ICS858012 Datasheet, PDF (1/15 Pages) Integrated Circuit Systems – LOW SKEW, 1-TO-2, DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS858012
LOW SKEW, 1-TO-2, DIFFERENTIAL-TO-
2.5V, 3.3V LVPECL FANOUT BUFFER
GENERAL DESCRIPTION
The ICS858012 is a high speed 1-to-2 Differential-
ICS
to-2.5V, 3.3V LVPECL Fanout Buffer and is a
HiPerClockS™ _{member of the HiPerClockS™ family of high}
performance clock solutions from ICS. The
ICS858012 is optimized for high speed and very
low output skew, making it suitable for use in demanding
applications such as SONET, 1 Gigabit and 10 Gigabit
Ethernet, and Fibre Channel. The internally terminated
differential input and VREF_AC pin allow other differential signal
families such as LVPECL, LVDS, LVHSTL and HCSL to be
easily interfaced to the input with minimal use of external
components. The ICS858012 is packaged in a small 3mm x
3mm 16-pin VFQFN package which makes it ideal for use in
space-constrained applications.
FEATURES
• Two differential LVPECL outputs
• One differential LVPECL clock input
• IN, nIN pair can accept the following differential input
levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL
• Output frequency: 2GHz (typical)
• Output skew: <15ps (typical)
• Part-to-part skew: TBD
• Additive phase jitter, RMS: TBD
• Propagation delay: 350ps (typical)
• Operating voltage supply range:
V_CC = 2.375V to 3.63V, V_EE = 0V
• -40°C to 85°C ambient operating temperature
• Availabe in both standard and lead-free RoHS compliant
packages
BLOCK DIAGRAM
IN
V_T
nIN
V
REF_AC
PIN ASSIGNMENT
Q0
nQ0
16 15 14 13
IN 1
12 Q0
VT 2
11 nQ0
VREF_AC 3
10 nQ1
nIN 4
9 Q1
5678
Q1
nQ1
ICS858012
16-Lead VFQFN
3mm x 3mm x 0.95 package body
K Package
Top View
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on
initial product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications
without notice.
858012AK
www.icst.com/products/hiperclocks.html
REV. A NOVEMBER 28, 2005
1