OQ2538U Overview
OQ2538U GENERAL DESCRIPTION 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). prised 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-patible output level. Two level-detection circuits are provided for monitoring AGC and LOS input signal...
OQ2538U Key Features
- Differential 100 Ω outputs for direct connection to Current-Mode Logic (CML) inputs
- Wide bandwidth (3 GHz)
- 48.5 dB limiting gain
- Noise figure typically 11 dB
- Automatic offset pensation
- Input level-detection circuits for Automatic Gain Control (AGC) and Loss Of Signal (LOS) detection
- Low power dissipation (typically 270 mW)
- Single -4.5 V supply voltage
- Low cost LQFP48 plastic package
OQ2538U Applications
- Main amplifier in Synchronous Digital Hierarchy (SDH) and Synchronous Optical Network (SONET) systems for short, medium and long haul optical transmission
- Level detector for laser diode control loops