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ADS62P28 Datasheet(PDF) 11 Page - Texas Instruments |
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ADS62P28 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 76 page ADS62P49 / ADS62P29 ADS62P48 / ADS62P28 www.ti.com............................................................................................................................................................. SLAS635A – APRIL 2009 – REVISED JUNE 2009 TIMING REQUIREMENTS – LVDS AND CMOS MODES (continued) Typical values are at 25°C, AVDD = 3.3V, DRVDD = 1.8V, sampling frequency = 250 MSPS, sine wave input clock, 1.5 Vpp clock amplitude, CLOAD = 5pF , RLOAD = 100Ω , (unless otherwise noted). Min and max values are across the full temperature range TMIN = –40°C to TMAX = 85°C, AVDD = 3.3V, DRVDD = 1.7V to 1.9V PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Output buffer enable (OE) tOE Time to valid data after output buffer becomes active 100 ns to data delay Table 1. LVDS Timings at Lower Sampling Frequencies Setup Time, ns Hold Time, ns Sampling Frequency, MSPS MIN TYP MAX MIN TYP MAX 210 0.75 1.1 0.75 1.15 185 0.9 1.25 0.85 1.25 153 1.15 1.55 1.1 1.5 125 1.6 2 1.45 1.85 < 100 2 2 Enable LOW SPEED mode tPDI, ns 1 ≤ Fs ≤ 100 MIN TYP MAX Enable LOW SPEED mode 12.6 Table 2. CMOS Timings at Lower Sampling Frequencies Timings Specified With Respect to Input Clock Sampling Frequency, MSPS tSTART, ns Data Valid time, ns MIN TYP MAX MIN TYP MAX 210 2.5 1.7 2.7 190 1.9 2 3 170 0.9 2.7 3.7 150 6 3.6 4.6 Timings Specified With Respect to CLKOUT Sampling Frequency, MSPS Setup Time, ns Hold Time, ns MIN TYP MAX MIN TYP MAX 170 2.1 3.7 0.35 1.0 150 2.8 4.4 0.5 1.2 125 3.8 5.4 0.8 1.5 <100 5 1.2 Enable LOW SPEED mode tPDI, ns 1 ≤ Fs ≤ 100 MIN TYP MAX Enable LOW SPEED mode 9 Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Link(s): ADS62P49 / ADS62P29 ADS62P48 / ADS62P28 |
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