ICS525-02 ICST [Integrated Circuit Systems], ICS525-02 Datasheet

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ICS525-02

Manufacturer Part Number
ICS525-02
Description
User Configurable Clock
Manufacturer
ICST [Integrated Circuit Systems]
Datasheet
MDS 525-01/02/11/12 Q
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.
Block Diagram
Crystal or clock
Integrated Circuit Systems, Inc.
input
Optional crystal capacitors
X1/ICLK
X2
PD
Oscillator
Crystal
525 Race Street, San Jose, CA 95126
Reference
R6:R0
Divider
7
1
Phase Comparator,
Charge Pump, and
Loop Filter
Divider
V8:V0
9
VCO
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
2
2
VDD
GND
ICS525-01/02/11/12
VCO
User Configurable Clock
tel (408) 297-1201
Divider
S2:S0
Output
3
www.icst.com
Revision 101105
CLK
REF

Related parts for ICS525-02

ICS525-02 Summary of contents

Page 1

... 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 ...

Page 2

... Power-down. Active low. Turns off entire chip when low. Clock outputs stop low. Output clock determined by status of R0-R6, V-V8, S0-S2, and input frequency. Reference output. Buffered crystal oscillator (or clock ) output. 2 525 Race Street, San Jose, CA 95126 ICS525-01/02/11/12 User Configurable Clock Revision 101105 www.icst.com ● ...

Page 3

... ICS525-02 Output Frequency and Output Divider Table CLK Output Pin 5 Pin 4 Pin 3 Divider ...

Page 4

... ICS525-12 Output Frequency and Output Divider Table CLK Output Pin 5 Pin 4 Pin 3 Divider MDS 525-01/02/11/12 Q Integrated Circuit Systems, Inc. ● Output Frequency Range (MHz) VDD = 5 V VDD = 3 ...

Page 5

... Which Part to Use? The ICS525-01 is the original configurable clock. The ICS525-02 has a higher maximum output grequency and a slightly different set of output dividers. The ICS525-11 has the same divider set as the -01 but is optimized for low frequency operation. ...

Page 6

... Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the ICS525-01/02/11/12. These ratings, which are standard values for ICS 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 7

... ICS525-01, Note 2 One Sigma Clock Period Jitter, ICS525-01, Note 2 Absolute Clock Period Jitter, ICS525-02, Note 2 One Sigma Clock Period Jitter, ICS525-02, Note 2 Absolute Clock Period Jitter, ICS525-11, Note 2 One Sigma Clock Period Jitter, ICS525-11, Note 2 Absolute Clock Period Jitter, ICS525-12, Note 2 ...

Page 8

... α aaa *For reference only. Controlling dimensions in mm SEATING PLANE aaa C 8 525 Race Street, San Jose, CA 95126 ICS525-01/02/11/12 User Configurable Clock Millimeters Inches* Min Max Min Max 1.35 1.75 .053 .069 0.10 0.25 .0040 .010 -- 1.50 -- .059 0.20 0.30 .008 ...

Page 9

... ICS525R-02IT ICS525R-02I ICS525R-02ILF ICS525R-02ILF ICS525R-02ILFT ICS525R-02ILF ICS525R-11 ICS525R-11 ICS525R-11T ICS525R-11 ICS525R-11LF ICS525R-11LF ICS525R-11LFT ICS525R-11LF ICS525RI-11 ICS525RI-11 ICS525RI-11T ICS525RI-11 ICS525RI-11LF ICS525RI-11LF ICS525RI-11LFT ICS525RI-11LF ICS525RI-12 ICS525RI-12 ICS525RI-12T ICS525RI-12 ICS525RI-12LF ICS525RI-12LF ICS525RI12LFT ICS525RI-12LF Parts that are ordered with a "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant. ...

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