Abstract: An apparatus includes amplification circuitry configured to amplify a radio frequency (RF) signal. The apparatus also includes differential inductors coupled to an output of the amplification circuitry. The differential inductors include a first inductor serially coupled to a second inductor, and the differential inductors are configured to filter the RF signal and to provide a differential output.

Abstract: An apparatus includes amplification circuitry configured to amplify a radio frequency (RF) signal. The apparatus also includes differential inductors coupled to an output of the amplification circuitry. The differential inductors include a first inductor serially coupled to a second inductor, and the differential inductors are configured to filter the RF signal and to provide a differential output.

Abstract: A method of performing multiple parallel event accumulations. This method permits devices to implement SONET/SDH Bit Error Rate monitoring on a large number of paths, but at a significantly lower cost of implementation than would be possible using existing approaches. The method removes the need for each path being monitored to have a time reference (frame counter) of its own. Instead, each monitoring path has two accumulators whose active regions will overlap in time such that the total number of frames covered will be a power of 2. This approach allows one global frame counter to be used for all the paths in question, even if those paths have completely different accumulation periods. This method of performing BER tests allows devices to perform such operations on thousands of tributary paths (VT, TU), rather than only on the STS-n/STM-n paths that most current SONET/SDH devices support.