Date: 14/07/2009

LeCroy releases new test-tool package for audio I2S interface testing

LeCroy has launched new serial AudioBus trigger, decode, and graph packages to analyze and debug the digital audio over the Inter-IC-Sound bus (I2S) bus interface. This package is available for use with the Lecroy's WaveRunner Xi and WaveSurfer Xs oscilloscope platforms. LeCroy's AudioBus decode enables the unique View Audio feature that converts the digitally encoded serial data audio signal to an analog waveform display. This provides the engineer with an intuitive way to understand circuit problems that cause clipping, glitches, and other anomalies in the audio circuit, as well as to see the effects of the audio signal before Digital Signal Processing (DSP). View Audio can be performed for up to four audio channels for conventional Left/Right audio, or home cinema applications (enabled by time division multiplexed audio buses.)

AudioBus uses color-coded overlays on various sections of the protocol decode for a visual display that is easy to understand. This feature, exclusive to LeCroy, is intuitive for experienced audio engineers; and especially useful for users new to the I2S, LJ, RJ, or TDM Audio Bus standards. In addition, decode information condenses or expands depending on the timebase/zoom ratio setting, simplifying both routine verification and complex troubleshooting. Engineers can choose to decode into Hex, Binary, Decimal, or dB formats.

The AudioBus trigger can be configured for I2S, LJ, or RJ variants. Powerful conditional triggering can be applied to either left or right channel data, while unique triggers like mute, clip and glitch help to isolate rare problems not easily detected by viewing decoded data alone. In addition, AudioBus turns the oscilloscope into a protocol analyzer with a customizable table display of protocol information which can be exported as an Excel file.

For further info visit www.lecroy.com