ICS525-11 Datasheet: (ICS525-11/-12) User Configurable Clock





ICS525-11 (ICS525-11/-12) User Configurable Clock Datasheet

Part Number ICS525-11
Description (ICS525-11/-12) User Configurable Clock
Manufacture Integrated Circuit Systems
Total Page 9 Pages
PDF Download Download ICS525-11 Datasheet PDF

Features: ICS525-01/02/11/12 www.DataSheet4U.com User Configurable Clock Features • Pa ckaged as 28-pin SSOP (150 mil body) Industrial and commercial versions av ailable in Pb (lead) free package Desc ription The ICS525-01/02/11/12 are the most flexible way to generate a high-qu ality, high-accuracy, high-frequency cl ock output from an inexpensive crystal or clock input. The user can configure the device to produce nearly any output frequency from any input frequency by grounding or floating the select pins. Neither microcontroller, software, nor device programmer are needed to set the frequency. Using Phase-Locked Loop (PL L) techniques, the device accepts a sta ndard fundamental mode, inexpensive cry stal to produce output clocks up to 250 MHz. It can also produce a highly accu rate output clock from a given input cl ock, keeping them frequency locked toge ther. For similar capability with a ser ial interface, use the ICS307. For simp le multipliers to produce common frequencies, refer to the ICS50x f.

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www.DataSheet4U.com
ICS525-01/02/11/12
User Configurable Clock
Description
The ICS525-01/02/11/12 are the most flexible way to
generate a high-quality, high-accuracy, high-frequency
clock output from an inexpensive crystal or clock input.
The user can configure the device to produce nearly
any output frequency from any input frequency by
grounding or floating the select pins. Neither
microcontroller, software, nor device programmer are
needed to set the frequency. Using Phase-Locked
Loop (PLL) techniques, the device accepts a standard
fundamental mode, inexpensive crystal to produce
output clocks up to 250 MHz. It can also produce a
highly accurate output clock from a given input clock,
keeping them frequency locked together.
For similar capability with a serial interface, use the
ICS307. For simple multipliers to produce common
frequencies, refer to the ICS50x family of parts, which
are smaller and more cost effective.
These products are intended for clock generation. They
have low output jitter (variation in the output period), but
input to output skew and jitter are not defined nor
guaranteed. For applications which require defined
input to output timing, use the ICS527-01.
Features
Packaged as 28-pin SSOP (150 mil body)
Industrial and commercial versions available in Pb
(lead) free package
User determines the output frequency by setting all
internal dividers
Eliminates need for custom oscillators
No software needed
Online calculator determines register settings
Pull-ups on all select inputs
Input crystal frequency of 5 - 27 MHz
Input clock frequency of 2 - 50 MHz
Very low jitter
Duty cycle of 45/55 up to 200 MHz
Operating voltage of 3.0 V or 5.5 V
Ideal for oscillator replacement
Industrial temperature version available
For Zero Delay, refer to the ICS527
Block Diagram
PD
X1/ICLK
Crystal or clock
input X2
Optional crystal capacitors
Crystal
Oscillator
Reference
Divider
7
R6:R0
2 VDD
Phase Comparator,
Charge Pump, and
Loop Filter
VCO
Divider
VCO
9 2 GND
V8:V0
Output
Divider
3
S2:S0
CLK
REF
MDS 525-01/02/11/12 Q
1
Revision 101105
Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com

                    
     






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