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TS2DDR2811 Arkusz danych(PDF) 4 Page - Texas Instruments |
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TS2DDR2811 Arkusz danych(HTML) 4 Page - Texas Instruments |
4 / 14 page TS2DDR2811 SCDS294 – DECEMBER 2009 www.ti.com ELECTRICAL CHARACTERISTICS for 10/100 Base-T Ethernet switching over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) PARAMETER TEST CONDITIONS(1) MIN TYP(2) MAX UNIT VIK SEL VCC = 3.6 V, IIN = –18 mA –0.7 –1.2 V IIH SEL VCC = 3.6 V, VIN = VCC ±1 μA IIL SEL VCC = 3.6 V, VIN = GND ±1 μA ICC VCC = 3.6 V, II/O = 0, Switch ON or OFF 250 500 μA CIN SEL f = 1 MHz, VIN = 0 2 2.5 pF COFF B port VI = 0, f = 1 MHz, Outputs open, Switch OFF 2.5 4 pF CON VI = 0, f = 1 MHz, Outputs open, Switch ON 8 pF rON VCC = 3 V, 1.25 V ≤ VI ≤ VCC, IO = –10 mA to –30 mA 4 6 Ω rON(flat) (3) VCC = 3 V, VI = 1.25 V and VCC, IO = –10 mA to –30 mA 0.5 Ω ΔrON (4) VCC = 3 V, 1.25 V ≤ VI ≤ VCC, IO = –10 mA to –30 mA 0.4 1 Ω (1) VI, VO, II, and IO refer to I/O pins. VIN refers to the control inputs. (2) All typical values are at VCC = 3.3 V (unless otherwise noted), TA = 25°C. (3) rON(flat) is the difference of rON in a given channel at specified voltages. (4) ΔrON is the difference of rON from center (A4, A5) ports to any other port. SWITCHING CHARACTERISTICS over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V, RL = 200 Ω, CL = 10 pF (unless otherwise noted) (see Figure 5 and Figure 6) FROM TO PARAMETER MIN TYP(1) MAX UNIT (INPUT) (OUTPUT) tpd (2) A or B B or A 40 ps tPZH, tPZL SEL A or B 0.5 15 ns tPHZ, tPLZ SEL A or B 0.9 9 ns tsk(o) (3) A or B B or A 50 100 ps tsk(p) (4) 50 150 ps (1) All typical values are at VCC = 3.3 V (unless otherwise noted), TA = 25°C. (2) The propagation delay is the calculated RC time constant of the typical ON-state resistance of the switch and the specified load capacitance when driven by an ideal voltage source (zero output impedance). (3) Output skew between center port (A4 to A5) to any other port (4) Skew between opposite transitions of the same output in a given device |tPHL – tPLH| DYNAMIC CHARACTERISTICS over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) PARAMETER TEST CONDITIONS TYP(1) UNIT XTALK RL = 100 Ω, f = 250 MHz, See Figure 8 –37 dB OIRR RL = 100 Ω, f = 250 MHz, See Figure 9 –37 dB BW RL = 50 Ω, See Figure 7 1100 MHz (1) All typical values are at VCC = 3.3 V (unless otherwise noted), TA = 25°C. 4 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): TS2DDR2811 |
Podobny numer części - TS2DDR2811_14 |
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Podobny opis - TS2DDR2811_14 |
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