SY88063AL Datasheet, PDF (1/11 Pages) Micrel Semiconductor – 3.3V, 12.5Gbps Limiting Post Amplifier with

SY88063AL
3.3V, 12.5Gbps Limiting Post Amplifier with
Automatic Digital Offset Correction
General Description
Features
The SY88063AL is a multi-rate limiting post amplifier
designed for fiber-optic transceivers applications up to
12.5Gbps. It features an automatic digital offset correction
function. The offset correction feature will automatically
counteract any inherent offset present in the input signal
and amplifier. The highly sensitive SY88063AL can amplify
input signals as low as 20mVpp at 12.5Gbps or 10mVpp at
10.3Gbps to differential CML output levels.
The SY88063AL generates a loss-of-signal (LOS) open-
collector TTL output. A programmable loss-of-signal level
set pin (LOSLVL) sets the sensitivity of the input amplitude
detection. LOS asserts high if the input amplitude falls
below the threshold set by LOSLVL and de-asserts low
otherwise. The enable input (/EN) de-asserts the true
output signal without removing the input signal. The LOS
output can be fed back to the /EN input to implement the
squelch function that maintains output stability under a
loss-of-signal condition.
The SY88063AL operates from a single +3.3V power
supply, over –40^oC to +85^oC, and is available in 3mm x
3mm 16-pin QFN package.
All support documentation can be found on Micrel’s web
site at: www.micrel.com.
• Up to 12.5Gbps operation
• Automatic Digital Offset Correction
• Programmable LOS level (LOSLVL)
• Squelching function to maintain output stability
• Low-noise CML data outputs
• TTL /EN input
• –40^oC to +85^oC Operation
• Small 3mm x 3mm QFN package
Applications
• 1x/2x/4x/8x Fibre Channel
• SR/LR SFP+ Optical Transceiver
• 10GPON ONU
• SONET/SDH:OC192 – STM64
Markets
• Datacom/telecom
• Optical transceiver
________________________________________________________________________________________________
Typical Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
September 2011
M9999-090911-B
[e-mail] or [phone]