NB3W1900L datasheet(1/20 Pages) ONSEMI

Part #	NB3W1900L

Description	3.3 V 100/133 MHz Differential 1:19 HCSL-Compatible Push?륯ull Clock ZDB/Fanout Buffer

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Manufacturer	ONSEMI [ON Semiconductor]

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July, 2016 − Rev. 1

1

Publication Order Number:

NB3W1900L/D

NB3W1900L

3.3 V 100/133 MHz

Differential 1:19

HCSL-Compatible Push‐Pull

Clock ZDB/Fanout Buffer for

PCIe[

Description

The NB3W1900L differential clock buffers are designed to work in

conjunction with a PCIe compliant source clock synthesizer to provide

point-to-point clocks to multiple agents

. The device is capable of

distributing the reference clocks for Intel® QuickPath Interconnect

(Intel QPI)

, PCIe Gen1/Gen2/Gen3.The NB3W1900L internal PLL is

optimized to support 1

00 MHz and 133 MHz frequency operation.

The NB3W1900L is developed with the low-power NMOS Push-Pull

buffer type

.

Features

• 19 Low Power Differential Clock Output Pairs @ 0.7V

• Output-to-Output Skew Performance: < 85 ps

• Cycle-to-Cycle Jitter (PLL Mode): < 50ps

• Low Phase Jitter (Intel QPI, PCIe Gen 2/Gen 3 Phase Jitter

Compliant)

• Input-to-Output Delay Variation: < 50 ps

• Fixed-Feedback for Lowest Input-to-Output Delay Variation

• Spread Spectrum Compatible; Tracks Input Clock Spreading for Low

EMI

• 100 MHz and 133 MHz PLL Mode to Meet the Next Generation

PCIe Gen2 / Gen 3 and Intel QPI Phase Jitter

• Individual OE Control via SMBus

• Low-Power NMOS Push-Pull HCSL−Compatible Outputs

• PLL Configurable for PLL Mode or Bypass Mode

(Fanout Operation)

• SMBus Address Configurable to Allow Multiple Buffers in a Single

Control Network

• Programmable PLL Bandwidth

• Two Tri-level Addresses Selection (Nine SMBus Addresses)

• QFN 72-pin Package, 10 mm × 10 mm

• These are Pb-Free Devices

MARKING DIAGRAM

QFN72

MN SUFFIX

CASE 485DK

See detailed ordering and shipping information on page 19 of

this data sheet.

ORDERING INFORMATION

www.onsemi.com

72

1

A

= Assembly Location

WL

= Wafer Lot

YY

= Year

WW

= Work Week

G

= Pb-Free Package

NB3W

1900L

AWLYYWWG

1

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