A product Line of
3.3V Very Low Power 2-Output PCIe Clock Generator With On-chip Termination
ÎÎ3.3V Supply Voltage
ÎÎCrystal/CMOS input: 25 MHz
ÎÎ2 Differential low power HCSL outputs with on-chip
ÎÎDefault ZOUT = 100Ω
ÎÎIndividual output enable
ÎÎReference CMOS output
ÎÎProgrammable slew rate and output amplitude for each output
ÎÎDifferential outputs blocked until PLL is locked
ÎÎSelectable 0%, -0.25% or -0.5% spread on differential outputs
ÎÎStrapping pins or SMBus for configuration
ÎÎDifferential Output-To-Output Skew <50ps
ÎÎVery-Low Jitter Outputs
àà Differential Cycle-To-Cycle Jitter <50ps
àà PCIe Gen1/Gen2/Gen3/Gen4/Gen5 Compliant
àà 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)
ÎÎFor automotive applications requiring specific change control
(i.e. parts qualified to AEC-Q100/101/200, PPAP capable,
and manufactured in IATF 16949 certified facilities), please
contact us or your local Diodes representative.
ÎÎPackaging (Pb-free & Green): 24-lead 4×4mm TQFN
The PI6CG33201C is a 2-output very low power PCIe Gen1/Gen2/
Gen3/Gen4/Gen5 clock generator. It uses 25MHz crystal or CMOS
reference as an input to generate the 100MHz low power dif-
ferential HCSL outputs with on-chip terminations. The on-chip
termination can save 8 external resistors and make layout easier.
An additional buffered reference output is provided to serve as a
low noise reference for other circuitry.
It uses Diodes' proprietary PLL design to achieve very low
jitter that meets PCIe Gen1/Gen2/Gen3/Gen4/Gen5 require-
ments. It also provides various options such as different slew rate
and amplitude through SMBUS so that users can configure the
device easily to get the optimized performance for their individ-
ual boards. The device also supports selectable spread-spectrum
options to reduce EMI for various applications.
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
Document Number DS42291 Rev 3-2
1 Diodes Incorporated