SY58026U Datasheet, PDF (1/11 Pages) Micrel Semiconductor – ULTRA PRECISION DUAL 2:1 LVPECL MUX WITH INTERNAL TERMINATION

Micrel, Inc.
ULTRA PRECISION DUAL 2:1 LVPECL
MUX WITH INTERNAL TERMINATION
Precision Edge^®
Precision E^Sd^Y5g⁸e^0®26U
SY58026U
FEATURES
■ Two independent differential 2:1 multiplexers
■ Guaranteed AC performance over temperature and
voltage:
• DC-to >5Gbps data rate throughput
• <310ps IN-to-Out t_pd
• <110ps t_r / t_f
■ Unique, patent-pending input isolation design
minimizes crosstalk
■ Ultra-low jitter design:
• <1ps_RMS random jitter
• <10ps_PP deterministic jitter
• <10ps_PP total jitter (clock)
• <0.7ps_RMS crosstalk-induced jitter
■ Unique, patent-pending 50Ω input termination and
VT pin accepts DC-coupled and AC-coupled inputs
(CML, LVDS, PECL)
■ 800mV LVPECL output swing
■ Power supply 2.5V ±5% or 3.3V ±10%
■ –40°C to +85°C temperature range
■ Available in 32-pin (5mm × 5mm) MLF^® package
APPLICATIONS
■ Data communication systems
■ SONET applications
■ Fibre Channel applications
■ GigE applications
Precision Edge^®
DESCRIPTION
The SY58026U features two ultra-fast, low jitter 2:1
differential muxes with a guaranteed maximum data
throughput of 5Gbps.
The SY58026U differential inputs include a unique
internal termination design that allows access to the
termination network through a VT pin. The device easily
interfaces to different logic standards, both AC- and DC-
coupled, without external resistor-bias and termination
networks. The result is a clean, stub-free, low jitter interface
solution. The differential 800mV LVPECL outputs have
extremely fast rise/fall times guaranteed to be less than
110ps.
The SY58026U operates from a 2.5V or 3.3V supply,
and is guaranteed over the full industrial temperature range
(–40°C to +85°C). The SY58026U is part of Micrel’s Precision
Edge^® product family.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
FUNCTIONAL BLOCK DIAGRAM
INA0
50Ω
V_TA0
50Ω
/INA0
V_REF-ACA0
INA1
50Ω
V_TA1
50Ω
/INA1
V_REF-ACA1
SELA
(TTL/CMOS)
0
MUX A
1S
QA
/QA
INB0
50Ω
V_TB0
50Ω
/INB0
V_REF-ACB0
INB1
50Ω
V_TB1
50Ω
/INB1
V_REF-ACB1
SELB
(TTL/CMOS)
AnyGate and Precision Edge are registered trademarks of Micrel, Inc.
MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.
M9999-020207
[e-mail] or [phone]
1
0
QB
MUX B
/QB
1S
Rev.: D Amendment: /0
Issue Date: February 2007