Audio Precision offers digital serial I/O module

Edited by the Electronicstalk editorial team Nov 6, 2008

Audio Precision is introducing a digital serial I/O module for its respected range of APx audio analysers.

The multichannel APx Digital Serial I/O option allows engineers to test audio devices at the level of individual ICs rather than being limited to evaluating only the external inputs and outputs of a device.

The digital serial option will be of particular interest to HDMI chip developers.

When used with AP's existing HDMI interface option, an APx analyser - already the only product capable measuring audio embedded in HDMI - becomes a simple but unrivalled HDMI chip debugging tool.

Aside from its applications in HDMI chip design, the Digital Serial option allows all normal audio measurements to be carried out on A/D and D/A converters, codecs, DSPs, and sample rate converters.

There is built-in support for the most widespread serial interface formats, including left justified, right justified, DSP and I2S, and the interface can generate and measure up to eight audio channels simultaneously using TDM or multiple data lines.

Other innovations include independent input and output clocks, dedicated, buffered oscilloscope monitors, and presets for testing popular audio devices.