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EM47EM3288MBA Datasheet(PDF) 11 Page - Eorex Corporation |
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EM47EM3288MBA Datasheet(HTML) 11 Page - Eorex Corporation |
11 / 39 page EM47EM3288MBA Apr. 2014 11/39 www.eorex.com AC and DC Output Measurement Levels Symbol Parameter Specification Units Note VOH(DC) DC output high measurement level (for IV curve linearity) 0.8*VDDQ V VOM(DC) DC output middle measurement level (for IV curve linearity) 0.5*VDDQ V VOL(DC) DC output low measurement level (for IV curve linearity) 0.2*VDDQ V VOH(AC) AC output high measurement level (for output slew rate) VTT+0.1*VDDQ V 1 VOL(AC) AC output low measurement level (for output slew rate) VTT-0.1*VDDQ V 1 VOHdiff(DC) AC differential output high measurement level (for output slew rate) 0.2*VDDQ V 2 VOLdiff(DC) AC differential output low measurement level (for output slew rate) -0.2*VDDQ V 2 Notes1. The swing of ±0.1 × VDDQ is based on approximately 50% of the static single-ended output high or low swi ng with a driver impedance of 34Ω and an effective test load of 25Ω to VTT = VDDQ/2 at each of the differential outputs. Notes2. The swing of ±0.2 × VDDQ is based on approximately 50% of the static single-ended output high or low swing with a driver impeda nce of 34Ω and an effective test load of 25Ω to VTT = VDDQ/2 at each of the differential outputs. DQS Output Crossing Voltage - VOX (DDR3L-1600 or Higher Speed Bin) Symbol Parameters DQS, /DQS differential slew rate Unit 5V/ns 6V/ns 7V/ns 8V/ns 9V/ns 10V/ns 11V/ns 12V/ns VOX (AC) max. Deviation of DQS, /DQS output cross point voltage from 0.5*VDDQ +100 +120 +140 +160 +180 +200 +200 +200 mV VOX (AC) min. -100 -120 -140 -160 -180 -200 -200 -200 mV DQS Output Crossing Voltage - VOX (DDR3L-1333 or Lower Speed Bin) Symbol Parameters DQS, /DQS differential slew rate Unit 5V/ns 6V/ns 7V/ns 8V/ns 9V/ns 10V/ns 11V/ns 12V/ns VOX (AC) max. Deviation of DQS, /DQS output cross point voltage from 0.5*VDDQ +125 +150 +175 +200 +225 +225 +225 +225 mV VOX (AC) min. -125 -150 -175 -200 -225 -225 -225 -225 mV Notes1. Measured using an effective test load of 25Ω to 0.5*V DDQ at each of the differential outputs. Notes2. For a differential slew rate in between the listed values, the VOX value may be obtained by linear interpolation. Notes3. The DQS, /DQS pins under test are not required to be able to drive each of the slew rates listed in the table; the pins under test will provide one VOX value when tested with specified test condition. The DQS and /DQS differential slew rate when measuring VOX determines which VOX limits to use. |
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