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PCS2I99446G-32-LR Datasheet(PDF) 5 Page - PulseCore Semiconductor |
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PCS2I99446G-32-LR Datasheet(HTML) 5 Page - PulseCore Semiconductor |
5 / 14 page September 2006 PCS2I99446 rev 0.5 2.5V and 3.3V LVCMOS Clock Distribution Buffer 5 of 14 Notice: The information in this document is subject to change without notice. Table 7: AC CHARACTERISTICS (V CC = VCCA = VCCB = VCCC = 3.3V ±5%, TA = –40°C to +85°C) 1 Symbol Characteristics Min Typ Max Unit Condition fref Input Frequency 0 250 2 MHz ÷1 output 0 250 2 MHz FSELx=0 fMAX Maximum Output Frequency ÷2 output 0 125 MHz FSELx=1 tP, REF Reference Input Pulse Width 1.4 nS tr, tf CCLK Input Rise/Fall Time 1.0 3 nS 0.8 to 2.0V tPLH CCLK0,1 to any Q 2.2 2.8 4.45 nS tPHL Propagation delay CCLK0,1 to any Q 2.2 2.8 4.2 nS tPLZ, HZ Output Disable Time 10 nS tPZL, LZ Output Enable Time 10 nS Within one bank 150 pS Any output Bank, Same output divider 200 pS tsk(O) Output-to-output Skew Any output, Any output divider 350 pS tsk(PP) Device-to-device Skew 2.25 nS tSK(P) Output pulse skew 4 200 pS ÷1 output 47 50 53 % DCREF = 50% DCQ Output Duty Cycle ÷2 output 45 50 55 % DCREF = 25%-75% tr, tf Output Rise/Fall Time 0.1 1.0 nS 0.55 to 2.4V Note: 1 AC characteristics apply for parallel output termination of 50Ω to VTT 2 The PCS2I99446 is functional up to an input and output clock frequency of 350MHz and is characterized up to 250MHz. 3 Violation of the 1.0nS maximum input rise and fall time limit will affect the device propagation delay, device-to-device skew, reference input pulse width, output duty cycle and maximum frequency specifications. 4 Output pulse skew is the absolute difference of the propagation delay times | tpLH - tpHL |. Table 8: DC CHARACTERISTICS (V CC = VCCA = VCCB = VCCC = 2.5V ±5%, TA = –40°C to +85°C) Symbol Characteristics Min Typ Max Unit Condition VIH Input High Voltage 1.7 VCC + 0.3 V LVCMOS VIL Input Low Voltage -0.3 0.7 V LVCMOS VOH Output High Voltage 1.8 V IOH=-15 mA 1 VOL Output Low Voltage 0.6 V IOL= 15 mA ZOUT Output Impedance 17 - 20 2 Ω IIN Input Current 2 ±200 µA VIN=GND or VIN=VCC ICCQ 3 Maximum Quiescent Supply Current 2.0 mA All VCC Pins Note: 1 The PCS2I99446 is capable of driving 50Ω transmission lines on the incident edge. Each output drives one 50Ω parallel terminated transmission line to a termination voltage of VTT. Alternatively, the device drives up to two 50Ω series terminated transmission lines per output. 2 Input pull-up / pull-down resistors influence input current. 3 ICCQ is the DC current consumption of the device with all outputs open and the input in its default state or open. |
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