SY55859L Datasheet, PDF (1/9 Pages) Micrel Semiconductor – 3.3V, 2.7Gbps DUAL 2X2 CROSSPOINT SWITCH

Micrel, Inc.
3.3V, 2.7Gbps
DUAL 2X2 CROSSPOINT SWITCH
SuperLite™
Super^SL^Yit⁵e⁵™^859L
SY55859L
FEATURES
s Pin-for-pin, plug-in compatible to the MAX3840
s Supply voltage operation: +3.3V ±10%
s Low jitter:
• 2ps_RMS random jitter
• 5ps_PP deterministic jitter
s Power saving output disable feature
s 15ps channel-to-channel skew
s Fast CML outputs: <100ps t_r /t_f
s Available in a small (5mm x 5mm) 32-pin EPAD-
MLF™ package
APPLICATIONS
s SONET/SDH optical transport
s High-speed backplane redundancy
s Add-drop multiplexers
CROSS REFERENCE TABLE
Micrel Semiconductor
SY55859LMI
Maxim
MAX3840EGJ
SuperLite™
DESCRIPTION
The SY55859L is a dual CML 2x2 crosspoint switch
optimized for high-speed data and/or clock applications (up
to 2.7Gbps or 2.7GHz) where low jitter and skew are critical.
This device is pin-for-pin, plug-in compatible to the MAX3840.
Each 2x2 of the SY55859L routes any input to any output,
and thus can distribute or multiplex a clock or data stream.
The I/O architecture is fully differential and CML compatible.
Both inputs and outputs are optimized for 50Ω transmission
lines. The inputs (DA 0-1 and DB 0-1) are internally
terminated with 50Ω, thus eliminating external termination,
and the outputs (QA0-1 and QB0-1) include 50Ω source
termination. Furthermore, a power-saving output enable
feature is provided which powers-down unused outputs.
The SY5859L operates from a +3.3V ±10% supply, and
is guaranteed over the industrial (–40°C to +85°C)
temperature range. It is available in a 32-pin (5mm x 5mm)
MLF™ package.
For applications that require either lower voltage operation
or a more flexible input interface (for applications such as
AC–coupled LVPECL inputs), consider the SY55858U.
TYPICAL APPLICATIONS CIRCUIT
TYPICAL PERFORMANCE
Limiting
Amplifier
Limiting
Amplifier
Data
CDR
Clock
Data
SY55859L
CDR
Clock
Laser
Driver
Laser
Driver
SuperLite is a trademarks of Micrel, Inc.
MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.
M9999-110705
[e-mail] or [phone]
1
TIME (50ps/div.)
2.7Gbps, 2²³ – 1 PRBS
Rev.: C Amendment: /0
Issue Date: November 2005