Overview
The ADAU1772BCPZ, produced by Analog Devices Inc., is a highly integrated audio codec designed for a variety of audio applications. This codec features four analog-to-digital converters (ADCs) and two digital-to-analog converters (DACs), along with a robust digital signal processing (DSP) engine. The DSP core is capable of performing advanced functions such as filtering, level control, signal level monitoring, and mixing. The device is optimized for low latency, making it ideal for noise-cancelling headsets and other real-time audio processing applications.
Key Specifications
| Parameter | Description |
|---|---|
| Resolution | 24 bits |
| Conversion Rate | Up to 192 kHz |
| Number of ADCs | 4 |
| Number of DACs | 2 |
| Interface Type | SPI, I2C |
| Power Consumption | Typically 15 mW for noise cancelling solution |
| Supply Voltage | 1.8 V to 3.3 V |
| Dynamic Range | Up to 102 dB (A-weighted filter, AVDD = 3.3 V) |
| Total Harmonic Distortion + Noise | -96 dB (line output mode, 20 Hz to 20 kHz, -1 dBFS) |
Key Features
- Digital signal processing engine with biquad filters, limiters, volume controls, and mixing capabilities.
- Support for dual stereo digital microphone inputs and stereo PDM output.
- I2C and SPI control interfaces with self-boot from I2C EEPROM.
- Low power consumption, typically 15 mW for noise cancelling solutions.
- Seven multi-purpose pins for various control functions such as mute, DSP bypass, and push-button volume controls.
- Integrated microphone bias generators and LDO regulator.
Applications
- Noise cancelling handsets, headsets, and headphones.
- Bluetooth Active Noise Cancellation (ANC) handsets, headsets, and headphones.
- Personal navigation devices.
- Digital still and video cameras.
Q & A
- What is the resolution of the ADAU1772BCPZ?
The ADAU1772BCPZ has a resolution of 24 bits. - What is the maximum conversion rate of the ADAU1772BCPZ?
The maximum conversion rate is up to 192 kHz. - How many ADCs and DACs does the ADAU1772BCPZ have?
The device has 4 ADCs and 2 DACs. - What are the supported interface types for the ADAU1772BCPZ?
The device supports SPI and I2C interfaces. - What is the typical power consumption of the ADAU1772BCPZ for noise cancelling solutions?
The typical power consumption is 15 mW. - What is the supply voltage range for the ADAU1772BCPZ?
The supply voltage range is from 1.8 V to 3.3 V. - What are some of the key applications of the ADAU1772BCPZ?
The device is used in noise cancelling handsets, headsets, headphones, Bluetooth ANC devices, personal navigation devices, and digital cameras. - Does the ADAU1772BCPZ support digital microphone inputs?
Yes, it supports dual stereo digital microphone inputs. - What is the dynamic range of the ADAU1772BCPZ?
The dynamic range is up to 102 dB with an A-weighted filter and AVDD = 3.3 V. - How does the ADAU1772BCPZ manage power?
The device includes an LDO regulator and is designed for low power consumption.
