A product Line of bP Diodes Incorporated Lead-free GreenPI6CG334013.3V Very-Low-Power 4-Output PCIe Clock Generator With On-Chip TerminationFeaturesDescription ÎÎ3.3V Supply Voltage The PI6CG33401 is a 4-output very-low-power PCIe Gen1/Gen2/ ÎÎCrystal/CMOS Input: 25MHz Gen3/Gen4/Gen 5 clock generator. It uses 25MHz crystal or CMOS ÎÎFour Differential Low Power HCSL Outputs with On-Chip reference as an input to generate the 100MHz low-power differ- Termination ential HCSL outputs with on-chip terminations. The on-chip ter- ÎÎDefault ZOUT = 100Ω mination can save 16 external resistors and make layout easier. ÎÎIndividual Output Enable An additional buffered reference output is provided to serve as a ÎÎReference CMOS Output low-noise reference for other circuitry. ÎÎProgrammable Slew Rate and Output Amplitude for Each It uses Diodes' proprietary PLL design to achieve very-low Output jitter that meets PCIe Gen1/Gen2/Gen3/Gen4/Gen5 require- ÎÎDifferential Outputs Blocked until PLL is Locked ments. It also provides various options such as different slew rate ÎÎSelectable 0%, -0.25%, or -0.5% Spread on Differential and amplitude through SMBUS, so users can configure the de- Outputs vice easily to get the optimized performance for their individual ÎÎStrapping pins or SMBus for Configuration boards. The device also supports selectable spread-spectrum ÎÎDifferential Output-To-Output Skew <50ps options to reduce EMI for various applications. ÎÎVery-Low Jitter Outputs à Differential Cycle-To-Cycle Jitter <50ps à PCIe Gen1/Gen2/Gen3/Gen4/Gen5 Compliant à CMOS REFOUT Phase Jitter • < 0.3ps RMS, SSC off • <1.5ps RMS, SSC on ÎÎTotally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) ÎÎHalogen and Antimony Free. “Green” Device (Note 3) ÎÎPackaging (Pb-free & Green): 32-lead 5mm × 5mm TQFN Block Diagram REFOUT OE[3:0]# Q3 XTAL_IN/CLK OSC PLL XTAL_OUT SS Q2 SCLK Q1 SDATA SADR CTRL SS_SEL_TRI LOGIC Q0 PD# Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. PI6CG33401 Document Number DS41072 Rev 4-2 1 www.diodes.com September 2019 Diodes Incorporated
