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www.diodes.com

June 2020

Diodes Incorporated

PI6CB18601

Document Number DS40505 Rev 3-2

A product Line of

Diodes Incorporated

PI6CB18601

Very Low Power 6-Output PCIe Clock Buffer With On-chip Termination

Features

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1.8V supply voltage

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HCSL input: 100MHz, also support 50MHz or 125MHz via

SMBus

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6 differential low power HCSL outputs with on-chip

termination

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Individual output enable

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Programmable Slew rate and output amplitude for each output

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Differential outputs blocked until PLL is locked

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Strapping pins or SMBus for configuration;

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3.3V tolerant SMBus interface support

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Very low jitter outputs

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Differential cycle-to-cycle jitter <50ps

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Differential output-to-output skew <50ps

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PCIe Gen1/Gen2/Gen3/Gen4 compliant

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Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

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Halogen and Antimony Free. “Green” Device (Note 3)

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For 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.

https://www.diodes.com/quality/product-definitions/

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Packaging (Pb-free & Green): 40-lead 5×5mm TQFN

Description

The PI6CB18601 is an 6-output very low power PCIe Gen1/Gen2/

Gen3/Gen4 clock buffer. It takes an reference input to fanout

eight 100MHz low power differential HCSL outputs with on-chip

terminations.Theon-chipterminationcansave24externalresistors

andmakelayouteasier.IndividualOEpinforeachoutputprovides

easier power management.

It uses Diodes proprietary PLL design to achieve very low jitter

that meets PCIe Gen1/Gen2/Gen3/Gen4 requirements. Other

than PCIe 100MHz support, this device also support Ethernet ap-

plication with 50MHz or 125MHz via SMBus. It provides various

options such as different slew rate and amplitude through strap-

ping pins or SMBUS so that users can configure the device easily

to get the optimized performance for their individual boards.

Block Diagram

IN+

IN-

SCLK

SDATA

OE[5:0]#

CTRL

LOGIC

Q0

Q1

Q2

Q3

Q4

Q5

SADR_TRI

BW_SEL_TRI

PD#

PLL

b

P

Lead-free Green

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.