DS1863 Datasheet | Maxim Integrated

Description The DS1863 controls and monitors all the burst-mode transmitter and video receiver biasing functions for a passive optical network (PON) triplexer. It has an APC loop with tracking-error pensation that provides the reference for the laser-driver’s bias current, and a temperature indexed lookup table (LUT) that controls the modulation current. It continually monitors for high output current, high bias current, and low and high transmit power with its internal fast parators to ensure that laser shutdown for eye safety requirements are met without adding external ponents. Five ADC channels monitor VCC, internal temperature, and three external monitor inputs (MON1- 3) that can be used to meet transmitter and receive monitoring requirements. Features o Meets BPON, GPON, and GEPON Timing Requirements for Burst-Mode Transceivers o Bias Current Control provided by APC Loop with Tracking Error pensation o Modulation Current is Controlled by a Temperature-Indexed Lookup Table o Supports 0d B, -3d B, -6d B Power Leveling Settings with no Additional Calibration o Internal Direct-to-Digital Temperature Sensor o Five Analog Monitor Channels: Temperature, VCC, MON1, MON2, and MON3 o prehensive Fault Management System with Maskable Laser Shutdown Capability o Two-Level Password Access to Protect Calibration Data o 120 Bytes of Password 1 (PW1) Protected Nonvolatile Memory o 128 Bytes of Password 2 (PW2) Protected Nonvolatile Memory o I2C-patible Interface for Calibration and Monitoring o Operating Voltage: 2.85V to 5.5V o Operating Temperature: -40°C to +95°C o 16-Pin Lead-Free TSSOP Package Applications BPON, GPON and GEPON, Burst-Mode Transmitters Laser Control and Monitoring Broadband Local Access Pin Configuration TOP VIEW + BEN 1 TX-D 2 N.C. 3 TX-F 4 FETG 5 SDA 6 SCL 7 GND 8 16 VCC 15 BMD 14 MOD 13 BIAS Ordering Information PART DS1863E+ DS1863E+T&R TEMP RANGE -40°C to +95°C -40°C to +95°C PIN-PACKAGE 16 TSSOP 16 TSSOP +Denotes lead-free package. T&R...