SY54023R Datasheet, PDF (1/15 Pages) Micrel Semiconductor – Low Voltage 1.2V/1.8V CML 2x2 Crosspoint Switch with Fail-Safe Inputs, 3.2Gbps, 2.5GHz

SY54023R
Low Voltage 1.2V/1.8V CML 2x2 Crosspoint
Switch with Fail-Safe Inputs, 3.2Gbps,
2.5GHz
General Description
The SY54023R is a fully differential, low voltage
1.2V/1.8V CML 2x2 Crosspoint Switch with Fail Safe
Inputs. The SY54023R can process clock signals as
fast as 2.5GHz or data patterns up to 3.2Gbps.
The differential input includes Micrel’s unique, 3-pin
input termination architecture that interfaces to LVPECL,
LVDS or CML differential signals, (AC- or DC-coupled
from a 2.5V driver) as small as 100mV (200mV_PP)
without any level-shifting or termination resistor
networks in the signal path. For AC-coupled input
interface applications, an internal voltage reference is
provided to bias the V_T pin. The outputs are CML, with
extremely fast rise/fall times guaranteed to be less than
95ps.
The SY54023R operates from a 2.5V ±5% core supply
and a 1.8V or 1.2V ±5% output supply and is
guaranteed over the full industrial temperature range
(–40°C to +85°C). The SY54023R 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
Features
Precision Edge^®
∑ 1.2V/1.8V CML 2x2 Crosspoint Switch with Fail Safe
Inputs
∑ Guaranteed AC performance over temperature and
voltage:
– DC-to- > 3.2Gbps throughput
– <400ps propagation delay (IN-to-Q)
– <15ps Output Skew
– <95ps rise/fall times
∑ Ultra-low jitter design
– <1ps_RMS cycle-to-cycle jitter
– <10ps_PP total jitter
– <1ps_RMS random jitter
– <10ps_PP deterministic jitter
∑ High-speed CML outputs
∑ 2.5V ±5% , 1.8/1.2V ±5% power supply operation
∑ Industrial temperature range: –40°C to +85°C
∑ Available in 16-pin (3mm x 3mm) MLF^® package
Applications
∑ Data Distribution: OC-48, OC-48+FEC
∑ SONET clock and data distribution
∑ Fibre Channel clock and data distribution
∑ Gigabit Ethernet clock and data distribution
Markets
∑ Storage
∑ ATE
∑ Test and measurement
∑ Enterprise networking equipment
∑ High-end servers
∑ Access
∑ Metro area network equipment
Precision Edge is a registered trademark of Micrel, Inc.
MLF and MicroLeadFrame are registered trademarks of Amkor Technology.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
March 2008
M9999-033108-A
[e-mail] or [phone]