SY58018U Datasheet, PDF (1/11 Pages) Micrel Semiconductor – ULTRA-PRECISION DIFFERENTIAL LVPECL 2:1 MUX with INTERNAL TERMINATION

Micrel
ULTRA-PRECISION
DIFFERENTIAL LVPECL 2:1 MUX
with INTERNAL TERMINATION
Precision Edge™
Precision E^Sd^Yg⁵e⁸™^018U
SY58018U
FEATURES
s Guaranteed AC performance over temperature and
voltage:
• DC to 5Gbps data throughput
• DC to > 4GHz f_MAX (clock)
• < 260ps propagation delay
• < 110ps t_r / t_f times
s Ultra-low crosstalk-induced jitter: 0.7ps_rms
s Ultra-low jitter design:
• < 1ps_rms random jitter
• < 10ps_p-p deterministic jitter
• < 10ps_p-p total jitter (clock)
s Unique input termination and V_T pin accepts DC-
coupled and AC-coupled inputs (CML, PECL, LVDS)
s 800mV (100k) LVPECL output swing
s Power supply 2.5V ±5% or 3.3V ±10%
s –40°C to +85°C temperature range
s Available in 16-pin (3mm × 3mm) MLF™ package
APPLICATIONS
s Redundant clock distribution
s SONET/SDH clock/data distribution
s Loopback
s Fibre Channel distribution
Precision Edge™
DESCRIPTION
The SY58018U is a 2.5V/3.3V precision, high-speed, 2:1
differential MUX capable of handling clocks up to 4GHz
and data up to 5Gbps.
The differential input includes Micrel’s unique, 3-pin input
termination architecture that allows customers to interface
to any differential signal (AC- or DC-coupled) as small as
100mV without any level shifting or termination resistor
networks in the signal path. The outputs are 800mV, 100k
compatible, LVPECL, with extremely fast rise/fall times
guaranteed to be less than 110ps.
The SY58018U operates from a 2.5V ±5% supply or a
3.3V ±10% supply and is guaranteed over the full industrial
temperature range of –40°C to +85°C. For applications that
require CML outputs, consider the SY58017U or for 400mV
LVPECL outputs the SY58019U. The SY58018U is part of
Micrel’s high-speed, Precision Edge™ product line.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
FUNCTIONAL BLOCK DIAGRAM
TYPICAL PERFORMANCE
IN0
50Ω
V_T0
50Ω
/IN0
IN1
50Ω
V_T1
50Ω
/IN1
SEL
(TTL/CMOS)
0
Q0
MUX
/Q0
1S
Precision Edge is a trademark of Micrel, Inc.
AnyGate is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.
M0643-012704
1
5Gbps Output
TIME (25ps/div.)
(2²³â€”1PRBS)
Rev.: A Amendment: /0
Issue Date: Jan. 2004