The MAX3935 is designed to drive an electro-absorption modulator (EAM) at data rates up to 10.7Gbps. It provides programmable output levels through externally adjustable bias and modulation currents. This EAM driver is fabricated with Maxim's in-house second-generation SiGe process. The MAX3935 accepts differential ECL or ground-referenced CML clock and data-input signals. Inputs are terminated with on-chip 50Ω resistors. An input-data retiming latch can be used to reject input-pattern-dependent jitter if a clock signal is available. The driver can modulate EAM devices at amplitudes up to 3.0VP-P when the device impedance is 50Ω. Typical (20% to 80%) edge speeds are 34ps. The output has an on-chip 75Ω resistor for back termination. The MAX3935 allows for an EAM bias voltage up to 1.2V. The MAX3935 also includes an adjustable pulse-width control circuit to precompensate for asymmetrical EAM characteristics. Applications * Add/Drop Multiplexers * DWDM * Metro and Long-Haul Transmitters * SONET OC-192 and SDH STM-64 * Transmission Systems * Single -5.2V Power Supply * Low 110mA Supply Current * 34ps Typical Rise/Fall Time * Up to 10.7Gbps (NRZ) Operation * On-Chip Termination Resistors * Programmable Modulation Voltage Up to 3.0VP-P * Programmable EAM Bias Voltage Up to 1.2V * Adjustable Pulse-Width Control * Selectable Data Retiming Latch * Modulation Enable Control * ESD Protection