Overview
The ADAU1781BCPZ, produced by Analog Devices Inc., is a low-power, 24-bit stereo audio codec designed for portable audio applications. This device is characterized by its low noise DAC and ADC, supporting sample rates from 8 kHz to 96 kHz. The ADAU1781BCPZ is ideal for battery-powered devices due to its low current draw and power-saving modes.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24-bit |
| Sample Rates | 8 kHz to 96 kHz |
| Input Types | Digital stereo microphone inputs, analog stereo input (pseudo differential or single-ended) |
| Output Types | Stereo line output, speaker driver |
| Control Bus | I²C or SPI protocols |
| Audio Bus | Programmable for I²S, left-justified, right-justified, or TDM mode |
| PLL | Programmable PLL for flexible clock generation (11 MHz to 20 MHz master clocks) |
| Package | 32-VFQFN Exposed Pad, CSP |
| RoHS Status | ROHS3 Compliant |
Key Features
- Low power consumption and power-saving modes, making it suitable for battery-powered applications.
- Low noise DAC and ADC for high-quality audio.
- Support for digital stereo microphone inputs and analog stereo inputs with pseudo differential or single-ended configurations.
- Dedicated analog beep input signal that can be mixed into any output path.
- Stereo line output and speaker driver capable of supporting dynamic speakers.
- Programmable serial control bus supporting I²C or SPI protocols.
- Programmable serial audio bus for I²S, left-justified, right-justified, or TDM mode.
- Programmable PLL for flexible clock generation.
Applications
The ADAU1781BCPZ is designed for various portable audio applications, including handheld audio devices, mobile phones, tablets, and other battery-powered audio equipment. Its low power consumption and high audio quality make it an ideal choice for devices that require efficient and reliable audio processing.
Q & A
- What is the resolution of the ADAU1781BCPZ audio codec?
The ADAU1781BCPZ has a 24-bit resolution. - What are the supported sample rates for the ADAU1781BCPZ?
The supported sample rates range from 8 kHz to 96 kHz. - What types of inputs does the ADAU1781BCPZ support?
The device supports digital stereo microphone inputs and analog stereo inputs (pseudo differential or single-ended). - What are the output options available on the ADAU1781BCPZ?
The device includes a stereo line output and a speaker driver. - Which communication protocols does the ADAU1781BCPZ support?
The device supports I²C and SPI protocols for the control bus and programmable serial audio bus for I²S, left-justified, right-justified, or TDM mode. - What is the package type of the ADAU1781BCPZ?
The package type is 32-VFQFN Exposed Pad, CSP. - Is the ADAU1781BCPZ RoHS compliant?
Yes, the ADAU1781BCPZ is ROHS3 Compliant. - What is the purpose of the programmable PLL in the ADAU1781BCPZ?
The programmable PLL supports flexible clock generation for all standard rates and available master clocks from 11 MHz to 20 MHz. - Can the ADAU1781BCPZ be used in battery-powered devices?
Yes, the device is designed for battery-powered applications due to its low power consumption and power-saving modes. - What software is used to control the ADAU1781BCPZ evaluation board?
The evaluation board is controlled by Analog Devices' SigmaStudio™ software via a USB connection.
