Integrated
Circuit
Systems, Inc.
General Description
Features
ICS9107C-21
ICS9107C-22
Block Diagram
Frequency Generator for Fibre Channel Systems
Applications
9107-21 /22 Rev C 9/14/99
The ICS9107C-21 and ICS9107C-22 are high-speed clock
generators designed to support fibre channel system
requirements. The ICS9107C-21 generates a single copy of
the 106.25 MHz from a 17 MHz crystal. The ICS9107C-22
provides a second copy of the 106.25 MHz clock with output
skew less than 100ps.
An exact frequency multiplying ratio ensures better than
100 ppm frequency accuracy using a standard AT crystal
with external load capacitors (typically 33pF5% for an
18pF load crystal). Achieving 100 ppm over four years
requires the crystal to have a 20 ppm initial accuracy, 30
ppm temperature and 5 ppm/year aging coefficients.
Generates one or two 106.25 MHz clocks from a 17
MHz crystal
Less than 60ps one sigma jitter
Less than 200ps absolute jitter
Output skew less than 100ps on two channel
version (-22)
Rise/fall times less than 4ns driving 15pF
On-chip loop filter components
5.5V supply range
8-pin, 150-mil SOIC package
Specifically designed to support the high-speed
clocking requirements of fibre channel systems
PRODUCT PREVIEW documents contain information on new
products in the sampling or preproduction phase of development.
Characteristic data and other specifications are subject to change
without notice.
Preliminary Product Preview
2
ICS9107C-21
ICS9107C-22
Preliminary Product Preview
Pin Descriptions
Pin Configurations
8-Pin SOIC
Functionality
8-Pin SOIC
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ICS9107C-21
ICS9107C-22
Preliminary Product Preview
Note 1:
Parameter is guaranteed by design and characterization. Not 100% tested in production.
Electrical Characteristics at 5.0V
Operating V
DD
= +4.5V to +5.5V; T
A
=0C to 70C unless otherwise stated
Absolute Maximum Ratings
AVDD, VDD referenced to GND . . . . . . . . . . . . . . . 7V
Operating temperature under bias. . . . . . . . . . . . . . . . 0C to +70C
Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . -65C to +150C
Voltage on I/O pins referenced to GND. . . . . . . . . . . GND -0.5V to VDD +0.5V
Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 Watts
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device.
This is a stress rating only and functional operation of the device at these or any other conditions above
those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect product reliability.
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ICS9107C-21
ICS9107C-22
Preliminary Product Preview
Ordering Information
ICS9107C-21CS08 or ICS9107C-22CS08
Example:
8-Pin Plastic SOIC Package
Lead Count & Package Width
Lead Count=1, 2 or 3 digits
W=.3 SOIC or .6 DIP; None=Standard Width
Package Type
S=SOIC
Pattern Number (2 or 3 digit number for parts with ROM code patterns)
Device Type (consists of 3 or 4 digit numbers)
Prefix
ICS, AV=Standard Device
XXX XXX PPP S X#W
PRODUCT PREVIEW documents contain information on new
products in the sampling or preproduction phase of development.
Characteristic data and other specifications are subject to change
without notice.
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