The ICS854S14I is a high speed 1-to-4 Differential-
to-LVDS Fanout Buffer and is a member of the
HiPerClockS™
HiPerClockS™ family of high performance clock
solutions from IDT. The ICS854S14I 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 V
REF
_
AC
pin allow
other differential signal families such as LVPECL, LVDS, and
SSTL to be easily interfaced to the input with minimal use of
external components. The device also has output enable pins
which may be useful for system test and debug purposes.
F
EATURES
•
Four differential LVDS outputs
•
IN, nIN pair can accept the following differential input levels:
LVPECL, LVDS, SSTL
•
50Ω internal input termination to V
T
•
Output frequency: 1.5GHz
•
Output skew: 30ps (typical)
•
Part-to-part skew: TBD
•
Additive phase jitter, RMS: 0.135ps (typical)
•
Propagation delay: 1.1ns (typical)
•
2.5V operating supply
•
-40°C to 85°C ambient operating temperature
•
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
IC
S
A
PPLICATIONS
:
•
Processor clock distribution
•
622MHz central office clock distribution
•
High speed network routing
•
Wireless basestations
•
Serdes LVPECL output to FPGA LVDS input translator
•
Fibre channel clock distribution
•
AMC clock driver for ATCA systems
•
Gigabit ethernet clock distibution
B
LOCK
D
IAGRAM
OE0
Q0
nQ0
OE1
IN
50Ω
P
IN
A
SSIGNMENT
GND
OE0
OE1
OE2
OE3
24 23 22 21 20 19
GND
Q0
nQ0
1
2
3
4
5
6
7
8
nIN
V
DD
18
17
16
15
14
13
9 10 11 12
V
REF
_
AC
GND
VT
IN
V
DD
V
DD
Q3
nQ3
nQ2
Q2
GND
Q1
nQ1
50Ω
nQ1
Q1
V
DD
V
T
nIN
OE2
Q2
V
REF_AC
OE3
Q3
nQ3
nQ2
ICS854S14I
24-Lead VFQFN
4mm x 4mm x 0.95 package body
K Package
Top View
The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization
and/or qualification. Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.