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SY89850U_10 Datasheet, PDF (1/10 Pages) Micrel Semiconductor – Precision Low-Power LVPECL Line | |||
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SY89850U
Precision Low-Power LVPECL Line
Driver/Receiver with Internal Termination
General Description
The SY89850U is a 2.5V/3.3V precision, high-speed,
differential receiver capable of handling clocks up to
4GHz and data streams up to 3.2Gbps.
The differential input includes Micrel's unique, 3-pin
input termination architecture that allows users to
interface to any differential signal (AC or DC-coupled)
as small as 100mV (200mVPP) without any level
shifting or termination resistor networks in the signal
path. The outputs are 800mV LVPECL, with extremely
fast rise/fall times guaranteed to be less than 160ps.
The SY89850U operates from a 2.5V ±5% supply or a
3.3V ±10% supply and is guaranteed over the full
industrial temperature range of â40°C to +85°C. The
SY89850U 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.
Typical Application
Features
Precision Edge®
⢠Guaranteed AC performance over temperature
and supply voltage:
â DC- to > 3.2Gbps data rate throughput
â 4GHz clock fMAX (typ.)
â <280ps In-to-Out tpd
â <160ps tr/tf
⢠Low power: 50mW (2.5V typ.)
⢠Ultra-low jitter design:
â <1psRMS random jitter
â <10psPP deterministic jitter
â <10psPP total jitter (clock)
⢠Unique input termination and VT pin accepts DC-
and AC-coupled inputs (CML, PECL, LVDS)
⢠Typical 800mV (100k) LVPECL Output Swing
⢠Power supply 2.5V ±5% or 3.3V ±10%
⢠Industrial temperature range â40°C to +85°C
⢠Available in ultra-small (2mm x 2mm) 8-pin DFN
package
Applications
⢠Backplane buffering
⢠OC-12 to OC-192 SONET/SDN clock/data
distribution
⢠All Gigabit Ethernet clock or data distribution
⢠Fibre Channel distribution
Markets
⢠LAN/WAN
⢠Enterprise servers
⢠ATE
⢠Test and measurement
Precision Edge is a registered trademark of Micrel, Inc.
August 2007
M9999-083007-B
hbwhelp@micrel.com or (408) 955-1690
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