参数资料
型号: ICS889474AKLFT
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟及定时
英文描述: 889474 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC24
封装: 4 X 4 MM, 0.90 MM HEIGHT, ROHS COMPLIANT, MO-220, VFQFN-24
文件页数: 1/14页
文件大小: 295K
代理商: ICS889474AKLFT
2:1 LVDS MULTIPLEXER WITH 1:2 FANOUT
AND INTERNAL TERMINATION
ICS889474
IDT / ICS LVDS MULTIPLEXER
1
ICS889474AK REV. A MARCH 7, 2007
PRELIMINARY
GENERAL DESCRIPTION
The ICS889474 is a high speed 2-to-1 differential
multiplexer with integrated 2 output LVDS fanout
buffer and internal termination and is a member of
the HiPerClockS family of high perfor mance
clock solutions from IDT. The ICS889474 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 pins allow
other differential signal families such as LVPECL, LVDS,
LVHSTL and CML to be easily interfaced to the input with
minimal use of exter nal components. The ICS889474 is
packaged in a small 4mm x 4mm 24-pin VFQFN package which
makes it ideal for use in space-constrained applications.
FEATURES
Two differential LVDS outputs
INx, nINx pair can accept the following differential input levels:
LVPECL, LVDS, LVHSTL, CML
50Ω internal input termination to V
T
Output frequency: > 2GHz
Additive phase jitter, RMS: 0.06 (typical)
Output skew: 5ps (typical) design target
Propagation delay: 480ps (typical)
2.5V operating supply
-40°C to 85°C ambient operating temperature
Available in both standard and lead-free RoHS-complaint
packages
BLOCK DIAGRAM
PIN ASSIGNMENT
HiPerClockS
ICS
IN0
V
T0
nIN0
Q0
nQ0
Q1
nQ1
V
REF_AC0
ICS889474
24-Lead VFQFN, E-Pad
4mm x 4mm x 0.9mm package body
K Package
Top View
50
Ω
50
Ω
50
Ω
50
Ω
0
1
MUX
SEL
GND
nc
SEL
GND
VDD
V
DD
IN1
VT1
V
REF
_
AC
1
nIN1
V
DD
1
2
3
4
5
6
18
17
16
15
14
13
7
8
9 10 11 12
24 23 22 21 20 19
Q0
nQ0
V
DD
V
DD
Q1
nQ
1
VDD
nIN0
VREF_AC0
VT0
IN0
VDD
IN1
V
T1
nIN1
V
REF_AC1
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.
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