SY58037U_08 Datasheet, PDF (1/11 Pages) Micrel Semiconductor – ULTRA PRECISION 8:1 MUX WITH INTERNAL TERMINATION AND 1:2 CML FANOUT BUFFER

Micrel, IIIIInc.
ULTRA PRECISION 8:1 MUX
WITH INTERNAL TERMINATION
AND 1:2 CML FANOUT BUFFER
Precision Edge^®
Precision E^Sd^Y5g⁸e^0®37U
SY58037U
FEATURES
s Selects between 1 of 8 inputs, and provides two
precision, low skew CML output copies
s Guaranteed AC performance over temperature and
voltage:
• DC to 5Gbps throughput
• <450ps propagation delay IN-to-Q (V_IN ≥ 300mV)
• <70ps t_r / t_f time
• <15ps 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, input termination and VT
pin accepts DC- and AC-coupled inputs (CML, PECL,
LVDS)
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 x 7mm) MLF^® package
DESCRIPTION
Precision Edge^®
The SY58037U is a low jitter, low skew, high-speed 8:1
multiplexer with a 1:2 differential fanout buffer optimized for
precision telecom and enterprise server distribution
applications. The SY58037U distributes clock frequencies
from DC to 4GHz and data rates to 5Gpbs guaranteed over
temperature and voltage.
The SY58037U 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 (200mVpp) without any level shifting or termination
resistor networks in the signal path. The outputs are 50Ω
source-terminated CML with extremely fast rise/fall time
guaranteed to be less than 70ps.
The SY58037U features a patent-pending isolation design
that significantly improves channel-to-channel crosstalk
performance.
The SY58037U 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 SY58037U 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.
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 registered trademark of Micrel, Inc.
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
M9999-010708
[e-mail] or [phone]
1
Rev.: E Amendment: /0
Issue Date: January 2008