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PI6CG18200

Very Low Power 1.8V, 2-Output PCIe 4.0 Clock Generator

Datasheet

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Description

The PI6CG18200 is a 2-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. 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 requirements. It also provides various options such as different slew rate and amplitude through strapping pins or SMBUS so that users can configure the device easily to get the optimized performance for their individual boards. The device also supports selectable spread spectrum options to reduce EMI for various applications.

Feature(s)

1.8V supply voltage
Crystal/CMOS input: 25 MHz
2 differential low power HCSL outputs
Individual output enable
Reference CMOS output
Programmable Slew rate and output amplitude for each output
Differential outputs blocked until PLL is locked
Selectable 0%, -0.25% or -0.5% spread on differential outputs
Strapping pins or SMBus for configuration
3.3V tolerant SMBus interface support
Very low jitter outputs
ÎDifferential cycle-to-cycle jitter <50ps
Differential output-to-output skew <50ps
PCIe Gen1/Gen2/Gen3/Gen4 compliant
CMOS REFOUT phase jitter is < 1.5ps RMS
Packaging (Pb-free & Green): 24-lead 4×4mm TQFN

Product Specifications

Product Parameters

Function	Generator
Compliance(Only Automotive supports PPAP)	Standard
Input Type(s)	Crystal, CMOS
Additive Jitter (ps)	<0.5
Number of Outputs	2
Maximum Output Frequency (MHz)	100
Output Type(s)	Low Power HCSL
Skew (PS)	50
Supply Voltage (V)	1.8
Ambient or Junction Temperature (°C)	-40 to 85

Technical Documents

SPICE/IBIS Model Documents

PI6CG18200_MODEL_IBIS_RevA.ZIP (141 KB)

Application Information

PI6CG18200-Application-Schematic.pdf (13 KB)

Recommended Soldering Techniques

TN1.pdf

Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents

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RoHS CofC

RoHSFile

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2328	2018-04-12	2018-10-12	Device End of Life for tray packaging only