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ICS557-06 Datasheet(PDF) 8 Page - Integrated Circuit Systems |
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ICS557-06 Datasheet(HTML) 8 Page - Integrated Circuit Systems |
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8 / 10 page ![]() MDS 557-06 C 8 Revision 010306 In te gr ated Circuit Systems ● 525 Ra ce Street, San Jose, CA 9512 6 ● tel (4 08) 297-1 201 ● www.icst.com ICS557-06 One to Four HCSL Clock Buffer AC Electrical Characteristics - CLKOUTA/CLKOUTB Unless stated otherwise, VDD=3.3 V ±5%, Ambient Temperature 0 to +70 °C 1 Test setup is R L=50 ohms with 2 pF, Rr = 475Ω (1%). 2 Measurement taken from a single-ended waveform. 3 Measurement taken from a differential waveform. 4 Measured at the crossing point where instantaneous voltages of both CLKOUT and CLKOUT are equal. 5 CLKOUT pins are tri-stated when OE is Low asserted. CLKOUT is driven differential when OE is High unless its PD = low. Parameter Symbol Conditions Min. Typ. Max. Units Input Frequency 200 MHz Output Frequency HCSL termination 200 MHz LVDS termination 100 Input High Voltage1,2 VIH HCSL 660 700 850 mV Input Low Voltage1,2 VIL HCSL -150 0 mV Differential Input Voltages (VID) LVDS 250 350 450 mV Input Offset Voltage (VIS) LVDS 1.125 1.25 1.375 V Output High Voltage1,2 VOH HCSL 660 700 850 mV Output Low Voltage1,2 VOL HCSL -150 0 mV Crossing Point Voltage1,2 Absolute 250 350 550 mV Crossing Point Voltage1,2,4 Variation over all edges 140 mV Jitter, Cycle-to-Cycle1,3 100 ps Rise Time1,2 tOR From 0.175 V to 0.525 V 175 332 700 ps Fall Time1,2 tOF From 0.525 V to 0.175 V 175 344 700 ps Rise/Fall Time Variation1,2 125 ps Skew between Outputs Measured at crossing point 50 ps Duty Cycle1,3 45 55 % Output Enable Time5 All outputs 10 us Output Disable Time5 All outputs 10 us Stabilization Time tSTABLE From power-up VDD=3.3 V 3.0 ms Spread Change Time tSPREAD Settling period after spread change 3.0 ms Input to Output Delay Input differential clock to output differential clock delay measured at mid point of input levels to mid pint of output levels 3ns |
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