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DAC3484 Datasheet(PDF) 9 Page - Texas Instruments |
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DAC3484 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 82 page DAC3484 www.ti.com SLAS749A – MARCH 2011 – REVISED JULY 2011 ELECTRICAL CHARACTERISTICS – DIGITAL SPECIFICATIONS over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT LVDS INPUTS: D[15:0]P/N, DATACLKP/N, FRAMEP/N, SYNCP/N, PARITYP/N(1) Logic high differential input VA,B+ 200 mV voltage threshold Logic low differential input VA,B– –200 mV voltage threshold VCOM Input Common Mode 1.0 1.2 V ZT Internal termination 85 110 135 Ω CL LVDS Input capacitance 2 pF Interleaved LVDS data fINTERL 1250 MSPS transfer rate fDATA Input data rate 312.5 MSPS CLOCK INPUT (DACCLKP/N) Duty cycle 40% 60% Differential voltage(2) 0.4 1.0 V DACCLKP/N Input 1250 MHz Frequency OUTPUT STROBE (OSTRP/N) fDACCLK fOSTR = fDACCLK / (n x 8 x Interp) where n is any positive integer, / fOSTR Frequency MHz fDACCLK is DACCLK frequency in MHz (8 x interp) Duty cycle 50% Differential voltage 0.4 1.0 V CMOS INTERFACE: ALARM, SDO, SDIO, SCLK, SDENB, SLEEP, RESETB, TXENABLE VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V IIH High-level input current -40 40 µA IIL Low-level input current -40 40 µA CI CMOS Input capacitance 2 pF IOVDD – Iload = –100 μA V 0.2 VOH ALARM, SDO, SDIO Iload = –2 mA 0.8 x IOVDD V Iload = 100 μA 0.2 V VOL ALARM, SDO, SDIO Iload = 2 mA 0.5 V (1) See LVDS INPUTS section for terminology. (2) Driving the clock input with a differential voltage lower than 1 V may result in degraded performance. Copyright © 2011, Texas Instruments Incorporated 9 |
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