Keywords: low cost reference design, GEPON, SFF, OPNT, signle thermistor, simplified temperature compensation, Simplified temperature calibration, zero initialization time
Abstract: High Frequency Reference Design (HFRD) 25.1 is an ultra low-cost GEPON SFF ONT module design that provides excellent performance and manufacturability. Cost is minimized by using low-cost components and a single thermistor for modulation and bias compensation across temperature. To reduce assembly costs, all of the components in the design are placed on a single side of the PCB. The architecture also has simplified calibration as only two standard resistors values (one for modulation and one for bias) need to be set while providing the same ratio of temperature compensation from module to module.
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