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GS2985 Datasheet(PDF) 11 Page - Gennum Corporation |
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GS2985 Datasheet(HTML) 11 Page - Gennum Corporation |
11 / 45 page GS2985 Multi-Rate SDI Reclocker with Equalization & De-emphasis Data Sheet 36663 - 5 July 2012 11 of 45 Proprietary & Confidential 2.3 AC Electrical Characteristics VIH (2.5V operation) − VOUT ≥VOH, min 1.7 − VDD +0.3 V VIH (3.3V operation) VOUT ≥VOH, min 2 − VDD +0.3 V IIN − VIN = 0V or VIN = VDD − +/-10 +/-20 μA VOL (2.5V operation) − VDD = min, IOL = 100 μA −− 0.4 V VOL (3.3V operation) VDD = min, IOL = 100 μA −− 0.4 V VOH (2.5V operation) − VDD = min, IOH = -100 μA 2.1 −− V VOH (3.3V operation) VDD = min, IOH = -100 μA VDD -0.4 −− V Hysteresis Voltage (SPI inputs) − 2.5V operation − 350 − mV 3.3V operation − 420 − mV Table 2-1: DC Electrical Characteristics (Continued) Parameter Symbol Conditions Min Typ Max Units Table 2-2: AC Electrical Characteristics Parameter Symbol Conditions Min Typ Max Units Notes Serial Input Data Rate (for reclocking) DRSDO − 0.27 − 2.97 Gb/s − Serial Input Data Rate (bypass) − DC − 2.97 Gb/s − SPI Operating Speed −− − − 10 MHz − Input Voltage Swing ΔVSDI set ATTEN_EN = 1 for ΔVSDI>1V pp 100 2000 mVp-pd − Output Voltage Swing ΔVOD default 300 400 500 mVp-pd − see DRIVER_1 register (0x01) addresses 8 & 9 in 4.15.14 Host Register Map. 600 800 1000 mVp-pd − Input Trace Equalization − LOW Recommended setting for 0 to 10 inches of FR4 − MED Recommended setting for 10 to 20 inches of FR4 − HIGH Recommended setting for >20 inches of FR4 − |
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