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MAX3940 - 10Gbps EAM Driver

General Description

The MAX3940 is designed to drive an electro-absorption modulator (EAM) at data rates up to 10.7Gbps.

It incorporates the functions of a biasing circuit and a modulation circuit, with integrated control op amps externally programmed by DC voltages.

Key Features

  • o On-Chip Bias Network o 23ps Edge Speed o Programmable Modulation Voltage Up to 3VP-P o Programmable EAM Biasing Voltage Up to 1.25V o Selectable Data-Retiming Latch o Up to 10.7Gbps Operation o Integrated Modulation and Biasing Functions o 50Ω On-Chip Input and Output Terminations o Pulse-Width Adjustment o Enable and Polarity Controls o ESD Protection MAX3940 Ordering Information PART MAX3940E/D TEMP RANGE -40°C to +85°C PIN-.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com 19-2730; Rev 0; 1/03 10Gbps EAM Driver with Integrated Bias Network General Description The MAX3940 is designed to drive an electro-absorption modulator (EAM) at data rates up to 10.7Gbps. It incorporates the functions of a biasing circuit and a modulation circuit, with integrated control op amps externally programmed by DC voltages. The integrated bias circuit provides a programmable biasing current up to 50mA. This bias current reflects a bias voltage of up to 1.25V on an external 50Ω load. The bias and modulation circuits are internally connected on chip, eliminating the need for an external bias inductor. A high-bandwidth, fully differential signal path is internally implemented to minimize jitter accumulation.