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Analog Devices ADAU1772BCPZ 4-Input 2-Output Audio Codec with Integrated DSP
Product Description
The Analog Devices ADAU1772BCPZ is a high-performance general purpose audio codec integrating four single-ended analog inputs and two stereo outputs with an embedded digital signal processing (DSP) engine. Designed for low latency, high fidelity audio applications including noise cancelling headsets and Bluetooth ANC devices, this codec supports a 192 kHz processing path and features programmable biquad filters, limiters, and volume controls.
Key technical specifications include:
- Four 24-bit single-ended ADC inputs, configurable for microphone or line level
- Two 24-bit DAC stereo outputs, configurable as single-ended or differential for line output or headphone drivers
- Analog-to-analog latency as low as 38 μs
- Outstanding dynamic range with 102 dB SNR on ADC path, and 107 dB combined SNR on DAC path using A-weighted filtering
- Programmable audio processing engine supports complex filtering and mixing
- Supports serial port audio sample rates from 8 kHz up to 192 kHz
- Full-duplex asynchronous sample rate converters (ASRC) for flexible clock domain crossing
- PLL support for input clock frequencies ranging from 8 MHz to 27 MHz
This codec module is widely adopted in biomedical engineering, consumer electronics, and biotechnology applications requiring real-time audio processing with minimal latency. Its programmable DSP is essential for synthetic biology instrumentation and advanced audio filtering in molecular diagnostics devices. The compact 40-pin LFCSP package enables efficient integration into bioprocessing equipment and noise cancelling audiology research platforms.
Overall, the ADAU1772 serves as a critical component in biomanufacturing and clinical diagnostics workflows, providing precise audio input/output control combined with onboard digital processing for enhanced noise suppression and signal integrity.
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