Audio Precision APx PDM Module
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Produktinformationen "Audio Precision APx PDM Module"
Pulse Density Modulation (PDM) is a one-bit, high rate data stream that conveys a signal by modulating the density of the pulses. Applications for PDM include Micro-Electrical-Mechanical System (MEMS) microphones found in smartphones, and integrated circuits with PDM interfaces.
The APx PDM option provides direct connectivity for audio devices that have a PDM output (such as a MEMS microphone) or input (such as the decimator on a smartphone chip). In addition to all the standard audio measurements, APx provides variable DC voltage, variable sample rate, and a PSR (power supply rejection) measurement to test the device’s full operating parameters. No other analyzer combines direct PDM connectivity with APx’s best in class speed, ease-of-use, and performance.