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DS1886T+ Datasheet(PDF) 1 Page - Maxim Integrated Products |
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DS1886T+ Datasheet(HTML) 1 Page - Maxim Integrated Products |
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1 / 92 page  DS1886 SFP and PON ONU Controller with Digital LDD Interface 1 General Description The DS1886 controls and monitors all functions for SFF, SFP, and SFP+ modules including all SFF-8472 func- tionality for GPON/EPON and 10G PON ONU applica- tions. The combination of the DS1886 with the MAX3710 supports all transmitter and receiver functionality. The DS1886 includes modulation current control and APC set- point control with tracking error adjustment. It continually monitors RSSI for LOS generation. A 13-bit analog-to- digital converter (ADC) monitors VCC, temperature, laser bias, laser modulation, and receive power to meet all monitoring requirements. Receive power measurement is differential with support for common mode to VCC. A 9-bit digital-to-analog converter (DAC) is included with temperature compensation for APD bias control. Applications SFF, SFP, and PON ONU Modules Features S Meets All SFF-8472 Control and Monitoring Requirements S Companion Controller for the MAX3710 Laser Driver/Limiting Amplifier and MAX3945 Limiting Amplifier S MAX3710/DS1886 Combination Supports Broad Spectrum of Continuous Mode and PON Applications Up to 2.5GHz S Temperature Lookup Table (LUT) to Compensate for APC Tracking Error and Dual Closed-Loop Variables S Three Laser Control Modes Dual Closed Loop: Laser Bias and Laser Modulation Are Automatically Controlled with Multiple LUTs to Compensate Dual Closed-Loop Calibration Points APC Loop: Laser Bias Automatically Controlled, Laser Modulation Controlled by Temperature LUT Open Loop: Laser Bias and Laser Modulation Are Controlled by Temperature LUTs S 13-Bit ADC Laser Bias, Laser Power, and Receive Power Support Internal and External Calibration Differential Receive Power Input Scalable Dynamic Range Internal Direct-to-Digital Temperature Sensor Alarm and Warning Flags for All Monitored Channels S 10-Bit DAC with Temperature Compensation for APD Bias S Digital I/O Pins: Transmit Disable Input/Output, Rate Select Input, LOS Input/Output, Transmit Fault Input/Output, and IN1 Status Monitor and Fault input S Comprehensive Fault Measurement System with Maskable Alarm/Warnings S Flexible Password Scheme Provides Three Levels of Security S 256-Byte A0h and 128-Byte Upper A2h EEPROM S I2C-Compatible Interface S 3-Wire Master to Communicate with the MAX3710/ MAX3711 Laser Driver/Limiting Amplifier and MAX3945 Limiting Amplifier 19-6259; Rev 1; 8/12 Ordering Information appears at end of data sheet. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. |
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Similar Description - DS1886T+ |
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