DS1875 Overview
Key Specifications
Mount Type: Surface Mount
Pins: 38
Operating Voltage: 3.3 V
Max Voltage (typical range): 3.9 V
Description
The DS1875 controls and monitors all functions for burstmode transmitters, APD receivers, and video receivers. It also includes a power-supply controller for APD bias generation, and provides all SFF-8472 diagnostic and monitoring functionality.
Key Features
- Meets All PON Burst-Timing Requirements for Burst-Mode Operation
- Laser Bias Controlled by APC Loop and Temperature Lookup Table (LUT)
- Laser Modulation Controlled by Temperature LUT
- Six Total DACs: Four External, Two Internal
- Two 8-Bit DACs, One of Which is Optionally Controlled by MON4 Voltage
- Internal 8-Bit DAC Controlled by a TemperatureIndexed LUT
- PWM Controller
- Boost or Buck Mode
- Boost Mode: Uses Optional External Components, Up to 90V Bias Generation
- APD Overcurrent Protection Using Optional Fast Shutdown
