Datasheet > 9ZXL0831EKILF

9ZXL0831EKILF

更新时间： 2022-02-26 09:48:38

品牌	Logo	应用领域
艾迪悌 - IDT		PC
页数	文件大小	规格书
18页	273K
描述
8-Output DB800ZL for PCIe Gen1â4 and QPI/UPI

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9ZXL0831EKILF 数据手册

9ZXL0831E / 9ZXL0851E

8-Output DB800ZL for PCIe

Gen1–4 and QPI/UPI

Datasheet

Description

The 9ZXL0831E / 9ZXL0851E are second-generation enhanced

performance DB800ZL differential buffers. The parts are

Features

▪ LP-HCSL outputs; eliminate 16 resistors, save 27mm²of area

(0831E)

pin-compatible upgrades to the 9ZXL0831A and 9ZXL0851A, while

offering a much improved phase jitter performance. A fixed external

feedback maintains low drift for critical QPI/UPI applications.

▪ LP-HCSL outputs with 85Ω Zout; eliminate 32 resistors, save

64mm²of area (0851E)

▪ 8 OE# pins; hardware control of each output

▪ Selectable PLL BW; minimizes jitter peaking in cascaded PLL

PCIe Clocking Architectures

Supported

▪ Common Clocked (CC)

topologies

▪ Hardware/SMBus control of PLL bandwidth and bypass; change

mode without power cycle

▪ Independent Reference (IR) with and without spread spectrum

▪ Spread spectrum compatible; tracks spreading input clock for EMI

reduction

Typical Application

▪ Servers

▪ 100MHz & 133.33MHz PLL mode; UPI and legacy QPI support

▪ 6 × 6 mm 48-VFQFPN package; small board footprint

▪ Storage

Key Specifications

▪ Cycle-to-cycle jitter < 50ps

▪ Networking

▪ SSDs

▪ Output-to-output skew < 50ps

Output Features

▪ 8 Low-Power (LP) HCSL output pairs (0831E)

▪ Input-to-output delay: Fixed at 0ps

▪ Input-to-output delay variation < 50ps

▪ Phase jitter: PCIe Gen4 < 0.5ps rms

▪ Phase jitter: QPI/UPI > = 9.6GB/s < 0.2ps rms

▪ Phase jitter: IF-UPI < 1.0ps rms

▪ 8 Low-Power (LP) HCSL output pairs with 85Ω Zout (0851E)

Block Diagram

VDDR

VDDA

VDD x7

FBOUT_NC#

FBOUT_NC

PLL

DIFIN#

DIFIN

DIF7#

DIF7

^100M_133M#

8 outputs

SMBus

Engine Configuration

Factory

SMBCLK

SMBDAT

DIF0#

DIF0

^vHIBW_BYPM-LOBW#

^CKPWRGD_PD#

vOE[7:0]#

Control Logic

Resistors are integrated on 9ZXL085x devices and

external on 9ZXL083x devices

GNDR

EPAD/GND

August 14, 2018

12 3 4 5 6 7...18

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