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PI6CG18201

Very Low Power 1.8V, 2-Output PCIe 4.0 Clock Generator with on-chip termination

Evaluation Boards and User Guides

PI6CG18201-EVB-use-manual-1.pdf (233 KB)

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Description

The PI6CG18201 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 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 Incorporated 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 with on-chip termination
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
Differential 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

Application Information

PI6CG18201_APP_SCH.DSN (206 KB)

PI6CG18201-Application-schematic.pdf (13 KB)

Design Tools

PI6CG18201_MODEL_IBIS_RevA.zip (127 KB)

Evaluation Boards and User Guides

PI6CG18201-EVB-use-manual-1.pdf (233 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

Press Releases

Diodes Incorporated Introduces Industry-Leading, High-Speed, Multichannel Mux/Demux Signal Switch ICs, Clock Generators and Clock Buffers for PCIe 4.0 architecture and other Applications up to 20Gbps June 5, 2018