The Teledyne LeCroy HDO4K-AUDIOBUS TD serial audiobus trigger, decode, and graph package provides all the tools needed to properly analyze and debug digital audio buses. Teledyne LeCroy’s solution addresses the I 2 S, LJ, RJ, and TDM variations of the audio bus standard. The Audiobus trigger can be configured for I 2 S, 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 isolate rare problems not easily detected by viewing decoded data alone.

Audiobus uses color-coded overlays on various sections of the protocol decode for an easy-to-understand visual display. This Teledyne LeCroy exclusive feature is intuitive to experienced audio engineers and especially useful for users new to the I2S, LJ, RJ, or TDM Audiobus standards. The decode information condenses or expands depending on the timebase/ zoom ratio setting, simplifying both routine verification and complex troubleshooting. Choose to decode into Hex, Binary, Decimal, or dB formats.

Teledyne LeCroy’s Audiobus decode enables the unique View Audio feature that converts the digitally-encoded serial data audio signal into an analog waveform display. This provides an intuitive way to understand circuit problems causing clipping, glitches, and other anomalies in the audio circuit. It also helps show 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).

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. Simultaneously decode up to 4 serial data buses. When using the MSO option on WaveRunner® Xi or WaveSurfer® Xs the digital inputs D0, D1, D2, etc. can be used as the source for a serial data trigger and decode.

Turn an oscilloscope into a protocol analyzer with the Table display of protocol information. The user can custom configure the Table to display only the information they want, and export Table data to an Excel file. Touch a message in the table and automatically zoom for detail. In all cases, the Table never obscures the waveforms data. Display values in an easy-to-understand table. Touch a row to zoom, or export to Excel with one button push.

Audiobus messages can be quickly located by searching on message or pattern. Pressing an arrow button advances the single zoomed message view one message to the right or left of the current message. The user can search through a long record of decoded data by entering the message or address they are looking for and clicking the right or left search arrows.