Overview
The ADAU1979WBCPZ, produced by Analog Devices Inc., is a quad analog-to-digital converter (ADC) designed for high-performance audio applications. This device incorporates four analog-to-digital converters with 4.5 V rms capable ac-coupled inputs, utilizing a multibit sigma-delta (Σ-Δ) architecture with a continuous time front end to minimize electromagnetic interference (EMI). The ADAU1979WBCPZ is controlled via an I2C or SPI interface, allowing for flexible configuration and control by a microcontroller.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Full Scale AC Differential Input Voltage | 4.18 | 4.5 | 4.82 | V rms |
| Full Scale Single-Ended Input Voltage | 2.09 | 2.25 | 2.41 | V rms |
| Sample Rates | 8 kHz to 192 kHz | |||
| Resolution | 24 bits | |||
| Supply Voltage (AVDDx) | 3.3 V | |||
| Internally Generated Digital Supply (DVDD) | 1.8 V | |||
| Operating Temperature | -40°C | +105°C |
Key Features
- Four high-performance analog-to-digital converters with 4.5 V rms capable ac-coupled inputs.
- 24-bit stereo ADC with sample rates from 8 kHz to 192 kHz.
- Selectable digital high-pass filter.
- Digital volume control with autoramp function.
- Software-controllable clickless mute and power-down.
- I2C/SPI controllable for flexibility.
- Master and slave operation modes.
- Right justified, left justified, I2S, and TDM modes.
- Low power architecture with single 3.3 V supply.
- On-chip phase-locked loop (PLL) for master clock.
- Low electromagnetic interference (EMI) design.
Applications
- Automotive audio systems.
- Active noise cancellation systems.
Q & A
- What is the ADAU1979WBCPZ?
The ADAU1979WBCPZ is a quad analog-to-digital converter (ADC) produced by Analog Devices Inc., designed for high-performance audio applications. - What is the input voltage range of the ADAU1979WBCPZ?
The device has a full scale AC differential input voltage range of 4.18 to 4.82 V rms. - What are the sample rates supported by the ADAU1979WBCPZ?
The ADAU1979WBCPZ supports sample rates from 8 kHz to 192 kHz. - What is the resolution of the ADCs in the ADAU1979WBCPZ?
The ADCs have a resolution of 24 bits. - How is the ADAU1979WBCPZ controlled?
The device is controlled via an I2C or SPI interface. - What are the power supply requirements for the ADAU1979WBCPZ?
The device requires a single 3.3 V supply, and it internally generates the 1.8 V digital supply (DVDD). - What are the operating temperature ranges for the ADAU1979WBCPZ?
The operating temperature range is from -40°C to +105°C. - What are some key features of the ADAU1979WBCPZ?
Key features include digital volume control, software-controllable clickless mute, and low EMI design. - What are the typical applications of the ADAU1979WBCPZ?
The device is typically used in automotive audio systems and active noise cancellation systems. - Does the ADAU1979WBCPZ support different operation modes?
Yes, it supports master and slave operation modes, as well as right justified, left justified, I2S, and TDM modes.
