DS1862A XFP激光器控制和数字诊断IC

ds1862a xfp激光器控制和数字诊断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 关键特性
implements xfp msa requirements for digital diagnostics, serial id, and user memory i²c-compatible serial interface automatic power control (apc) extinction ratio control with lookup table seven monitored channels for digital diagnostics (five basic plus two auxiliary) internal calibration of monitored channels (temp, vcc2/3, bias current, transmitted, and received power) programmable quick-trip logic for turning off laser for eye safety access to monitoring and id information programmable alarm and warning thresholds operates from 3.3v or 5v supply 25-ball csbga, 5mm x 5mm package internal or external temperature sensor -40°c to +100°c operating temperature range one 8-bit buffered dac ds1862a 应用/使用
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激光器控制与监视
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ds1862a pdf datasheet (xfp laser control and digital diagnostic ic)
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DS1862A XFP激光器控制和数字诊断IC
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