PI6CG188Q Datasheet | Diodes Incorporated

Features ÎÎ1.8V Supply Voltage ÎÎCrystal/CMOS Input: 25MHz ÎÎ8 Differential Low-Power HCSL Outputs with On-Chip Termination ÎÎIndividual Output Enable ÎÎReference CMOS Output ÎÎProgrammable Slew Rate and Output Amplitute 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 ÎÎ3.3V Tolerant SMBus Interface Support ÎÎVery-Low-Jitter Outputs àà Differential Cycle-to-Cycle Jitter <50ps àà Differential Output-to-Output Skew <60ps àà PCIe Gen1/Gen2/Gen3/ Gen4 pliant àà CMOS REFOUT Phase Jitter is < 1.5ps RMS ÎÎAEC-Q 100 Qualified, Automotive Grade 2 Support ÎÎTotally Lead-Free & Fully Ro HS pliant (Notes 1 & 2) ÎÎHalogen and Antimony Free. “Green” Device (Note 3) ÎÎPackaging (Pb-free & Green): 48-lead 6mm × 6mm TQFN Block Diagram OE[7:0]# XTAL_IN/CLK XTAL_OUT SCLK SDATA SADR SS_SEL_TRI PD# PLL SS CTRL LOGIC REFOUT Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 Description The PI6CG188Q is an 8-output very-low-power PCIe Gen1/Gen2/ Gen3/Gen4 clock generator. It uses 25MHz crystal or CMOS reference as an input to generate the 100MHz low-power differential HCSL outputs with on-chip terminations. The on-chip termination can save 32 external resistors and make layout easier. An additional buffered reference output is provided to serve as a low-noise reference for other circuitry. The device uses Diodes' proprietary PLL design to achieve verylow jitter that meets PCIe Gen1/Gen2/Gen3/Gen4 requirements. It also provides various options, such as different slew rate and amplitude, through strapping pins or SMBUS, so users can configure the device easily for optimized performance for their individual boards. The device also supports selectable spreadspectrum options to reduce EMI for Automotive applications. Pin Configuration PD# VDDO OE7# Q7Q7+ OE6# Q6Q6+ GND VDDO VDD OE5# SS_SEL_TRI GND_XTAL XTAL_IN/CLK XTAL_OUT VDD_OSC VDD_REFOUT SADR/REFOUT GND_REFOUT GND_DIG...