SY58040U Datasheet, PDF (1/11 Pages) Micrel Semiconductor – ULTRA PRECISION 4 X 4 CML SWITCH WITH INTERNAL I/O TERMINATION

Micrel
ULTRA PRECISION 4×4 CML
SWITCH WITH INTERNAL
I/O TERMINATION
Precision E^Sd^Yg⁵e⁸™^040U
SY58040U
FEATURES
s Provides crosspoint switching between any input
pair to any output pair
s Guaranteed AC performance over temperature and
voltage:
• DC to >5Gbps throughput
• <350ps propagation delay
• <60ps t_r / t_f times
• <25ps skew (output-to-output)
s Unique, patent-pending, channel-to-channel
isolation design provides superior crosstalk
performance
s Ultra-low jitter design:
• <1ps_rms random jitter
• <10ps_pp deterministic jitter
• <10ps_pp total jitter (clock)
• <0.7ps_rms crosstalk-induced jitter
s Unique, patent-pending, 50Ω input termination
extended CMVR, and VT pin accepts DC- and AC-
coupled differential inputs
s 400mV CML output swing
s 50Ω source terminated outputs minimize round-trip
reflections
s Power supply 2.5V ±5% or 3.3V ±10%
s –40°C to +85°C temperature range
s Available in 44-pin (7mm × 7mm) MLF™ package
Precision Edge™
DESCRIPTION
The SY58040U is a low jitter, low skew, high-speed 4×4
crosspoint switch optimized for precision telecom and
enterprise server/storage distribution applications. The
SY58040U distributes clock frequencies from DC to 4GHz,
and data rates to 5Gbps guaranteed over temperature and
voltage.
The SY58040U differential input includes Micrel’s unique,
3-pin input termination architecture that directly interfaces
to any differential signal (AC or DC-coupled) as small as
100mV (200mV_pp) without any level shifting or termination
resistor networks in the signal path. The outputs are 50Ω
source-terminated CML with extremely fast rise/fall times
guaranteed to be less than 60ps.
The SY58040U features a patent-pending isolation design
that significantly improves on channel-to-channel crosstalk
performance.
The SY58040U 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 SY58040U is part of Micrel’s
high-speed, Precision Edge™ product line.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
APPLICATIONS
s Data communication systems
s All SONET/SDH data/clock applications
s All Fibre Channel applications
s All Gigabit Ethernet applications
Precision Edge is a trademark of Micrel, Inc.
MLF and MicroLeadFrame are trademarks of Amkor Technology, Inc.
M9999-072904
[e-mail] or [phone]
1
Rev.: A Amendment: /0
Issue Date: July 2004