Overview
The ADAU1361BCPZ is a low-power, stereo audio codec developed by Analog Devices Inc. This integrated circuit is designed to support stereo 48 kHz record and playback at an exceptionally low power consumption of 14 mW from a 1.8 V analog supply. The ADAU1361 features 24-bit stereo audio ADCs and DACs, supporting sample rates from 8 kHz to 96 kHz, along with a digital volume control. It is particularly suited for battery-powered audio and telephony applications due to its low power requirements and high audio quality.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 24 bits | |
| Number of ADCs / DACs | 2 / 2 | |
| Sampling Rates | 8 kHz to 96 kHz | |
| Supply Voltage - Analog | 1.8 V to 3.6 V | V |
| Supply Voltage - Digital | 1.8 V to 3.6 V | V |
| Operating Temperature | -40°C to +85°C | °C |
| Package / Case | 32-Lead LFCSP (5mm x 5mm w/ EP) | |
| SNR (Signal to Noise Ratio) | >98 dB | dB |
| Power Consumption (Record/Playback at 48 kHz, 1.8 V) | 7 mW / 7 mW | mW |
Key Features
- 24-bit stereo audio ADC and DAC with >98 dB SNR
- Support for sampling rates from 8 kHz to 96 kHz
- Low power consumption: 7 mW for record and playback at 48 kHz from a 1.8 V supply
- Six analog input pins, configurable for single-ended or differential inputs
- Flexible analog input/output mixers
- Stereo digital microphone input
- Analog outputs: 2 differential stereo, 2 single-ended stereo, 1 mono headphone driver output
- PLL supporting input clocks from 8 MHz to 27 MHz
- Analog automatic level control (ALC) and microphone bias reference voltage
- I2C and SPI control interfaces
- Digital audio serial data I/O in stereo and TDM modes
- Software-controllable clickless mute and software power-down
Applications
The ADAU1361 is ideal for various applications where high-quality audio and low power consumption are critical. These include:
- Battery-powered audio devices
- Telephony applications
- Portable media players and portable audio players
- Phone accessories and other mobile audio solutions
Q & A
- What is the resolution of the ADAU1361's ADC and DAC?
The ADAU1361 features 24-bit stereo audio ADCs and DACs.
- What are the supported sampling rates for the ADAU1361?
The ADAU1361 supports sampling rates from 8 kHz to 96 kHz.
- How much power does the ADAU1361 consume during record and playback at 48 kHz from a 1.8 V supply?
The ADAU1361 consumes 7 mW for both record and playback at 48 kHz from a 1.8 V supply.
- What types of analog inputs does the ADAU1361 support?
The ADAU1361 supports six analog input pins, which can be configured for single-ended or differential inputs.
- Does the ADAU1361 have integrated microphone bias and digital microphone input?
Yes, the ADAU1361 includes an integrated microphone bias circuit and a stereo digital microphone input.
- What types of analog outputs are available on the ADAU1361?
The ADAU1361 provides 2 differential stereo, 2 single-ended stereo, and 1 mono headphone driver output.
- What clock frequencies does the ADAU1361's PLL support?
The PLL supports input clocks from 8 MHz to 27 MHz.
- What control interfaces does the ADAU1361 support?
The ADAU1361 supports I2C and SPI control interfaces.
- Can the ADAU1361 be controlled via software for mute and power-down?
Yes, the ADAU1361 has software-controllable clickless mute and software power-down capabilities.
- What is the operating temperature range of the ADAU1361?
The ADAU1361 operates within a temperature range of -40°C to +85°C.
