ICS525KIT1 IDT, Integrated Device Technology Inc, ICS525KIT1 Datasheet

ICS525KIT1

Manufacturer Part Number

ICS525KIT1

Description

KIT FOR ICS525-01 CLOCK

Manufacturer

IDT, Integrated Device Technology Inc

Datasheet

1.ICS525KIT1.pdf (1 pages)

Specifications of ICS525KIT1

Main Purpose

Timing, Clock Generator

Utilized Ic / Part

ICS525-01

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Secondary Attributes

Embedded

Primary Attributes

Other names

525KIT1

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Instructions for ICS525 OSCAR™ Demo Board

Integrated Circuit Systems, Inc.

ICS525 Demo Board

Frequency Selection

Output Termination

Crystal Tuning

The ICS525 OSCAR

family of programmable oscillator replacement clock generators. The connector on the bottom of the board

fits a standard oscillator footprint, or can be easily modified to fit a half-size footprint.

The output frequency can be changed by setting the dip switches according to the instructions in the

datasheet. Turning the switch ON connects the input to GROUND. Turning the switch OFF connects the

input to VDD as all inputs have on-chip pull-ups. A calculation program which determines input settings can

be found at:

http://www.icst.com/calculators/ics525inputForm.html

Resistor R1 is a 33Ω series termination resistor on the pin 21 clock output. It can be moved to the R2

location to evaluate the clock output on pin 22.

The ICS525 family has on-chip crystal load capacitors which will provide accurate frequency output with 13

pF parallel resonant crystals. Crystals with any load capacitance value, or even series resonant crystals,

will operate. However, the frequency will be off by up to 500 ppm (0.05%). To get an accurate frequency

output by adjusting the board to a crystal with a different value of load capacitance, use the following

formula

C1, C2 = 2(C

The 10 pF capacitors on the board adjust the load capacitance of the part so that the frequency is correct

when used with an 18 pF parallel resonant crystal.

(crystal) - 13)

0.01 F

demo board provides a way to quickly evaluate the performance of the ICS525

●

10pF

525 Race Street, San Jose, CA 95126

Instructions for ICS525 OSCAR™ Demo Board

VDD

10pF

Bottom Connector

CLKOUT

0.01 F

●

tel (408) 297-1201

●

www.icst.com

Revision 071404

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