PI6C557-06 1:4 HCSL PCIe® Buffer Features Description ÎÎ1:4 HCSL clock buffer The PI6C557-06 is a high performance PCIe® buffer with four HCSL outputs compliant to PCIe® Gen 1, 2 and 3 standards. The device has selectable reference inputs to provide flexibility in system design. ÎÎPCIe® Gen 1, 2 and 3 compliant ÎÎSelectable reference inputs ÎÎCycle-to-Cycle Jitter <70ps ÎÎOutput-to-Output Skew <35ps ÎÎ3.3V supply voltage ÎÎTSSOP-20 package ÎÎIndustrial Temperature Applications ÎÎServers ÎÎEmbedded computing systems ÎÎNetworking systems Block Diagram OE SRCIN1 SRCIN1# SRCIN2 SRCIN2# Pin Configuration CLK0 CLK0# CLK1 CLK1# CLK2 CLK2# CLK3 CLK3# REFSEL PD# All trademarks are property of their respective owners. 11-0051 1 REFSEL 1 20 CLK0 VDDIN 2 19 CLK0# SRCIN1 3 18 CLK1 SRCIN1# 4 17 CLK1# PD# 5 16 GND SRCIN2 6 15 VDDOUT SRCIN2# 7 14 CLK2 OE 8 13 CLK2# GND 9 12 CLK3 IRef 10 11 CLK3# www.pericom.com P-0.1 09/15/10 PI6C557-06 1:4 HCSL PCIe Buffer Function Table REFSEL INPUT Selected 0 SRCIN2 / SRCIN2# 1 SRCIN1 / SRCIN1# Pin Description Pin # Pin Type Description 1 REFSEL Input Internal pull up. “0” select SRCIN2/2#; “1” selects SRCIN1/1#. 2 VDDIN Power 3.3V for input buffer 3, 4 SRCIN1, SRCIN1# Input HCSL Input 1 5 PD# Input Power Down mode. “0” is “power down”, “1” is normal operation. Internal pull up. Outputs are in tri-state when power down. 6, 7 SRCIN2, SRCIN2# Input HCSL input 2 8 OE Input Output enable for all outputs. “0” is “disabled” as tri-stated, “1” is enable output mode. Internal pull up. 9,16 GND Power Ground 10 IRef Input External resistor connection for internal current reference 11,12 CKL3#, CLK3 Output HCSL output 13,14 CKL2#, CLK2 Output HCSL output 15 VDDOUT Power 3.3V for outputs 17, 18 CKL1#, CLK1 Output HCSL output 19, 20 CKL0#, CLK0 Output HCSL output All trademarks are property of their respective owners. 11-0051 2 www.pericom.com P-0.1 09/15/10 PI6C557-06 1:4 HCSL PCIe Buffer Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Storage Temperature........................................- 65°C to +155°C Ambient Temperature with Power Applied........-40°C to +85°C 3.3V Analog Supply Voltage . ...............................- 0.5 to +4.6V ESD Protection(HBM)..................................................... 2000V Recommended Operating Condition Symbol Description Test Conditions Min Type Max Unit VDD Power supply - 3.135 - 3.465 V 50W, 2pF - 41 HCSL Load (See page 6) - - 90 mA - - 15 mA 0.3 mA +85 ºC IDD Total Power Supply Current IDD_Output tri-stated Total power supply current with Outputs are tri-stated OE is “0” Idd power down Total power supply current in power down mode PD# = “0”, no load TA Operating temperature Industrial temperature mA (1) -40 Note: 1. This is for 2 outputs. Total Current = ICORE + 2x IOUTPUT = 13 + 14 x 2 = 41mA All trademarks are property of their respective owners. 11-0051 3 www.pericom.com P-0.1 09/15/10 PI6C557-06 1:4 HCSL PCIe Buffer LVCMOS DC Electrical Characteristics (Over Operating Conditions) Symbol Parameter Conditions Min. Typ. Max. Unit VIH Input High Voltage - 2 - VDD+0.3 V VIL Input Low Voltage - -0.3 - 0.8 V IIH Input High Current VIN = VDD - - 45 µA IIL Input Low Current VIN = 0V -45 - - µA R PU Internal pull up resistance REFSEL, OE, PD# - 120 - kOhm Min. Typ. Max. Unit - - 5 µA 45 µA Differential DC Input Characteristics (Over Operating Conditions) Symbol IIH IIL Parameter Input High Current, INInput High Current, IN+ Input Low Current, INInput Low Current, IN+ Conditions VIN = VDD=3.465V VIN = 0V VIH Input High Voltage VIL Input Low Voltage VID Input differential voltage Single-ended swing LVDS VIO Input Differential offset voltage Cross point Single-ended swing HCSL -45 - - µA -5 - - µA 660 700 850 mV -150 0 250 350 450 mV 1.125 1.25 1.375 mV Min. Typ. Max. Unit mV HCSL DC Electrical Characteristics (Over Operating Conditions) Symbol Parameter Conditions VOH Output High Voltage - 660 - 850 mV VOL Output Low Voltage - - - 150 mV VCROSS Absolute Crossing Point Voltages - 250 - 550 mV ΔVCROSS Total variation of VCROSS overall edges - - - 140 mV IOH Output High Current With 475-Ohm resistor connected between IREF pin and GND - 14 - mA All trademarks are property of their respective owners. 11-0051 4 www.pericom.com P-0.1 09/15/10 PI6C557-06 1:4 HCSL PCIe Buffer HCSL AC Electrical Characteristics (Over Operating Conditions) Symbol Parameter Conditions Fin Input Frequency - FOUT Output Frequency HCSL termination Tr /Tf Output Rise/Fall time Between 0.175V and 0.525V(2) ΔTr /ΔTf Rise and Fall Time Variation(2) TPD Propagation delay Tskew Typ. Max. - - 200 - - 175 - 700 ps - - - 125 ps Input to output measured at the mid point level - 3.0 4.5 ns Output-to-Output Skew(3) - - - 35 ps TDC Output Duty Cycle - 47 - 53 % JC Cycle to cycle jitter (3) Differential waveform - 50 70 ps Additive RMS jitter (4) 100MHz HCSL from 12 kHz to 20MHz - 330 - fs - 1 ps JAdd (3) Additive RMS jitter for PCIe 2.0 JPhase RMS phase jitter for PCIe 3.0 Min. <0 200 (1) Unit MHz MHz High Frequency - 0.4 1 ps Low Frequency - 0.6 3 ps 50mVp-p input sine wave 100kHz to 600kHz(2) - -53 - dBc PSR Power Supply Noise Rejection TOEN OE enable time 100 ns TOEF OE disable time 100 ns Notes: 1. For LVDS Termination , the maximum frequency is 100MHz 2. Measurement is taken from Single Ended waveform. 3. Measurement is taken from Differential waveform. 4. Additive jitter is calculated from input and output RMS phase jitter. (Ja = √(output jitter)2 – (input jitter)2 All trademarks are property of their respective owners. 11-0051 5 www.pericom.com P-0.1 09/15/10 PI6C557-06 1:4 HCSL PCIe Buffer HCSL output buffer characteristics VDD (3.3V ± 5%) Slope ~ 1/Rs RO IOUT ROS Iout 0V VOUT = 0.85V max 0.85V HCSL output buffer characteristics Symbol Minimum Maximum RO 3000Ω N/A ROS unspecified unspecified VOUT N/A 850mV All trademarks are property of their respective owners. 11-0051 6 www.pericom.com P-0.1 09/15/10 PI6C557-06 1:4 HCSL PCIe Buffer Configuration Rs 33Ω 5% PI6C557-06 475Ω 1% Clock Rs 33Ω 5% Clock# Rp 49.9Ω 1% Rp 49.9Ω 1% 2pF 5% 2pF 5% Test Load Board Termination for HCSL output PI6C557-06 475Ω 1% Clock Ro 100Ω 1% 100Ω Clock# RT 150Ω 1% RT 150Ω 1% Test Load Board Termination for LVDS output All trademarks are property of their respective owners. 11-0051 7 www.pericom.com P-0.1 09/15/10 PI6C557-06 1:4 HCSL PCIe Buffer Packaging Mechanical: 20-pin TSSOP (L) DOCUMENT CONTROL NO. PD - 1311 20 REVISION: E DATE: 03/09/05 .169 .177 1 .252 .260 6.4 6.6 4.3 4.5 .004 0.09 .008 0.20 1 .047 1.20 Max .007 .012 0.19 0.30 .0256 BSC 0.65 0.45 0.75 SEATING PLANE .018 .030 .238 .269 6.1 6.7 .002 0.05 .006 0.15 Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2336 • www.pericom.com Note: 1. Package Outline Exclusive of Mold Flash and Metal Burr 2. Controlling dimentions in millimeters 3. Ref: JEDEC MO-153F/AC DESCRIPTION: 20-Pin, 173-Mil Wide, TSSOP PACKAGE CODE: L Ordering Information(1-3) Ordering Code Package Code Package Type Operating Temperature PI6C557-06LIE L Pb-free & Green, 20-pin 173-mil TSSOP -40°C to 85°C PI6C557-06LE L Pb-free & Green, 20-pin 173-mil TSSOP 0°C to 70°C Notes: 1. Thermal characteristics and package top marking information can be found at http://www.pericom.com/packaging/ 2. E = lead-free and green packaging 3. Adding an X suffix = tape/reel Pericom Semiconductor Corporation • 1-800-435-2336 All trademarks are property of their respective owners. 11-0051 8 www.pericom.com P-0.1 09/15/10