SY58013U_07 Datasheet, PDF (1/9 Pages) Micrel Semiconductor – 6GHz, 1:2 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS and INTERNAL INPUT TERMINATION

Micrel, Inc.
6GHz, 1:2 FANOUT BUFFER/TRANSLATOR
Precision Edge^®
Precision E^SYd⁵g⁸e^01®3U
w/400mV LVPECL OUTPUTS and INTERNAL
SY58013U
INPUT TERMINATION
FEATURES
s Precision 1:2, 400mV LVPECL fanout buffer
s Guaranteed AC performance over temperature and
voltage:
• > 6GHz f_MAX clock
• < 80ps t_r/t_f times
• < 250ps t_pd
• < 15ps max. skew
s Low jitter performance:
• < 10ps_PP total jitter (clock)
• < 1ps_RMS random jitter (data)
• < 10ps_PP deterministic jitter (data)
s Accepts an input signal as low as 100mV
s Unique input termination and V_T pin accepts DC-
coupled and AC-coupled differential
inputs: LVPECL, LVDS and CML
s 400mV LVPECL compatible outputs
s Power supply 2.5V ±5% and 3.3V ±10%
s –40°C to +85°C temperature range
s Available in 16-pin (3mm × 3mm) MLF^® package
APPLICATIONS
s All SONET and All GigE clock distribution
s Fibre Channel clock and data distribution
s Backplanes
s Data distribution: OC-48, OC-48+FEC, XAUI
s High-end, low-skew, multiprocessor synchronous
clock distribution
Precision Edge^®
DESCRIPTION
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
less than 10ps_(pk-pk) total 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
Q0
IN
50Ω
/Q0
V_T
50Ω
/IN
Q1
/Q1
V_REF-AC
TYPICAL PERFORMANCE
2GHz Output
V_CC = 3.3V
Precison Edge is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
M9999-020207
[e-mail] or [phone]
1
TIME (70ps/div.)
2GHz with 100mV Input
Rev.: D Amendment: /0
Issue Date: February 2007