ics514 Integrated Device Technology, ics514 Datasheet

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ics514

Manufacturer Part Number
ics514
Description
Loco? Pll Clock Generator
Manufacturer
Integrated Device Technology
Datasheet

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LOCO™ PLL CLOCK GENERATOR
IDT™ / ICS™ LOCO™ PLL CLOCK GENERATOR
Description
The ICS514 LOCO
generate a high-quality, high-frequency clock output
from a 14.31818 MHz 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, inexpensive crystal to
produce output clocks up to 66.66 MHz.
Stored in the chip’s ROM is the ability to generate five
different output frequencies, allowing one chip to work
in different speed processor systems.
The device also has a power-down mode that turns off
the clock outputs when both select pins are low. In this
mode, the internal PLL is not running.
Block Diagram
14.31818 MHz crystal
TM
or clock input
is the most cost effective way to
Optional crystal capacitors
X1/ICLK
X2
S1:0
2
Oscillator
Crystal
1
Features
and Control
Packaged as 8-pin SOIC or die
Available in Pb (lead) free package
IDT’s lowest cost PLL clock plus reference
Produces common computer frequencies
Input crystal frequency typically 14.3182 MHz
Output clock frequencies up to 66.66 MHz from a
14.3182 MHz crystal or input clock
Low jitter of 50 ps (one sigma)
Compatible with all popular CPUs
Duty cycle of 45/55
Custom frequencies available
Operating voltage of 3.3 V to 5.5 V
Power-down mode turns off chip
25 mA drive capability at TTL levels
Advanced, low-power CMOS process
PLL Clock
Synthesis
GND
VDD
Circuitry
REF
CLK
ICS514
DATASHEET
ICS514
REV E 031008

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ics514 Summary of contents

Page 1

... LOCO™ PLL CLOCK GENERATOR Description TM The ICS514 LOCO is the most cost effective way to generate a high-quality, high-frequency clock output from a 14.31818 MHz crystal or clock input. The name LOCO stands for Low Cost Oscillator designed to replace crystal oscillators in most electronic systems. Using Phase-Locked Loop (PLL) techniques, the device uses a standard, inexpensive crystal to produce output clocks ...

Page 2

... Output Crystal connection to a 14.31818 MHz crystal. Leave unconnected for clock input. 2 CLOCK MULTIPLIER S0 CLK Multiplier 0 Power-down CLK — 1.746 0 33.33 2.328 1 40 2.794 0 50 3.492 1 66.66 4.656 Pin Description ICS514 Accuracy — 1 ppm 0.008% 1 ppm 1 ppm 0.008% REV E 031008 ...

Page 3

... X1 to ground and from Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS514. 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 4

... Typ. Max. Units +70 C +5.5 V Min. Typ. Max. Units 3.0 5.5 VDD/2 VDD/2 (VDD/2)-1 2.0 0.8 VDD/2 0.5 2.4 0 1.5 mA +70 mA 270 4 Min. Typ. Max. Units 5 14.31818 27 2 14.31818 50 14 66.66 140 14 66.66 100 49-51 55 ICS514 REV E 031008 MHz MHz MHz MHz ...

Page 5

... Deviation from ja mean t js Symbol Conditions Min. Still air JA 1 m/s air flow JA 3 m/s air flow JA JC Marking Diagram (Pb free) 8 514MLF YYWW ###### 1 5 CLOCK MULTIPLIER Min. Typ. Max. Units +160 Typ. Max. Units 150 C/W 140 C/W 120 C ICS514 REV E 031008 ...

Page 6

... IDT™ / ICS™ LOCO™ PLL CLOCK GENERATOR Symbol SEATING B PLANE C .10 (.004) Shipping Packaging ICS514M Tubes ICS514M Tape and Reel 514MLF Tubes 514MLF Tape and Reel 6 CLOCK MULTIPLIER Millimeters Inches Min Max Min Max 1.35 1.75 .0532 .0688 0.10 0.25 .0040 ...

Page 7

... ICS514 LOCO™ PLL CLOCK GENERATOR 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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