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The BT-DUO option is a fully revised and upgraded Bluetooth hardware module with dedicated sources and receivers, new Bluetooth chips and latest firmware, higher RF power, and improved shielding features. And it can provide a series of new audio codecs to meet the diversity of current Bluetooth products. Support new operational features in config-uration files and faster Bluetooth connectivity, enabling engineers to quickly and accurately test Bluetooth products and master their device perfor-mance.
The DSIO option adds a multi-channel digital serial interface to the audio analyzer, providing direct connections for chip level interfaces and playing a decisive role in the design and development of circuit boards. It is easy to use, with accurate test results, and can be widely used for audio quality testing of various digital devices.
Pulse-density modulation (PDM) is a 1-bit, high clock frequency data stream used in MEMS digital microphones, which is widely used in smart phone design. The audio analyzer equipped with A5-PDM module can be directly connected to any device with PDM input or output to achieve comprehensive audio testing required by the highly mobile telecommunications industry.
PDM16, as an optional input module for Ax series audio analyzers, consists of an input module installed in the analyzer, a remote interface box, and an extension cable. It can provide up to 16 channels of accurate inter channel phase information for sampling, which is the key data for creating MEMS microphone arrays. PDM16 utilizes synchronous sampling based on a common clock to ensure clear and visible phase relationships between channels.
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