Integrated
Circuit
Systems, Inc.
ICS9112-16
Low Skew Output Buffer
General Description
The
ICS9112-16
is a high performance, low skew, low jitter
clock driver. It uses a phase lock loop (PLL) technology to
align, in both phase and frequency, the REF input with the
CLKOUT signal. It is designed to distribute high speed
clocks in PC systems operating at speeds from 25 to
133 MHz.
ICS9112-16
is a zero delay buffer that provides
synchronization between the input and output. The
synchronization is established via CLKOUT feed back to the
input of the PLL. Since the skew between the input and
output is less than +/- 350 pS, the part acts as a zero delay
buffer.
The
ICS9112-16
comes in an eight pin 150 mil SOIC or 173
mil TSSOP package. It has five output clocks. In the absence
of REF input, will be in the power down mode. In this mode,
the PLL is turned off and the output buffers are pulled low.
Power down mode provides the lowest power consumption
for a standby condition.
Features
•
•
•
•
•
•
•
•
Zero input - output delay
Frequency range 25 - 133 MHz (3.3V)
High loop filter bandwidth ideal for Spread
Spectrum applications.
Less than 200 ps Jitter between outputs
Skew controlled outputs
Skew less than 250 ps between outputs
Available in 8 pin 150 mil SOIC
or 173 mil TSSOP package.
3.3V ±10% operation
Block Diagram
Pin Configuration
8 pin SOIC, TSSOP
9112-16 Rev F 10/20/00
ICS reserves the right to make changes in the device data identified in
this publication without further notice. ICS advises its customers to
obtain the latest version of all device data to verify that any
information being relied upon by the customer is current and accurate.
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
