. By controlling the multiplexer and output enable signals, the signals may be routed to either test head. By using the Edge142 for timing calibration, the timing generator can generate “pure” timing signals, regardless of the timing errors associated with driving one test head vs. another. Removing the need for the timing generator to perform the deskew function, the restriction on consecutive edges may be improved. Device Under Test Channel N Edge 142 Functions • Test Head to Test Head Deskew – TG restrictions on edge regeneration improved • Driver Data vs. Enable Deskew • Rising vs. Falling Edge Deskew • Test Head Multiplexing • Cable Driver Performance Benefits • Point to Point Routing on all transmission lines TEST HEAD 1 Device Under Test Channel N TEST HEAD 2 Mux Out 1 Out 1 Out 2 Mux Out 0 Data Dvr Enable Timing Generator Edge142 |
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