525R-02IT View Datasheet(PDF) - Integrated Device Technology
Part Name
Description
Manufacturer
525R-02IT Datasheet PDF : 9 Pages
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ICS525-01/02
OSCaRTM User Configurable Clock
Description
The ICS525-01/02 are the most flexible way to
generate a high-quality, high-accuracy, high-frequency
clock output from an inexpensive crystal or clock input.
The name OSCaR stands for OSCillator Replacement,
as they are designed to replace crystal oscillators in
almost any electronic system. 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 LOCOTM family of parts, which
are smaller and more cost effective.
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 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
• ICS525-01 with output frequencies up to 160 MHz
• ICS525-02 with output frequencies up to 250 MHz
• User determines the output frequency by setting all
internal dividers
• Eliminates need for custom oscillators
• No software needed
• Online ICS525 calculator at
www.icst.com/products/ics525inputForm.html
• 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
NOTE: EOL for non-green parts to occur on
5/13/10 per PDN U-09-01
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
VCO
Loop Filter
VCO
Divider
9
2 GND
V8:V0
Output
Divider
3
S2:S0
CLK
REF
MDS 525-01/02 R
1
Integrated Device Technology, Inc. ● www.idt.com
Revision 021710
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