The APx585 redefines ease of use for testing devices such as cell phones and MP3 players. It has eight analog audio inputs and eight analog outputs, and it supports eight channels of digitized audio.

A small audio test generator is very useful for quickly tracing a signal through an audio unit. Its main purpose is speed rather than refinement. A single sine-wave signal of about 1 kHz is normally ...

What's required in a source for mixed-signal test. Key factors in achieving low distortion. Designing a signal-generation path. What is digital predistortion (DPD)? Using LDOs to power the test system ...