7 / 25 page  C9827H High Performance Pentium® 4 Clock Synthesizer Cypress Semiconductor Corporation http://www.cypress.com Document#: 38-07106 Rev. *A 12/26/2002 Page 7 of 25 Approved Product AC Parameters 66 MHz 100 MHz 133 MHz 200 MHz Symbol Parameter Min Max Min Max Min Max Min Max Units Notes TDC Xin Duty Cycle 47.5 52.5 47.5 52.5 47.5 52.5 47.5 52.5 % 1, 11, 14 TPeriod Xin period 69.841 71.0 69.841 71.0 69.841 71.0 69.841 71.0 nS 1, 2, 4, 11 VHIGH Xin High Voltage .7Vdd Vdd .7Vdd Vdd .7Vdd Vdd .7Vdd Vdd Volts VLOW Xin Low Voltage 0 .3Vdd 0 .3Vdd 0 .3Vdd 0 .3Vdd Volts Tr / Tf Xin rise and fall times - 10.0 - 10.0 - 10.0 - 10.0 nS 13 TCCJ Xin Cycle to Cycle Jitter - 500 - 500 - 500 - 500 pS 2, 5, 11 CPU at 0.7 Volts Timing TSKEW Any CPU to CPU clock Skew - 100 - 100 - 100 - 100 pS 2, 5, 17 TCCJ CPU Cycle to Cycle Jitter - 150 - 150 - 150 150 pS 2, 17, 22 TDC CPU and CPU# Duty Cycle 45 55 45 55 45 55 45 55 % 5, 17, 22 TPeriod CPU and CPU# period 14.85 15.3 9.85 10.2 7.35 7.65 4.85 5.1 nS 5, 17, 22 Tr / Tf CPU and CPU# rise and fall times 175 700 175 700 175 700 175 700 ps 5, 6, 25 Rise.Fall Matching - 20% - 20% 20% - 20% - 6, 21, 22 DeltaTr Rise Time Variation - 125 - 125 - 125 125 ps 6, 22 DeltaTf Fall Time Variation - 125 - 125 - 125 - 125 ps 6, 22 Vcross crossing point voltage at 0.7 V swing 280 430 280 430 280 430 280 430 mV 5, 22 CPU at 1.0 Volts Timing TSKEW Any CPU to any CPU clock Skew - 100 - 100 - 100 - 100 pS 2, 5, 17 TCCJ CPU Cycle to Cycle Jitter - 150 - 150 - 150 150 pS 2, 17 TDC CPU and CPU# Duty Cycle 45 55 45 55 45 55 45 55 % 5, 17 TPeriod CPU and CPU# period 14.85 15.3 9.85 10.2 7.35 7.65 4.85 5.1 nS 5, 17 Differential Tr / Tf CPU and CPU# rise and fall times 175 467 175 467 175 467 175 467 ps 5, 25 SE- DeltaSlew Absolute Single- ended rise/fall waveform symmetry 325 325 325 325 ps 7, 26 Vcross Cross point at 1.0 Volt swing 510 760 510 760 510 760 510 760 mV 26 TDC 3V66 Duty Cycle 45 55 45 55 45 55 45 55 % 2, 4 TPeriod 3V66 period 15.0 15.3 15.0 15.3 15.0 15.3 15.0 15.3 nS 1, 2, 4 THIGH 3V66 high time 4.95 - 4.95 - 4.95 - 4.95 - nS 19 TLOW 3V66 low time 4.55 - 4.55 - 4.55 - 4.55 - nS 20 Tr / Tf 3V66 rise and fall times 0.5 2.0 0.5 2.0 0.5 2.0 0.5 2.0 nS 3 Tskew Unbuffered 3V66 to 3V66 clock skew - 500 - 500 - 500 - 500 pS 2, 4 Tskew Buffered 3V66 to 3V66 clock skew - 250 - 250 - 250 - 250 pS 2, 4 TCCJ DRCG Cycle to Cycle Jitter - 250 - 250 - 250 - 250 pS 2, 4 |
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