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CDCVF855 датащи(PDF) 4 Page - Texas Instruments |
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CDCVF855 датащи(HTML) 4 Page - Texas Instruments |
4 / 16 page www.ti.com RECOMMENDED OPERATING CONDITIONS ELECTRICAL CHARACTERISTICS CDCVF855 SCAS839A – APRIL 2007 – REVISED MAY 2007 MIN NOM MAX UNIT VDDQ PC1600 – PC3200 2.3 2.7 Supply voltage V AVDD VDDQ – 0.12 2.7 CLK, CLK, FBIN, FBIN VDDQ/2 – 0.18 VIL Low-level input voltage V PWRDWN –0.3 0.7 CLK, CLK, FBIN, FBIN VDDQ/2 + 0.18 VIH High-level input voltage V PWRDWN 1.7 VDDQ + 0.3 DC input signal voltage(1) –0.3 VDDQ + 0.3 V VDDQ = 2.3 V – 2.7V 0.36 VDDQ + 0.6 DC CLK, FBIN VDDQ = 2.425 V – 2.7 V 0.25 VDDQ + 0.6 VID Differential input signal voltage(2) V VDDQ = 2.3 V – 2.7 V 0.7 VDDQ + 0.6 AC CLK, FBIN VDDQ = 2.425 V – 2.7 V 0.49 VDDQ + 0.6 Input differential pair cross VIX VDDQ/2 – 0.2 VDDQ/2 + 0.2 V voltage(3)(4) IOH High-level output current –12 mA IOL Low-level output current 12 mA SR Input slew rate 1 4 V/ns TA Operating free-air temperature –40 85 °C (1) The unused inputs must be held high or low to prevent them from floating. (2) The dc input signal voltage specifies the allowable dc execution of the differential input. (3) The differential input signal voltage specifies the differential voltage |VTR – VCP| required for switching, where VTR is the true input level and VCP is the complementary input level. (4) The differential cross-point voltage is expected to track variations of VCC and is the voltage at which the differential signals must cross. over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP (1) MAX UNIT VIK Input voltage, all inputs VDDQ = 2.3 V, II = –18 mA –1.2 V VDDQ = min to max, IOH = –1 mA VDDQ – 0.1 VOH High-level output voltage V VDDQ = 2.3 V, IOH = –12 mA 1.7 VDDQ = min to max, IOL = 1 mA 0.1 VOL Low-level output voltage V VDDQ = 2.3 V, IOL = 12 mA 0.6 VOD Output voltage swing (2) 1.1 VDDQ – 0.4 V Differential outputs are terminated with 120 Ω, Output differential cross-voltage CL = 14 pF (See Figure 3) VOX VDDQ/2 – 0.1 VDDQ/2 VDDQ/2 + 0.1 V (3) II Input current VDDQ = 2.7 V, VI = 0 V to 2.7 V ±10 µA High-impedance-state output IOZ VDDQ = 2.7 V, VO = VDDQ or GND ±10 µA current Power-down current on VDDQ + CLK and CLK = 0 MHz; PWRDWN = Low; Σ of IDDPD 20 100 µA AVDD IDD and AIDD fO = 170 MHz 6 8 AIDD Supply current on AVDD mA fO = 200 MHz 8 10 CI Input capacitance VDDQ = 2.5 V, VI = VDDQ or GND 2 2.5 3.5 pF (1) All typical values are at a nominal VDDQ. (2) The differential output signal voltage specifies the differential voltage |VTR – VCP|, where VTR is the true output level and VCP is the complementary output level. (3) The differential cross-point voltage tracks variations of VDDQ and is the voltage at which the differential signals must cross. 4 Submit Documentation Feedback |
Аналогичный номер детали - CDCVF855_16 |
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Аналогичное описание - CDCVF855_16 |
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