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MAX3941

Maxim
Part Number MAX3941
Manufacturer Maxim
Description 10Gbps EAM Driver with Integrated Bias Network
Published Jun 13, 2005
Detailed Description 19-2935; Rev 0; 7/03 10Gbps EAM Driver with Integrated Bias Network General Description The MAX3941 is designed to driv...
Datasheet PDF File MAX3941 PDF File

MAX3941
MAX3941

Overview
19-2935; Rev 0; 7/03 10Gbps EAM Driver with Integrated Bias Network General Description The MAX3941 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.
When a clock signal is available, the integrated data-retiming function can be selected to reject input-signal jitter.
The MAX3941 receives differential CML signals (ground referenced) with on-chip line terminations of 50Ω.
The output has a 50Ω resistor for back termination and is able to deliver a modulation current of 40mA P-P to 120mAP-P, with an edge speed of 23ps (20% to 80% typ).
This modulation current reflects an EAM modulation voltage of 1.
0VP-P to 3.
0VP-P.
The MAX3941 also includes an adjustable pulse-width control circuit to precompensate for asymmetrical EAM characteristics.
It is available in a compact 4mm x 4mm, 24-pin thin QFN package and operates over the -40°C to +85°C temperature range.
o o o o o o o o o o o Features On-Chip Bias Network 23ps Edge Speed Programmable Modulation Voltage Up to 3VP-P Programmable EAM Biasing Voltage Up to 1.
25V Selectable Data-Retiming Latch Up to 10.
7Gbps Operation Integrated Modulation and Biasing Functions 50Ω On-Chip Input and Output Terminations Pulse-Width Adjustment Enable and Polarity Controls ESD Protection MAX3941 Ordering Information PART MAX3941ETG TEMP RANGE -40°C to +85°C PIN-PACKAGE 24-Thin QFN (4mm x 4mm) Applications SONET OC-192 and SDH STM-64 Transmission Systems DWDM Systems Long/Sho...


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