AXT Systems

AAM-2 Stereo Balanced Attenuator
AAM-2 Module
The AAM-2 is a stereo balanced in and out active attenuator.

The incoming balanced input is summed using the THAT1250 device to provide a single ended signal for attenuation. This method conserves the balanced CMRR and provides a more accurate attenuation. The signal is then re-balanced using THAT1646 drivers.
The module is powered with a bipolar supply (+/-12 to 16V) using a power supply such as the PSU-12. It measures 80mm x 50mm. It has a continuously variable attenuation value using a pot which can be marked on the panel to show dB.