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ASM2I9940LG-32-LR Datasheet(PDF) 6 Page - Alliance Semiconductor Corporation |
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ASM2I9940LG-32-LR Datasheet(HTML) 6 Page - Alliance Semiconductor Corporation |
6 / 13 page June 2005 ASM2I9940L rev 1.0 Low Voltage 1:18 Clock Distribution Chip 6 of 13 Notice: The information in this document is subject to change without notice. Table 9. DC Characteristics (T A = 0° to 70°C, VCCI = 2.5V ± 5%, VCCO = 2.5V ± 5%) Symbol Characteristic Min Typ Max Unit Condition VIH Input HIGH Voltage CMOS_CLK 2.4 VCCI V VIL Input LOW Voltage CMOS_CLK 0.8 V VPP Peak–to–Peak Input Voltage PECL_CLK 500 1000 mV VCMR Common Mode Range PECL_CLK VCC–1.0 VCC–0.6 V VOH Output HIGH Voltage 1.8 V IOH = –20mA VOL Output LOW Voltage 0.5 V IOH = 20mA IIN Input Current ±200 µA CIN Input Capacitance 4.0 pF Cpd Power Dissipation Capacitance 10 pF per output ZOUT Output Impedance 18 23 28 Ω ICC Maximum Quiescent Supply Current 0.5 1.0 mA Table 10. AC Characteristics (T A = 0° to 70°C, VCCI = 2.5V ± 5%, VCCO = 2.5V ± 5%) Symbol Characteristic Min Typ Max Unit Condition Fmax Maximum Input Frequency 200 MHz tPLH Propagation Delay PECL_CLK < 150MHz CMOS_CLK < 150MHz 2.6 2.3 4.0 3.1 5.2 4.0 nS Note 1. tPLH Propagation Delay PECL_CLK > 150MHz CMOS_CLK > 150MHz 2.8 2.3 3.8 3.1 5.0 4.0 nS tsk(o) Output-to-output Skew Within one bank PECL_CLK CMOS_CLK 200 200 pS Note 1. tsk(pp) Part–to–Part Skew PECL_CLK < 150MHz CMOS_CLK < 150MHz 2.6 1.7 nS Notes 1,2 tsk(pp) Part–to–Part Skew PECL_CLK > 150MHz CMOS_CLK > 150MHz 2.2 1.7 nS Notes 1,2 tsk(pp) Part–to–Part Skew PECL_CLK CMOS_CLK 1.2 1.0 nS Notes 1,3 DC Output Duty Cycle fCLK < 134 MHz fCLK <250 MHz 45 40 50 50 55 60 % % Input DC = 50% Input DC = 50% tr, tf Output Rise/Fall Time 0.3 1.2 nS 0.5 – 1.8 V Note: 1. Tested using standard input levels, Production tested @ 150MHz. 2. Across temperature and voltage ranges, includes output skew. 3. For a specific temperature and voltage, includes output skew. |
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