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CDCE925 データシート(PDF) 7 Page - Texas Instruments |
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CDCE925 データシート(HTML) 7 Page - Texas Instruments |
7 / 27 page CDCE925 CDCEL925 www.ti.com SCAS847F – JULY 2007 – REVISED MARCH 2010 DEVICE CHARACTERISTICS (continued) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT 1 PLL switching, Y2-to-Y3 50 70 tjit(cc) Cycle-to-cycle jitter (6) (7) ps 2 PLL switching, Y2-to-Y5 90 130 1 PLL switching, Y2-to-Y3 60 100 tjit(per) Peak-to-peak period jitter (7) ps 2 PLL switching, Y2-to-Y5 100 160 fOUT = 50 MHz; Y1-to-Y3 70 tsk(o) Output skew (8) ps fOUT = 50 MHz; Y2-to-Y5 150 odc Output duty cycle (9) fVCO = 100 MHz; Pdiv = 1 45% 55% CDCEL925 — LVCMOS PARAMETER for VDDOUT = 1.8 V – Mode VDDOUT = 1.7 V, IOH = –0.1 mA 1.6 VOH LVCMOS high-level output voltage VDDOUT = 1.7 V, IOH = –4 mA 1.4 V VDDOUT = 1.7 V, IOH = –8 mA 1.1 VDDOUT = 1.7 V, IOL = 0.1 mA 0.1 VOL LVCMOS low-level output voltage VDDOUT = 1.7 V, IOL = 4 mA 0.3 V VDDOUT = 1.7 V, IOL = 8 mA 0.6 tPLH, tPHL Propagation delay All PLL bypass 2.6 ns tr/tf Rise and fall time VDDOUT = 1.8 V (20%–80%) 0.7 ns 1 PLL switching, Y2-to-Y3 80 110 tjit(cc) Cycle-to-cycle jitter (6) (7) ps 2 PLL switching, Y2-to-Y5 130 200 1 PLL switching, Y2-to-Y3 100 130 tjit(per) Peak-to-peak period jitter (10) ps 2 PLL switching, Y2-to-Y5 150 220 fOUT = 50 MHz; Y1-to-Y3 50 tsk(o) Output skew (11) ps fOUT = 50 MHz; Y2-to-Y5 110 odc Output duty cycle (12) fVCO = 100 MHz; Pdiv = 1 45% 55% SDA/SCL PARAMETER VIK SCL and SDA input clamp voltage VDD = 1.7 V; II = –18 mA –1.2 V IIH SCL and SDA input current VI = VDD; VDD = 1.9 V ±10 mA VIH SDA/SCL input high voltage(13) 0.7 VDD V VIL SDA/SCL input low voltage(13) 0.3 VDD V VOL SDA low-level output voltage IOL = 3 mA VDD = 1.7 V 0.2 VDD V CI SCL/SDA Input capacitance VI = 0 V or VDD 3 10 pF (6) 10000 cycles. (7) Jitter depends on configuration. Jitter data is for input frequency = 27 MHz, fVCO = 135 MHz, fOUT = 27 MHz. fOUT = 3.072 MHz or input frequency = 27 MHz, fVCO = 108 MHz, fOUT = 27 MHz. fOUT = 16.384 MHz, fOUT = 25 MHz, fOUT = 74.25 MHz, fOUT = 48 MHz (8) The tsk(o) specification is only valid for equal loading of each bank of outputs, and the outputs are generated from the same divider, data sampled on rising edge (tr). (9) odc depends on output rise- and fall time (tr/tf); (10) Jitter depends on configuration. Jitter data is for input frequency = 27 MHz, fVCO = 135 MHz, fOUT = 27 MHz. fOUT = 3.072 MHz or input frequency = 27 MHz, fVCO = 108 MHz, fOUT = 27 MHz. fOUT = 16.384 MHz, fOUT = 25 MHz, fOUT = 74.25 MHz, fOUT = 48 MHz (11) The tsk(o) specification is only valid for equal loading of each bank of outputs, and the outputs are generated from the same divider, data sampled on rising edge (tr). (12) odc depends on output rise- and fall time (tr/tf); (13) SDA and SCL pins are 3.3 V tolerant. Copyright © 2007–2010, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): CDCE925 CDCEL925 |
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同様の説明 - CDCE925 |
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