SY58052U_10 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – ULTRA-PRECISION CML DATA AND CLOCK SYNCHRONIZER W/ INTERNAL INPUT

Micrel, Inc.
ULTRA-PRECISION CML DATA AND
CLOCK SYNCHRONIZER W/ INTERNAL
INPUT AND OUTPUT TERMINATION
Precision Edge^®
Precision E^Sd^Yg⁵⁸e^0®52U
SY58052U
FEATURES
s Resynchronizes data to a reference clock
s Guaranteed AC performance over temperature and
voltage:
• DC-to > 10.7Gbps data rate throughput
• DC-to > 7GHz clock f_MAX
• < 190ps Any In-to-Out t_pd
• t_r / t_f < 60ps
s Ultra low-jitter design:
• < 1ps_RMS random jitter
• < 10ps_PP deterministic jitter
• < 10ps_PP total jitter (clock)
s Internal 50Ω input termination
s Unique input termination and V_T pin accepts DC-
and AC-coupled inputs (CML, PECL)
s Internal 50Ω output source termination
s 400mV CML output swing
s Power supply 2.5V ±5% or 3.3V ±10%
s –40°C to 85°C temperature range
s Available in a 16-pin (3mm × 3mm) MLF^® package
APPLICATIONS
s Data communication systems
s Serial OC-192, OC-192+FEC data-to-clock
realignment
s Parallel 10Gbps for OC768
s All SONET OC-3 — OC-768 applications
s All Fibre Channel applications
s All GigE applications
FUNCTIONAL BLOCK DIAGRAM
Precision Edge^®
DESCRIPTION
The SY58052U is an ultra-fast, precision, low jitter data-
to-clock resynchronizer with a guaranteed maximum data
and clock throughput of 10.7Gbps or 7GHz, respectively.
The SY58052U is an ideal solution for backplane retiming
or retiming after the data passes through long trace lengths.
Serial data comes into the data input, and the CML output
is synchronous to the input reference clock’s rising edge.
The SY58052U differential inputs include a unique,
internal termination design that allows access to the
termination network through a V_T pin. This feature allows
the device to easily interface 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 CML output is
optimized for 50Ω environments with internal 50Ω source
termination and a 400mV output swing.
The SY58052U operates from a 2.5V or 3.3V supply and
is guaranteed over the full industrial temperature range
(–40°C to +85°C). The SY58052U is part of a Micrel’s
Precision Edge^® product family.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
TYPICAL APPLICATION
DATA
50Ω
V_TD
50Ω
/DATA
CLK
50Ω
V_TCLK
50Ω
/CLK
DATA
/DATA
Q
/Q
CLK
/CLK
R
Data from
Backplane
(Uncertain timing)
Q
Clock from Backplane
/Q
DATA IN
/RESET
CLK
Q OUT
(Retimed)
AnyGate and Precision Edge are registered trademarks of Micrel, Inc.
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
M9999-082010
[e-mail] or [phone]
1
SY58052U
DATA
Q
CLK
Retimed
Data
Rev.: D Amendment: /0
Issue Date: August 2010