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SCAN921821 Datasheet(PDF) 4 Page - Texas Instruments |
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SCAN921821 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 16 page SCAN921821 SNLS173C – SEPTEMBER 2004 – REVISED APRIL 2013 www.ti.com DC Electrical Characteristics (continued) Over recommended operating supply and temperature ranges unless otherwise specified. (1)(2) Symbol Parameter Conditions Min Typ Max Units Pre-Emphasis Level = 1 1.10 1.24 1.35 Pre-Emphasis Level = 2 1.35 1.47 1.55 Pre-Emphasis Level = 3 1.55 1.70 1.80 Pre-Emphasis Output QPOV Voltage Ratio Pre-Emphasis Level = 4 1.80 1.91 1.95 | VODPRE / VOD | Pre-Emphasis Level = 5 1.95 2.08 2.20 Pre-Emphasis Level = 6 2.10 2.21 2.35 Pre-Emphasis Level = 7 2.15 2.30 2.50 Output Short Circuit IOS DO = 0V, Din = H, PWDN and EN = 2.4V -10 -25 -75 mA Current PWDN or EN = 0.8V, DO = 0V (3) -10 ± 1 +10 µA TRI-STATE Output IOZ Current PWDN or EN = 0.8V, DO = VDD (3) -55 ± 6 +55 µA Power Supply Current (DVDD, PVDD and AVDD Pins) f = 66 MHz, PRBS-15 160 225 mA Pattern Total Supply Current CL = 15pF, IDD f = 66 MHz, Worst Case (includes load current) RL = 100 Ω Pattern (Checker-Board 180 mA Pattern) f = 66 MHz, PRBS-15 240 mA Pattern Total Supply Current CL = 15pF, IDDP with Pre-Emphasis f = 66 MHz, Worst Case RL = 100 Ω (includes load current) Pattern (Checker-Board 280 325 mA Pattern) Supply Current IDDX PWDN = 0.8V, EN = 0.8V 1.0 3.0 mA Powerdown (3) IOZ is measured at each pin. The DOUT pin not under test is floated to isolate the TRI-STATE current flow. Timing Requirements for TCLK Over recommended operating supply and temperature ranges unless otherwise specified. (1) (2) Symbol Parameter Conditions Min Typ Max Units tTCP Transmit Clock Period 15.2 T 66.7 ns Transmit Clock High tTCIH 0.4T 0.5T 0.6T ns Time Transmit Clock Low tTCIL 0.4T 0.5T 0.6T ns Time TCLK Input Transition tCLKT 3 6 ns Time tJIT TCLK Input Jitter See (3) 80 ps (RMS) (1) Typical values are given for VCC = 3.3V and TA = +25°C. (2) Current into device pins is defined as positive. Current out of device pins is defined as negative. Voltages are referenced to ground except VOD, ΔVOD, VTH and VTL which are differential voltages. (3) Specified by design using statistical analysis. 4 Submit Documentation Feedback Copyright © 2004–2013, Texas Instruments Incorporated Product Folder Links: SCAN921821 |
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