SY58013U_11 Datasheet, PDF (1/10 Pages) Micrel Semiconductor – 6GHz, 1:2 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS

Micrel, Inc.
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FEATURES
■ Precision 1:2, 400mV LVPECL fanout buffer
■ Low jitter performance:
• 55fs_RMS phase jitter (typ)
■ Accepts an input signal as low as 100mV
■ Guaranteed AC performance over temperature and
voltage:
• > 6GHz f_MAX clock
• < 80ps t_r/t_f times
• < 250ps t_pd
• < 15ps max. skew
■ Unique input termination and V_T pin accepts
DC-coupled and AC-coupled differential
inputs: LVPECL, LVDS and CML
■ 400mV LVPECL compatible outputs
■ Power supply 2.5V ±5% and 3.3V ±10%
■ –40°C to +85°C temperature range
■ Available in 16-pin (3mm x 3mm) QFN package
APPLICATIONS
■ All SONET and All GigE clock distribution
■ Fibre Channel clock and data distribution
■ Backplanes
■ Data distribution: OC-48, OC-48+FEC, XAUI
■ High-end, low-skew, multiprocessor synchronous
clock distribution
DESCRIPTION
Precision Edge^®
The SY58013U is a 2.5V/3.3V precision, high-speed, fully
differential 1:2 LVPECL fanout buffer. Optimized to provide
two identical output copies with less than 15ps of skew and
only 55fs_RMS phase jitter, the SY58013U can process clock
signals as fast as 6GHz or data patterns up to 10.7Gbps.
The differential input includes Micrel’s unique, 3-pin input
termination architecture that interfaces to LVPECL, LVDS,
and CML differential signals, (AC- or DC-coupled) as small
as 100mV without any level-shifting or termination resistor
networks in the signal path. For AC-coupled input interface
applications, an on-board output reference voltage (V_REF-
AC^{) is provided to bias the V}T ^{pin. The outputs are 400mV}
LVPECL compatible, with extremely fast rise/fall times
guaranteed to be less than 80ps.
The SY58013U 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 greater output swing or CML compatible outputs,
consider the SY58012U 1:2 fanout buffer with 800mV
LVPECL outputs, or the SY58011U 1:2 fanout buffer with
400mV CML outputs. The SY58013U 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
TYPICAL Performance
Precison Edge is a registered trademark of Micrel, Inc.
M9999-063010
[e-mail] or [phone]
1
2GHz with 100mV Input
Rev.: F
Amendment: /0
Issue Date: November 2011