Abstract:
PROBLEM TO BE SOLVED: To improve the performance and flexibility of serial data analysis. SOLUTION: In a transmitter section 10, a demultiplexer 12 inputs serial data and outputs n×N data lanes, an encoder 14 inputs these data lanes and generates m×N encoded data lanes, a circuit 16 inserts additional data into these encoded data lanes and generates m×N stuffed data lanes, and a multiplexer 18 inputs these stuffed data lanes and outputs N serial data lanes at a desired data rate. A receiver section 20 inputs N serial data lanes and outputs a trigger event for serial data. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To instantaneously trigger on a frequency deviation dF/dT of an SSC signal.SOLUTION: A signal received at an input terminal 210 of a test and measurement instrument 200 is low-pass filtered and transmitted to dF/dT trigger circuitry 220. The dF/dT trigger circuitry 220 includes trigger circuitry and a PLL circuit. The trigger circuitry is connected to an output terminal of an adjustable low-pass filter in the PLL circuit, and receives a proportional path output signal of the PLL circuit. Thereby, when a frequency deviation in the filtered SSC signal exceeds or crosses one or more thresholds, the trigger circuitry produces a trigger event.