VSC7977

The VSC7975 and VSC7977 are multirate transimpedance amplifiers for Gigabit Ethernet, Fibre Channel, and Infiniband applications. The devices provide a means for adjusting their bandwidth to allow full compliance with multiple Gigabit Ethernet, Fibre Channel, and Infiniband standards. The VSC7975 and VSC7977 are equipped with a single pin that serves both as a control for bandwidth as well as a linear received optical power monitor. This allowsthe device to have multirate bandwidth control, power monitoring, and differential outputs and be assembled in a standard 5-pin TO- 46 package. A space-saving filter connection is provided for positive bias to the photodiode through a filter resistor to VCC.

The VSC7977 is available in die form or 5-pin TO-46 package with short wavelength PIN photo detector. The VSC7975 is available in a 5-pin TO-46 package with long wavelength PIN photo detector.