ICS874002AGLF IDT, Integrated Device Technology Inc, ICS874002AGLF Datasheet

ICS874002AGLF

Manufacturer Part Number

ICS874002AGLF

Description

IC JITTER ATTENUATOR 20-TSSOP

Manufacturer

IDT, Integrated Device Technology Inc

Series

HiPerClockS™r

Type

Jitter Attenuatorr

Datasheet

1.ICS874002AGLF.pdf (15 pages)

Specifications of ICS874002AGLF

Input

HCSL, LVDS, LVHSTL, LVPECL, SSTL

Output

LVDS

Frequency - Max

160MHz

Voltage - Supply

3.135 V ~ 3.465 V

Operating Temperature

0°C ~ 70°C

Mounting Type

Surface Mount

Package / Case

20-TSSOP

Frequency-max

160MHz

Number Of Elements

Supply Current

80mA

Pll Input Freq (min)

98MHz

Pll Input Freq (max)

128MHz

Operating Supply Voltage (typ)

3.3V

Operating Temp Range

0C to 70C

Package Type

TSSOP

Output Frequency Range

98 to 160MHz

Operating Supply Voltage (min)

3.135V

Operating Supply Voltage (max)

3.465V

Operating Temperature Classification

Commercial

Pin Count

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

800-1213
800-1213-5
800-1213
874002AGLF

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ICS874002AGLF

Manufacturer:

IDT Integrated Device Technolo

Quantity:

135

Current page: 1 of 15
Download datasheet (618Kb)

Float = 400kHz

PCI EXPRESS/JITTER ATTENUATOR

bandwidth, high phase noise PLL frequency synthesizer. In

these systems, a jitter attenuator may be required to attenuate

high frequency random and deterministic jitter components

from the PLL synthesizer and from the system board. The

ICS874002 has 3 PLL bandwidth modes: 200kHz, 400kHz, and

800kHz. The 200kHz mode will provide maximum jitter

attenuation, but with higher PLL tracking skew and spread

spectrum modulation from the motherboard synthesizer may

be attenuated. The 400kHz provides an intermediate band-

width that can easily track triangular spread profiles, while

providing good jitter attenuation. The 800kHz bandwidth

provides the best tracking skew and will pass most spread

profiles, but the jitter attenuation will not be as good as the

lower bandwidth modes. Because some 2.5Gb serdes have x20

multipliers while others have than x25 multipliers, the

ICS874002 can be set for 1:1 mode or 5/4 multiplication mode

(i.e. 100MHz input/125MHz output) using the F_SEL pin.

The ICS874002 uses IDT’s 3

PLL technology to achieve the lowest possible phase noise.

The device is packaged in a 20 Lead TSSOP package, making

it ideal for use in space constrained applications such as PCI

Express add-in cards.

IDT

HiPerClockS™

0 = 200kHz

1 = 800kHz

IC S

LOCK

ENERAL

™

BW_SEL

nFB_IN

/ ICS

F_SEL

FB_IN

nCLK

CLK

™

PCI EXPRESS/JITTER ATTENUATOR

Pullup

Pulldown

Pullup

Pulldown

Float

Pulldown

The ICS874002 is a high performance Differential-

to-LVDS Jitter Attenuator designed for use in PCI

Express systems. In some PCI Express systems,

such as those found in desktop PCs, the PCI

Express clocks are generated from a low

IAGRAM

ESCRIPTION

Detector

Phase

Generation FemtoClock

490 - 640 MHz

VCO

Output Divider

0 ÷5 (default)

1 ÷4

÷5 (fixed)

PLL B

Two differential LVDS output pair

One differential clock input

CLK and nCLK supports the following input types:

LVPECL, LVDS, LVHSTL, SSTL, HCSL

Output frequency range: 98MHz - 160MHz

Input frequency range: 98MHz - 128MHz

VCO range: 490MHz - 640MHz

Cycle-to-cycle jitter: 35ps (maximum)

3.3V operating supply

Three bandwidth modes allow the system designer to make

jitter attenuation/tracking skew design trade-offs

0°C to 70°C ambient operating temperature

Available in both standard (RoHS 5) and lead-free (RoHS 6)

packages

BW_SEL

0 = PLL Bandwidth: 200kHz

Float = PLL Bandwidth: 400kHz (Default)

1 = PLL Bandwidth: 800kHz

EATURES

ANDWIDTH

YPICAL

QA0

nQA0

QA1

nQA1

FB_OUT

nFB_OUT

ICS874002AG REV. A DECEMBER 6, 2006

)

6.5mm x 4.4mm x 0.92mm

nFB_OUT

BW_SEL

FB_OUT

F_SEL

nQA0

DDO

DDA

20-Lead TSSOP

package body

ICS874002

G Package

SSIGNMENT

Top View

QA0

QA1

nQA1

nFB_IN

FB_IN

GND

nCLK

CLK

DDO

Related parts for ICS874002AGLF

ICS874002AGLF Summary of contents

Page 1

PCI EXPRESS/JITTER ATTENUATOR G D ENERAL ESCRIPTION The ICS874002 is a high performance Differential to-LVDS Jitter Attenuator designed for use in PCI HiPerClockS™ Express systems. In some PCI Express systems, such as those found in desktop PCs, the ...

Page 2

ICS874002 PCI EXPRESS/JITTER ATTENUATOR ABLE IN ESCRIPTIONS ...

Page 3

ICS874002 PCI EXPRESS/JITTER ATTENUATOR BSOLUTE AXIMUM ATINGS Supply Voltage Inputs, V -0. Outputs, V -0. Package Thermal Impedance, 73.2°C/W (0 lfpm) JA Storage Temperature, T -65°C to 150°C STG ...

Page 4

ICS874002 PCI EXPRESS/JITTER ATTENUATOR T 4D. LVDS DC C ABLE HARACTERISTICS ...

Page 5

ICS874002 PCI EXPRESS/JITTER ATTENUATOR P ARAMETER V DD, V 3.3V±5% V DDO POWER SUPPLY DDA LVDS + – Float GND 3.3V LVDS UTPUT OAD EST nQx Qx nQy Qy t sk( UTPUT KEW ...

Page 6

ICS874002 PCI EXPRESS/JITTER ATTENUATOR 80% Clock 20% Outputs UTPUT ISE ALL IME V DD LVDS DC Input IFFERENTIAL UTPUT OLTAGE ETUP IDT ™ / ICS ™ PCI EXPRESS/JITTER ATTENUATOR V ...

Page 7

ICS874002 PCI EXPRESS/JITTER ATTENUATOR OWER UPPLY ILTERING ECHNIQUES As in any high speed analog circuitry, the power supply pins are vulnerable to random noise. The ICS874002 provides separate power supplies to isolate any high switching noise ...

Page 8

ICS874002 PCI EXPRESS/JITTER ATTENUATOR IFFERENTIAL LOCK NPUT NTERFACE The CLK /nCLK accepts LVDS, LVPECL, LVHSTL, SSTL, HCSL and other differential signals. Both V SWING V and V input requirements. Figures show interface PP ...

Page 9

ICS874002 PCI EXPRESS/JITTER ATTENUATOR 3.3V LVDS D T RIVER ERMINATION A general LVDS interface is shown in Figure 100 differential transmission line environment, LVDS drivers require a matched load termination of 100 3.3V IDT ™ / ICS ...

Page 10

ICS874002 PCI EXPRESS/JITTER ATTENUATOR This section provides information on power dissipation and junction temperature for the ICS874002. Equations and example calculations are also provided. 1. Power Dissipation. The total power dissipation for the ICS874002 is the sum of the core ...

Page 11

ICS874002 PCI EXPRESS/JITTER ATTENUATOR ABLE VS IR LOW ABLE FOR JA Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards NOTE: Most modern PCB designs use multi-layered boards. The data in ...

Page 12

ICS874002 PCI EXPRESS/JITTER ATTENUATOR ACKAGE UTLINE UFFIX FOR IDT ™ / ICS ™ PCI EXPRESS/JITTER ATTENUATOR TSSOP EAD ABLE ACKAGE IMENSIONS ...

Page 13

ICS874002 PCI EXPRESS/JITTER ATTENUATOR ABLE RDERING NFORMATION ...

Page 14

ICS874002 PCI EXPRESS/JITTER ATTENUATOR IDT ™ / ICS ™ PCI EXPRESS/JITTER ATTENUATOR ...

Page 15

ICS874002 PCI EXPRESS/JITTER ATTENUATOR Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 ...

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