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DS1862A XFP激光器控制和數(shù)字診斷IC
DS1862A 概述
The DS1862A is a closed-loop laser-driver control IC with built-in digital diagnostics designed for XFP MSA. The laser control function incorporates automatic power control (APC) and allows extinction ratio control though a temperature-indexed lookup table (LUT). The DS1862A monitors up to seven analog inputs, including temperature and monitor diode (MD) current, which are used to regulate the laser bias current and extinction ratio. Warning and alarm thresholds can be programmed to generate an interrupt if monitored signals exceed tolerance. Calibration is also provided internally using independent gain and offset scaling registers for each of the monitored analog signals. Settings such as programmed calibration data are stored in password-protected EEPROM memory. Programming is accomplished through an I²C-compatible interface, which can also be used to access diagnostic functionality.
DS1862A 關(guān)鍵特性
DS1862A 應(yīng)用/使用
| 光傳輸中的數(shù)字診斷 | |
| 激光器控制與監(jiān)視 | |
| Laser Control and Monitoring 10Gbps Optical Transceiver Modules (XFP) |
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