ICS858020AKLF IDT, Integrated Device Technology Inc, ICS858020AKLF Datasheet

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ICS858020AKLF

Manufacturer Part Number
ICS858020AKLF
Description
IC FANOUT BUFF 1-2 CML 16-VFQFPN
Manufacturer
IDT, Integrated Device Technology Inc
Series
HiPerClockS™r
Type
Fanout Buffer (Distribution)r
Datasheet

Specifications of ICS858020AKLF

Number Of Circuits
1
Ratio - Input:output
1:4
Differential - Input:output
Yes/Yes
Input
CML, LVDS, LVPECL, SSTL
Output
CML
Frequency - Max
3.2GHz
Voltage - Supply
2.375 V ~ 3.63 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-VFQFN
Frequency-max
3.2GHz
Number Of Outputs
8
Operating Supply Voltage (max)
-3.6/3.6V
Operating Temp Range
-40C to 85C
Propagation Delay Time
0.575ns
Operating Supply Voltage (min)
-2.375/2.375V
Mounting
Surface Mount
Pin Count
16
Operating Supply Voltage (typ)
-2.5/-3.3/3.3V
Package Type
VFQFN
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
858020AKLF

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ICS858020AKLF
Manufacturer:
IDT
Quantity:
20 000
V
LOW SKEW, 1-TO-4 DIFFERENTIAL-TO-CML
FANOUT BUFFER
General Description
which requires the termination of the output by 50
ICS858020 is optimized for high speed and very low output skew,
making it suitable for use in demanding applications such as
SONET, 1 Gigabit and 10 Gigabit Ethernet, and Fibre Channel.
The internally terminated differential input and V
other differential signal families such as LVDS, LVHSTL and Open
Collector Output (OC) to be easily interfaced to the input with
minimal use of external components. The ICS858020 is packaged
in a small 3mm x 3mm 16-pin VFQFN package which makes it
ideal for use in space-constrained applications.
Block Diagram
IDT™ / ICS™ CML FANOUT BUFFER
REF_AC
HiPerClockS™
ICS
nIN
V
IN
T
The ICS858020 is a high speed 1-to-4
Differential-to-Open-Collector Output Fanout Buffer
and is a member of the HiPerClockS™ family of
high performance clock solutions from IDT. The
ICS858020 uses an open-collector output structure
REF
_
to V
AC
CC
pin allow
. The
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
1
Features
Four differential CML outputs
One LVPECL differential clock input
IN/nIN pair can accept the following differential input levels:
LVPECL, LVDS, CML, SSTL
Maximum output frequency: 3.2GHz
Output skew: 30ps (maximum)
Part-to-part skew: 225ps (maximum)
Additive phase jitter, RMS: <0.3ps (typical)
Propagation delay: 600ps (maximum)
Operating voltage supply range:
V
-40°C to 85°C ambient operating temperature
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
CC
= 2.375V to 3.63V, V
3mm x 3mm x 0.925
Pin Assignment
V
ICS858020AK REV. A SEPTEMBER 11, 2008
REF_AC
EE
nIN
V
IN
T
16-Lead VFQFN
= 0V
ICS858020
1
2
3
4
K Package
16 15 14 13
5
Top View
6
mm package body
7
8
ICS858020
12
11
10
9
Q1
nQ1
Q2
nQ2

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ICS858020AKLF Summary of contents

Page 1

LOW SKEW, 1-TO-4 DIFFERENTIAL-TO-CML FANOUT BUFFER General Description The ICS858020 is a high speed 1-to-4 ICS Differential-to-Open-Collector Output Fanout Buffer and is a member of the HiPerClockS™ family of HiPerClockS™ high performance clock solutions from IDT. The ICS858020 uses an ...

Page 2

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER Table 1. Pin Descriptions Number Name Type 1 IN Input 2 V Input Output REF_AC 4 nIN Input Power nQ3, Q3 Output 8, 13 ...

Page 3

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER Table 2B. DC Characteristics, V Symbol Parameter R Differential Input Resistance IN V Input High Voltage IH V Input Low Voltage IL V Input Voltage Swing; NOTE Differential Input Voltage ...

Page 4

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER Additive Phase Jitter The spectral purity in a band at a specific offset from the fundamental compared to the power of the fundamental is called the dBc Phase Noise. This value is normally ...

Page 5

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER Parameter Measurement Information 0V Power V CC Supply V EE -2.375V to -3.63V Open Collector Output Load AC Test Circuit Par t 1 nQx Qx Par t 2 nQy Qy tsk(pp) Part-to-Part Skew ...

Page 6

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER Parameter Measurement Information, continued nQ[0:3] 80% 20% Q[0: Output Rise/Fall Time Application Information Recommendations for Unused Output Pins Outputs: CML Outputs All unused CML outputs can be left floating. We recommend ...

Page 7

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER 3.3V Differential Input with Built-In 50 The IN /nIN with built-in 50Ω terminations accept LVDS, LVPECL, LVHSTL, CML, SSTL and other differential signals. Both signals must meet the V and V input requirements. ...

Page 8

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER 2.5V LVPECL Input with Built-In 50 The IN /nIN with built-in 50Ω terminations accept LVDS, LVPECL, LVHSTL, CML, SSTL and other differential signals. Both signals must meet the V and V input requirements. ...

Page 9

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER VFQFN EPAD Thermal Release Path In order to maximize both the removal of heat from the package and the electrical performance, a land pattern must be incorporated on the Printed Circuit Board (PCB) ...

Page 10

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER Schematic Example Figure 4 shows a schematic example of the ICS858020. This schematic provides examples of input and output handling. The ICS858020 input has built-in 50Ω termination resistors. The input can directly accept ...

Page 11

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER Reliability Information θ Table 4. vs. Air Flow Table for a 16 Lead VFQFN JA Linear Feet per Minute Multi-Layer PCB, JEDEC Standard Test Boards Transistor Count The transistor count for ICS858020 is: ...

Page 12

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER Ordering Information Table 6. Ordering Information Part/Order Number Marking 858020AK 020A 858020AKT 020A 858020AKLF 20AL 858020AKLFT 20AL NOTE: Parts that are ordered with an "LF" suffix to the part number are the Pb-Free ...

Page 13

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER Revision History Sheet Rev Table Page Description of Change Ordering Information Table - correct Shipping Packaging from Tray to Tube Ordering Information Table - corrected marking from ...

Page 14

ICS858020 LOW SKEW, 1-TO-4, DIFFERENTIAL-TO-CML FANOUT BUFFER Contact Information: www.IDT.com Sales 800-345-7015 (inside USA) +408-284-8200 (outside USA) Fax: 408-284-2775 www.IDT.com/go/contactIDT © 2008 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT ...

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