Microchip SY89112U Handleiding


Lees hieronder de 📖 handleiding in het Nederlandse voor Microchip SY89112U (14 pagina's) in de categorie Niet gecategoriseerd. Deze handleiding was nuttig voor 36 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

Pagina 1/14
SY89112U
2.5/3.3V Low-Jitter, Low-Skew 1:12 LVPECL
Fanout Buer with 2:1 Input MUX and
Internal Termination
Micrel Inc. • 2180 Fortune Drive Jose, CA 95131 • USA • tel +1 (408) 944 0800 • fax + 1 (408) 474 1000 • San - - http://www.micrel.com
April 8, 2014
0 -6.0 40814
hbwhelp@micrel.com or (408) 955-1690
General Description
The SY89112U is a low-jitter, low-skew, high-speed
LVPECL 1:12 dierential fanout buer optimized for
precision telecom and enterprise server distribution
applications. The input includes a 2:1 MUX for clock
switchover application. Unlike other multiplexers, this input
includes a unique isolation design to minimize channel- -to
channel crosstalk. The SY89112U distributes clock
frequencies from DC to >2GHz guaranteed over
temperature and voltage. The SY89112U incorporates a
synchronous output enable (EN) so that the outputs will
only be enabled/disabled when they are already in the
LOW state. This reduces the chance of generating “runt”
clock pulses.
The SY89112U differential input includes Micrel’s unique,
patent-pending 3-pin input termination architecture that
directly interfaces to any dierential signal (AC- or DC-
coupled) as small as 100mV (200mVpp) without any level
shifting or termination resistor networks in the signal path.
For AC-coupled input interface, an on-board output
reference voltage (VREF-AC) is provided to bias the
center-tap (VT) pin. The outputs are 800mV, 100K-
compatible LVPECL with fast rise/fall times guaranteed to
be less than 220ps.
The SY89112U operates from a 2.5V ±5% or 3.3V ±10%
supply and is guaranteed over the full industrial
temperature range of 40°C to +85°C. The SY89112U is
part of Micrel’s high-speed, Precision Edge® product line.
Datasheets and support documentation are available on
Micrel’s web site at: . www.micrel.com
Features
Selects between 1 of 2 inputs, and provides 12
precision, low skew LVPECL output copies
Guaranteed AC performance over temperature and
voltage:
DC to >2GHz throughput
<550ps propagation delay CLK- -to Q
<220ps rise/fall time
<25ps output- -output skewto
Ultra-low jitter design:
50fsRMS phase jitter (typ.)
<0.7psRMS crosstalk induced jitter
Unique, patent-pending input termination and VT pin
accepts DC-coupled and AC-coupled dierential inputs
Unique, patent-pending 2:1 input MUX provides superior
isolation to minimize channel- -channel crosstalkto
800mV, 100K LVPECL output swing
Power supply 2.5V +5% or 3.3V +10%
Industrial temperature range 40°C to +85°C
Available in 44-pin (7mm x 7mm) QFN package
Applications
Multi-processor server
SONET/SDH clock/data distribution
Fibre Channel distribution
Gigabit Ethernet clock distribution
Precision Edge is a registered trademark of Micrel, Inc.
Micrel, Inc.
SY89112U
April 8, 2014
0 -6.0 40814
hbwhelp@micrel.com or (408) 955-1690
Functional Block Diagram
Micrel, Inc.
SY89112U
April 8, 2014
0 -6.0 40814
hbwhelp@micrel.com or (408) 955-1690
Ordering Information
Part Number( )1
Package Type
Operating Range
Package Marking
Lead Finish
SY89112UMI
QFN- 44
Industrial
SY89112U
Sn Pb-
SY89112UMITR( )2
QFN- 44
Industrial
SY89112U
Sn Pb-
SY89112UMY
QFN- 44
Industrial
SY89112U with
Pb-Free bar-line indicator
Matte- Sn
Pb-Free
SY89112UMYTR( )2
QFN- 44
Industrial
SY89112U with
Pb-Free bar-line indicator
Matte- Sn
Pb-Free
Notes:
1. Contact factory for die availability. Dice are guaranteed at T
A = 25°C, DC Electricals only.
2. Tape and Reel.
Pin Configuration
44-Pin QFN


Product specificaties

Merk: Microchip
Categorie: Niet gecategoriseerd
Model: SY89112U

Heb je hulp nodig?

Als je hulp nodig hebt met Microchip SY89112U stel dan hieronder een vraag en andere gebruikers zullen je antwoorden




Handleiding Niet gecategoriseerd Microchip

Handleiding Niet gecategoriseerd

Nieuwste handleidingen voor Niet gecategoriseerd