EmbeddedRelated.com
The 2026 Embedded Online Conference
    Parts    ADAU1701
ADAU1701

ADAU1701

Analog Devices
SigmaDSP audio processor with an audio-focused toolchain (SigmaStudio) for rapid audio algorithm development.
Active1,429 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The ADAU1701 is a complete single-chip audio system with a 28-bit sigma-delta DSP, ADCs, DACs, and microcontroller-like control interfaces. It features a 50MHz clock rate and 12kB of on-chip RAM, allowing for complex audio processing tasks like equalization, crossover, and dynamics processing without an external microcontroller.

Why Choose This Part

The primary advantage is the SigmaStudio graphical development tool, which allows engineers to design audio signal flows without writing code. Its integration of high-quality converters and a programmable DSP in a single 3.3V I/O package reduces BOM cost and PCB complexity for audio-centric designs.

Applications

Active Crossover Systems
Implementing multi-way speaker crossovers with precise phase and frequency alignment using the integrated SigmaDSP core.
Room Equalization
Developing automatic or manual room correction filters to improve acoustic performance in home theater or automotive environments.
Noise Cancellation
Utilizing the low-latency DSP architecture for active noise reduction and background noise suppression in voice communication.
Guitar Effects Pedals
Creating digital audio effects such as delay, reverb, and distortion in a compact 48-LQFP package footprint.

Key Specifications

Type Sigma
Interface I2C, SPI
Clock Rate 50MHz
On-Chip RAM 12kB
Mounting Type Surface Mount
Voltage - I/O 3.30V
Package / Case 48-LQFP
Voltage - Core 1.80V
Operating Temperature 0degC ~ 70degC (TA)
Supplier Device Package 48-LQFP (7x7)

Getting Started

Development is performed using the SigmaStudio software, where users drag and drop functional blocks to create signal chains. Hardware prototyping is typically done via the EVAL-ADAU1701MINIZ evaluation board and a USBi (EVAL-ADUSB2EBZ) interface for real-time tuning and programming via I2C or SPI.

ADAU1701 Family

Part NumberDifferenceStock
ADAU1701JSTZ JSTZ 807
The 2026 Embedded Online Conference