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Description
The OQ2812 is a high performance limiting amplifier integrated circuit (IC) that was produced as the main amplifier in Non-Return to Zero (NRZ) transmission systems with 2.5 Gbits/s. It is part of the IC Chip product category and is widely used in various types of systems that require high-speed data transmission. The chip is composed of four amplifier stages, providing a total gain of 48.5 dB, allowing for a wide input signal dynamic range at a constant Current Mode Logic (CML)-compatible output level. Additionally, it comes with two level-detection circuits that monitor AGC and LOS input signal levels. There is also an automatic offset compensation circuit built-in to eliminate the offset in the amplifier chain.
Specifications and features
- Differential 100-ohm outputs for direct connection to Current-Mode Logic (CML) inputs
- Wide bandwidth of 3 GHz
- 48.5 dB limiting gain
- Noise figure typically 11 dB
- Automatic offset compensation
- Input level-detection circuits for Automatic Gain Control (AGC) and Loss Of Signal (LOS) detection
- Low power dissipation of typically 270 mW
- Single −4.5 V supply voltage
- Low cost LQFP48 plastic package
Application Scenarios
The OQ2812 is commonly used as the main amplifier in various short, medium, and long-haul optical transmission systems that use Synchronous Digital Hierarchy (SDH) and Synchronous Optical Network (SONET). It can also be used as a level detector for laser diode control loops or as a wideband RF gain block with internal level detectors.
Comparison
Advantages- Wide bandwidth of 3 GHz
- Automatic offset compensation
- Input level-detection circuits for Automatic Gain Control (AGC) and Loss Of Signal (LOS) detection
- Low power dissipation ideal for low heat generation
Disadvantages- The OQ2812 is not designed for use as a primary amplifier beyond 2.5 Gbits/s Non-Return to Zero (NRZ) transmission systems (SDH/SONET).
- It requires a single −4.5 V supply voltage, which may not be compatible with some systems.
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download OQ2812
- Chipdatas Part: CD88-OQ2812
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/03 14:27 +0800
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