ics527-03 Integrated Device Technology, ics527-03 Datasheet

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ics527-03

Manufacturer Part Number
ics527-03
Description
Clock Slicer User Configurable Pecl Output Zero Delay Buffer
Manufacturer
Integrated Device Technology
Datasheet
CLOCK SLICER USER CONFIGURABLE PECL OUTPUT ZDB
IDT™ / ICS™ CLOCK SLICER USER CONFIGURABLE PECL OUTPUT ZDB 1
Description
The ICS527-03 is the most flexible way to generate an
output clock from an input clock with zero skew. The
user can easily configure the device to produce nearly
any output clock that is multiplied or divided from the
input clock. The part supports non-integer
multiplications and divisions. Using Phase-Locked
Loop (PLL) techniques, the device accepts an input
clock up to 200 MHz and produces an output clock up
to 160 MHz.
The ICS527-03 aligns rising edges on CLKIN with
FBPECL at a ratio determined by the reference and
feedback dividers.
For a PECL input and output clock with zero delay, use
the ICS527-04.
Block Diagram
FBPECL
FBPECL
CLKIN
Divide
Divide
by 2
by 2
DIV2
1
0
1
0
Reference
Feedback
R6:R0
Divider
Divider
F6:F0
7
7
2
Phase Comparator,
Charge Pump, and
GND
Loop Filter
Features
NOTE: EOL for non-green parts to occur on
5/13/10 per PDN U-09-01
Packaged as 28 pin SSOP (150 mil body)
Synchronizes fractional clocks rising edges
CMOS in to PECL out
Pin selectable dividers
Zero input to output skew
User determines the output frequency - no software
needed
Slices frequency or period
Input clock frequency of 1.5 MHz to 200 MHz
Output clock frequencies from 2.5 MHz to 160 MHz
Very low jitter
Duty cycle of 45/55
Operating voltage of 3.3 V
Advanced, low power CMOS process
2
PDTS
VDD
VCO
Output
Divider
S1:S0
2
ICS527-03
DATASHEET
ICS527-03
VDD
VDD
68 ohm
180 ohm
68 ohm
180 ohm
REV D 092209
PECL
PECL

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ics527-03 Summary of contents

Page 1

... CLOCK SLICER USER CONFIGURABLE PECL OUTPUT ZDB Description The ICS527-03 is the most flexible way to generate an output clock from an input clock with zero skew. The user can easily configure the device to produce nearly any output clock that is multiplied or divided from the input clock. The part supports non-integer multiplications and divisions ...

Page 2

... Internal pull-up BIAS Resistor connection to VDD for setting level of PECL outputs. Output Complementary PECL input clock. Output PECL input clock. PECL ZDB AND MULTIPLIER/DIVIDER Output Divider Output Frequency (MHz 2 -160 Pin Description ICS527-03 REV D 092209 ...

Page 3

... It is also possible to connect the inputs to parallel I/O ports in order to switch frequencies. The output of the ICS527-03 can be determined by the following simple equation: IDT™ / ICS™ CLOCK SLICER USER CONFIGURABLE PECL OUTPUT ZDB 3 PECL ZDB AND MULTIPLIER/DIVIDER ...

Page 4

... IDT™ / ICS™ CLOCK SLICER USER CONFIGURABLE PECL OUTPUT ZDB 0.01 F VDD R0 VDD PECL PECL GND PECL output resistor network is not shown, but RES 560 is identical to PECL PECL ZDB AND MULTIPLIER/DIVIDER 50 MHz ICS527-03 REV D 092209 ...

Page 5

... An optimum layout is one with all components on the same side of the board, minimizing vias through other signal layers. Other signal traces should be routed away from the ICS527-03. This includes signal traces just underneath the device layers adjacent to the ground plane layer used by the device. ...

Page 6

... CLOCK SLICER USER CONFIGURABLE PECL OUTPUT ZDB Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS527-03. These ratings, which are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied ...

Page 7

... Common PECLIN measured at FBIN PECL ZDB AND MULTIPLIER/DIVIDER Min. Typ. Max. Units 5 pF ±70 mA 270 k Min. Typ. Max. Units 1.5 200 MHz 2.5 160 MHz 4 140 MHz ± -250 250 ps 0 500 ps ICS527-03 REV D 092209 ...

Page 8

... Basic 0.025 Basic L 0.40 1.27 .016 aaa -- 0. Package 28 pin SSOP 28 pin SSOP 28 pin SSOP 28 pin SSOP ICS527-03 Inches Max .069 .010 .059 .012 .010 .394 .244 .157 .050 8 0.004 c Temperature +70 C REV D 092209 ...

Page 9

... ICS527-03 CLOCK SLICER USER CONFIGURABLE PECL OUTPUT ZDB 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. www.idt.com © 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc ...

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