DS1886
LAST TIME BUYSFP and PON ONU Controller with Digital LDD Interface
Works with MAX3710 and MAX3711 LDD/Limiting Amp to Implement Extinction Ratio Control
- Part Models
- 1
- 1ku List Price
- price unavailable
Overview
- Meets All SFF-8472 Control and Monitoring Requirements
- Companion Controller for the MAX3710 Laser Driver/Limiting Amplifier and MAX3945 Limiting Amplifier
- MAX3710/DS1886 Combination Supports Broad Spectrum of Continuous Mode and PON Applications Up to 2.5GHz
- Temperature Lookup Table (LUT) to Compensate for APC Tracking Error and Dual Closed-Loop Variables
- 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
- 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
- 10-Bit DAC with Temperature Compensation for APD Bias
- Digital I/O Pins: Transmit Disable Input/Output, Rate Select Input/Output, LOS Input/Output, Transmit Fault Input/Output, and IN1 Status Monitor and Fault input
- Comprehensive Fault Measurement System with Maskable Alarm/Warnings
- Flexible Password Scheme Provides Three Levels of Security
- 256-Byte A0h and 128-Byte Upper A2h EEPROM
- I²C-Compatible Interface
- 3-Wire Master to Communicate with the MAX3710/MAX3711 Laser Driver/Limiting Amplifier and MAX3945 Limiting Amplifier
The DS1886 controls and monitors all functions for SFF, SFP, and SFP+ modules including all SFF-8472 functionality for GPON/EPON and 10G PON ONU applications. 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
Documentation
Data Sheet 1
Reliability Data 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| DS1886T+T | Thin Quad Flatpack, No Leads |
This is the most up-to-date revision of the Data Sheet.
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