GENERAL DESCRIPTION
Ten ADC channels monitor VCC, temperature (both internal signals), and eight external monitor inputs (MON1–MON8) that can be used to meet transmitter, digital receiver, video receiver, and APD receiver-signal monitoring requirements. Four total DAC outputs are available. A PWM controller with feedback and compensation pins can be used to generate the bias for an APD or as a step-down converter. Five I/O pins allow additional monitoring and configuration. 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 ♦ 131kHz, 262kHz, 525kHz, or 1050k...
Maxim Integrated
