DatasheetsPDF.com

SY88903AL

Micrel Semiconductor
Part Number SY88903AL
Manufacturer Micrel Semiconductor
Description PECL High-Sensitivity Limiting Post Amplifier
Published May 2, 2007
Detailed Description SY88903AL 3.3V, Burst Mode 1.25Gbps PECL HighSensitivity Limiting Post Amplifier with TTL Loss-of-Signal General Descri...
Datasheet PDF File SY88903AL PDF File

SY88903AL
SY88903AL

Overview
SY88903AL 3.
3V, Burst Mode 1.
25Gbps PECL HighSensitivity Limiting Post Amplifier with TTL Loss-of-Signal General Description Features The SY88903AL, burst mode, high-sensitivity limiting • Single 3.
3V power supply post amplifier is designed for use in fiber-optic receivers, • Fast LOS release/assert (<500ns) time for PON specially optimized for passive optical networks (PONs).
applications The device connects to typical transimpedance • 622Mbps to 1.
25Gbps operation amplifiers (TIAs).
The linear signal output from TIAs can • Low-noise PECL data outputs contain significant amounts of noise and may vary in • High gain LOS amplitude over time.
The SY88903AL quantizes these signals and outputs PECL level waveforms.
• Chatter-free Open-Collector TTL signal detect (LOS) output with internal 4.
75kΩ pull-up resistor The SY88903AL operates from a single +3.
3V power supply, over temperatures ranging from –40oC to +85oC.
• TTL /EN input Signals with data rates from 622Mbps up to 1.
25Gbps, • Programmable LOS level set (LOSLVL) and as small as 5mVpp, can be amplified to drive • Available in a tiny 10-pin MSOP package devices with PECL inputs.
The SY88903AL generates a Loss-of-Signal (LOS) Applications open-collector TTL output.
A programmable Loss-of• GPON/GEPON/EPON Signal level set pin (LOSLVL) sets the sensitivity of the input amplitude detection.
LOS asserts high if the input • Gigabit Ethernet, 1062Mbps Fibre Channel amplitude falls below the threshold set by LOSLVL and • OC-12/24 SONET/SDH www.
DataSheet4U.
com de-asserts low otherwise.
The enable bar input (/EN) • Low-gain TIA interface de-asserts the true output signal without removing the • High-gain line driver and line receiver input signal.
The LOS output can be fed back to the /EN input to maintain output stability under a loss-of-signal Markets condition.
Typically, 3.
4dB LOS hysteresis is provided to prevent chattering.
• FTTH/FTTP All support documentation can be found on Micrel’s web • Datacom/telecom site at: ...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)