ics512 Integrated Device Technology, ics512 Datasheet

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ics512

Manufacturer Part Number
ics512
Description
Loco? Pll Clock Multiplier
Manufacturer
Integrated Device Technology
Datasheet

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LOCO™ PLL CLOCK MULTIPLIER
IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER
Description
The ICS512 is the most cost effective way to generate
a high-quality, high frequency clock output and a
reference clock from a lower frequency crystal or clock
input. The name LOCO stands for Low Cost Oscillator,
as it is designed to replace crystal oscillators in most
electronic systems. Using Phase-Locked-Loop (PLL)
techniques, the device uses a standard fundamental
mode, inexpensive crystal to produce output clocks up
to 200 MHz. With a reference output, this chip plus an
inexpensive crystal can replace two oscillators
Stored in the chip’s ROM is the ability to generate nine
different multiplication factors, allowing one chip to
output many common frequencies (see table on page
2).
This product is intended for clock generation. It has low
output jitter (variation in the output period), but input to
output skew and jitter are not defined or guaranteed.
For applications which require defined input to output
skew, use the ICS570B.
Block Diagram
Clock input
Crystal or
X1/ICLK
Optional crystal
X2
S1, S0
capacitors
Oscillator
Crystal
2
and Control
PLL Clock
Synthesis
VDD
GND
Circuitry
1
Features
Packaged as 8-pin SOIC or die
Available in Pb (lead ) free package
Upgrade of popular ICS502 with:
Zero ppm multiplication error
Easy to cascade with other 5xx series
Input crystal frequency of 5 - 27 MHz
Input clock frequency of 2 - 50 MHz
Output clock frequencies up to 200 MHz
Compatible with all popular CPUs
Duty cycle of 45/55 up to 200 MHz
Mask option for nine selectable frequencies
Operating voltages of 3.0 to 5.5 V
Industrial temperature version available
Advanced, low power CMOS process
— changed multiplier table
— higher operating frequncies
CLK
REF
ICS512
DATASHEET
ICS512
REV F 070805

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ics512 Summary of contents

Page 1

... LOCO™ PLL CLOCK MULTIPLIER Description The ICS512 is the most cost effective way to generate a high-quality, high frequency clock output and a reference clock from a lower frequency crystal or clock input. The name LOCO stands for Low Cost Oscillator designed to replace crystal oscillators in most electronic systems ...

Page 2

... M M,M M,M M 83. 1,0 1,M 1,1 M,1 1,0 2 CLOCK MULTIPLIER S0 CLK 0 4X input M 5.333X input 1 5X input 0 2.5X input M 2X input 1 3.333X input 0 6X input M 3X input 1 8X input 0,0 0,0 M,0 1,0 0,0 100 120 125 133.3 150 0,1 1,1 0,1 0,M 1,0 ICS512 REV F 070805 ...

Page 3

... Buffered crystal oscillator output clock. Output Clock output per table above. Tri-level Input Mulitplier select pin 0. Connect to GND or VDD or float. Tri-level Input Mulitplier select pin 1. Connect to GND or VDD or float. Output Crystal connection. Leave unconnected for clock input. 3 CLOCK MULTIPLIER Pin Description ICS512 REV F 070805 ...

Page 4

... Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS512. These ratings, which are standard values for ICS 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 5

... CLOCK MULTIPLIER Min. Typ. Max. Units 3 5.5 VDD/2 (VDD/2)-1 0.5 2 Min. Typ. Max. Units 5 27 MHz 2 50 MHz 14 200 MHz 14 160 MHz 14 160 MHz 14 145 MHz 49-51 55 +200 80 ICS512 REV F 070805 ...

Page 6

... ICS512MI ICS512MIT ICS512MI ICS512MILF ICS512MILFT Parts that are ordered with a "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant. While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (ICS) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use ...

Page 7

... ICS512 LOCO™ PLL CLOCK MULTIPLIER 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 +408 284 8200 (outside U.S.) © ...

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