ICS9112-18
Zero Delay, Low Skew Buffer
Description
The ICS9112-18 is a low jitter, low-skew, high
performance PLL based zero delay buffer for high
speed applications. Based on ICS’s proprietary low
jitter Phase Locked Loop (PLL) techniques, the
device provides eight low skew outputs at speeds
up to 160 MHz at 3.3 V. The ICS9112-18
includes a bank of four outputs running at 1X, and
another four outputs running at 1/2X. In the zero
delay mode, the rising edge of the input clock is
aligned with the rising edges of all eight outputs.
Compared to competitive CMOS devices, the
ICS9112-18 has the lowest jitter of all.
ICS manufactures the largest variety of clock
generators and buffers, and is the largest clock
supplier in the world.
Features
• Packaged in 16 pin narrow SOIC
• Zero input-output delay
• Four 1X outputs plus four half-X outputs
• Output to output skew is less than 250 ps
• Output clocks up to 160 MHz at 3.3 V
• Ability to generate 2X the input
• Full CMOS outputs with 18 mA output drive
capability at TTL levels at 3.3 V
• Spread Smart™ technology works with spread
spectrum clock generators
• Advanced, low power, sub-micron CMOS process
• 3.0 to 5.5 V operating voltage
Block Diagram
FBIN
CLKIN
PLL
Mux
CLKA1
CLKA2
CLKA3
CLKA4
÷2
CLKB1
CLKB2
S2, S1
2
CLKB3
Control
Logic
CLKB4
1
Revision 050400
Printed 11/15/00
Integrated Circuit Systems, Inc.• 525 Race Street • San Jose • CA • 95126 • (408)295-9800tel• www.icst.com
MDS 9112-18 F
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
