SY88902KC

Series:	--
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Discontinued at Digi-Key
Moisture Sensitivity Level (MSL):	--
Type:	Laser Diode Driver (Fiber Optic)
Data Rate:	1.25Gbps
Number of Channels:	1
Voltage - Supply:	4.5 V ~ 5.5 V
Current - Supply:	16mA
Current - Modulation:	25mA
Operating Temperature:	0°C ~ 85°C
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package:	10-MSOP
Mounting Type:	Surface Mount
Base Part Number:	SY88902

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Introduction

The SY88902KC is a powerful integrated laser driver for optical devices with high-speed data communications. It provides a cost effective solution for driving laser diodes in optical devices, such as digital signal processing (DSP) applications. It can be used for both digital and analog optical applications. The SY88902KC is a reliable, compact and robust driver capable of delivering up to 15mA of current. The integrated driver is able to adjust its gain to ensure proper operation of the laser diode at low and high power levels.

Application Field

The SY88902KC is a highly customizable laser driver that is designed to be used in a wide range of optical applications. It is suitable for applications such as: optical communication systems, fiber-optic links, laser printing, laser display systems, laser sensors, laser scanning, laser barcode readers, fiber-optic data transmission, optical fiber switches, fiber-optic routers, fiber-optic cables, medical and veterinary imaging, augmented reality (AR), virtual reality (VR) and 3D printing. The high-speed data rates provided by the SY88902KC make it ideal for use in these applications. The SY88902KC can also be used in applications in the automotive, industrial, security and aerospace industries.

Working Principle and Design

The SY88902KC is an integrated laser driver. It is an AC-coupled, adjustable current-source laser driver with a floating laser diode input and single-ended, low-voltage controlled, floating output. The SY88902KC combines a feedback compensation circuit and digital signal processor with several control and monitoring blocks. The SY88902KC enables digital and analog control of the output laser current while also providing a wide range of safety and diagnostic features. The laser current output can be adjusted in both analog and digital modes. In analog mode, the laser current can be adjusted via a single analog control input. In digital mode, the laser current is adjusted via two digital control signals. The integrated current-sourcing converter adjusts the laser current according to the growth and current of the laser diode. The integrated current-sinking converter also adjusts the laser current in accordance with the device temperature.The SY88902KC includes multiple protection features to ensure safe and reliable operation. These features include over-current and over-temperature protection and alerting. The integrated digital error correction circuit helps to ensure accurate current and temperature control.

Conclusion

The SY88902KC is a powerful integrated laser driver that is designed to enable cost effective solutions for driving a wide range of optical applications. It combines a feedback compensation circuit and a digital signal processor with several control and monitoring blocks to enable digital and analog control of the output laser current while also providing a wide range of safety and diagnostic features. The laser current output can be adjusted in both analog and digital modes, making the SY88902KC an ideal solution for applications in the automotive, industrial, security and aerospace industries.

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