PI6C20400ALEX Pericom Semiconductor, PI6C20400ALEX Datasheet
PI6C20400ALEX
Specifications of PI6C20400ALEX
Available stocks
Related parts for PI6C20400ALEX
PI6C20400ALEX Summary of contents
Page 1
Features • Phase jitter filter for PCIe® 2.0 application • Four Pairs of Differential Clocks • Low skew < 50ps • Low jitter < 50ps cycle-to-cycle • < additive RMS phase jitter • Output Enable for all outputs • Outputs tristate control via SMBus • Programmable PLL Bandwidth • 100 MHz PLL Mode operation • 100 - 400 MHz Bypass Mode operation • 3.3V Operation • Packaging (Pb-free and Green): →28-Pin SSOP (H28) →28-Pin TSSOP (L28) Block Diagram OE_INV OE_0 & OE_3 Output SRC_STOP# Control PWRDWN# SMBus SCLK Controller ...
Page 2
Pin Descriptions Pin Name Type SRC & SRC# Input OE_0 & OE_3 Input OE_INV Input OUT[0:3] & OUT[0:3]# Output PLL/BYPASS# Input SCLK Input SDA I/O IREF Input SRC_STOP# Input PLL_BW# Input PWRDWN# Input V Power DD VSS Ground VSS_A Ground VDD_A Power Serial Data Interface ...
Page 3
Data Byte 0: Control Register Bit Descriptions Outputs Mode Divide Normal PLL/BYPASS Fanout 1 = PLL PLL Bandwidth High Bandwidth Low Bandwidth 3 Reserved 4 Reserved 5 Reserved SRC_STOP Driven when stopped 1 = Tristate PWRDWN Driven when stopped 1 = Tristate Data Byte 1: Control Register Bit Descriptions ...
Page 4
Data Byte 2: Control Register Bit Descriptions 0 Reserved 1 Allow control of OUTPUTS with assertion of SRC_STOP Free running Stopped with SRC_Stop# 3 Reserved 4 Reserved 5 Allow control of OUTPUTS with assertion of SRC_STOP Free running Stopped with SRC_Stop# 7 Reserved Data Byte 3: Control Register Bit Descriptions Reserved 4 ...
Page 5
Functionality PWRDWN# OUT 1 Normal 0 I × Float REF Power Down (PWRDWN# assertion) PWRDWN# OUT OUT# Power Down (PWRDWN# De-assertion) PWRDWN# OUT OUT# 10-0181 1:4 Clock Driver for Intel PCIe® Chipsets OUT# SRC_Stop# Normal 1 Low 0 Figure 1. Power ...
Page 6
Current-mode output buffer characteristics of OUT[0:3], OUT[0:3 (3.3V ± 5 Iout V = 0.85V max OUT Figure 9. Simplified diagram of current-mode output buffer Differential Clock Buffer characteristics Symbol OUT Current ...
Page 7
Absolute Maximum Ratings (Over operating free-air temperature range) Symbol V 3.3V Core Supply Voltage DD_A V 3.3V I/O Supply Voltage DD V Input High Voltage IH V Input Low Voltage IL Ts Storage Temperature V ESD Protection ESD Note: 1. Stress beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. DC Electrical Characteristics Symbol Parameters V 3.3V Core Supply Voltage DD_A V 3.3V I/O Supply Voltage DD V 3.3V Input High Voltage IH V ...
Page 8
AC Switching Characteristics Symbol PLL Mode F IN Bypass Mode Rise and Fall Time (measured between 0.175V to 0.525V) rise fall DT / rise Rise and Fall Time Variation DT fall PLL Mode T pd Non-PLL Mode T Cycle – Cycle Jitter jitter V Voltage High including overshoot HIGH V Voltage Low including undershoot LOW V Absolute crossing point voltages cross DV Total Variation of Vcross over all edges cross T ...
Page 9
Packaging Mechanical: 28-Pin SSOP (H) 08-0143 10-0181 1:4 Clock Driver for Intel PCIe® Chipsets 28-Pin, 209-Mil Wide, SSOP H28 ...
Page 10
... Ordering Code PI6C20400AHE PI6C20400ALE Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging Pb-free and Green 3. Adding an X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 10-0181 ® ® PCIe , and the PCI EXPRESS design mark are trademarks of PCI-SIG 1:4 Clock Driver for Intel PCIe® Chipsets ...