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OQ2538HP;
OQ2538U
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Product INFOrmation page
Information as of 2001-06-08
OQ2538HP; OQ2538U; SDH/SONET STM16/OC48 main amplifiers
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Description
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The OQ2538HP is a limiting amplifier IC intended for use as the main amplifier in 2.5 Gbits/s Non-Return
to Zero (NRZ) transmission systems (SDH/SONET).
Comprised of four amplifier stages with a total gain of 48.5 dB, it provides for a wide input signal dynamic
range at a constant CML-compatible output level.
Two level-detection circuits are provided for monitoring AGC and LOS input signal levels. An internal
automatic offset compensation circuit eliminates offset in the amplifier chain.
Features
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Differential 100 Ohm outputs for direct connection to Current-Mode Logic (CML) inputs
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Wide bandwidth (3 GHz)
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48.5 dB limiting gain
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Noise figure typically 11 dB
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Automatic offset compensation
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Input level-detection circuits for Automatic Gain Control (AGC) and Loss Of Signal (LOS) detection
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Low power dissipation (typically 270 mW)
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Single -4.5 V supply voltage
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Low cost LQFP48 plastic package.
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Applications
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Main amplifier in Synchronous Digital Hierarchy (SDH) and Synchronous Optical Network
(SONET) systems for short, medium and long haul optical transmission
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Level detector for laser diode control loops
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Wideband RF gain block with internal level detectors.
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Datasheet
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Page
count
File
size
(kB)
Datasheet
OQ2538HP;
OQ2538U
SDH/SONET
STM16/OC48 main
amplifiers
29-Sep-00
Product
Specification
28
142
PDF
Philips Semiconductors: Product information on OQ2538HP; OQ2538U, SDH/SONET STM16/OC48 main amplifiers
file:///E|/export/projects/bitting2/imaging/BITTING/mail_pdf/cpl_images/s1.html (1 of 2) [7/17/2001 5:14:19 PM]