Microchip SY58610U Bedienungsanleitung


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SY58610U
3.2Gbps Precision, LVPECL 2:1 MUX with
Internal Termination and Fail Safe Input
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944 0800 • f- ax + 1 (408) 474 000 • http://www.micrel.com-1
August 2007 M9999 082907- -C
hbwhelp@micrel.com -or (408) 955 1690
General Description
The SY58610U is a 2.5/3.3V, high speed, fully -
differential LVPECL 2:1 MUX capable of processing
clock signals up to 2.5GHz and data patterns up to
3.2Gbps. The SY58610U is optimized to provide a
buffered output of the selected input with less than
10pspp total jitter.
The differential input includes Micrel’s unique, 3-pin
input termination architecture that interfaces to LVPECL,
LVDS or CML differential signals, (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 applications, an integrated
reference voltage (VREF-AC) is provided to bias the VT pin.
The outputs are 800mV LVPECL, with extremely fast
rise/fall times guaranteed to be less than 130ps.
The SY58610U operates from a 2.5V ±5% supply or
3.3V ±10% supply and is guaranteed over the full
industrial temperature range ( 40°C to +85°C). For
applications that require CML or LVDS outputs, consider
Micrel’s SY58609U and SY58611U, 2:1 MUX with
400mV and 325mV output swings, respectively. The
SY58610U is part of Micrel’s high-speed, Precision
Edge® product line.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Functional Block Diagram
Precision Edge®
Features
Pr ecision 800mV LVPECL 2:1 MUX
Guaranteed AC performance over temperature and
voltage:
-DC to > 3.2Gbps throughput
- -<370ps propagation delay (IN to Q)
<130ps rise/fall times
Fail Safe Input
Prevents outputs from oscillating when input is
invalid
Unique, patented MUX input isolation design
minimizes adjacent channel crosstalk
Ultra-low jitter design
– <1psRMS - -cycle to cycle jitter
– <10psPP total jitter
– <1psRMS random jitter
– <10psPP deterministic jitter
High-speed LVPECL outputs
2.5V ±5% or 3.3V ±10% power supply operation
Industrial temperature range: –40°C to +85°C
Available in 16-pin (3mm x 3mm) QFN package
Applications
All SONET clock distribution
Fibre Channel clock and data distribution
Gigabit Ethernet clock and data distribution
Backplane distribution.
Markets
Storage
ATE
Test and measurement
Enterprise networking equipment
High-end servers
Precisi Edge is egister trademark f icrel, Inc.on a r ed o M


Produktspezifikationen

Marke: Microchip
Kategorie: Nicht kategorisiert
Modell: SY58610U

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