ics525r-04ilf Integrated Device Technology, ics525r-04ilf Datasheet
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ics525r-04ilf
Manufacturer Part Number
ics525r-04ilf
Description
Oscar-tm User Configurable Pecl Clock
Manufacturer
Integrated Device Technology
Datasheet
1.ICS525R-04ILF.pdf
(8 pages)
OSCAR™ USER CONFIGURABLE PECL CLOCK
Description
The ICS525-04 OSCaR
generate a high quality, high frequency differential PECL
clock output from a crystal or CMOS clock input. The name
OSCaR
designed to replace crystal oscillators in almost any
electronic system. Users can easily 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
techniques, the device accepts a crystal or clock to produce
output clocks up to 156 MHz at 3.3V, keeping them
frequency locked together.
For simple multipliers to produce common frequencies,
refer to the LOCO
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 ICS527-02.
Block Diagram
IDT™ / ICS™ OSCAR™ USER CONFIGURABLE PECL CLOCK
clock input
Crystal or
TM
Optional crystal capacitors
stands for Oscillator Replacement, as it is
X1/ICLK
X2
TM
family of parts, which are smaller and
TM
is the most flexible way to
Oscillator
Crystal
Reference
R6:R0
Divider
7
Phase Comparator,
Charge Pump, and
Loop Filter
Divider
V8:V0
VCO
9
1
2
Features
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NOTE: EOL for non-green parts to occur on 5/13/10
per PDN U-09-01
2
Packaged as 28 pin SSOP (150 mil body)
Highly accurate frequency generation
User determines the output frequency by setting all
internal dividers
Eliminates need for custom oscillators
No software needed
Pull-ups on select inputs
Input crystal frequency of 5 - 27 MHz
Input clock frequency of 2 - 50 MHz
Output clock frequencies up to 156 MHz at 3.3V
Output clock frequencies up to 200 MHz at 5V
Very low jitter
PECL levels set by external resistors
Operating voltage of 3.3V or 5V
Ideal for oscillator replacement
Industrial temperature version available
Advanced, low power CMOS process
VDD
GND
VCO
RES
Divider
S2:S0
560
Output
3
VDD
ICS525-04
DATASHEET
VDD
GND
VDD
GND
82
820
82
820
ICS525-04
PECL
PECL
REV D 092209