ESH10000560 - Tone Audio Module

ESH10000560 – Tone Audio Module

Product Brief

The ESH10000560 is a line-level audio generation and analysis module for the Accordion ecosystem. All sampling, signal processing, and measurement are performed locally on the module — only configuration commands and processed results are exchanged with the Accordion system. This keeps backplane bandwidth usage minimal and ensures deterministic performance.

The module operates in a client–server architecture: Accordion acts as the client issuing requests; the Tone Audio Module acts as the server exposing high-level audio capabilities.

Key use cases:

• Audio signal generation for test and validation

• Line-level audio analysis in production environments

• Automated frequency, level, and distortion measurements

• Audio subsystem verification within Accordion-based test systems

Datasheet

Manual

Architecture

The Tone Audio Module is an autonomous audio processing node. Audio generation, acquisition, DSP, and measurement all run on the module. The Accordion system communicates via UART using a command-based protocol for:

• Configuration (gain, waveform, channel selection)

• Control (start/stop generation and acquisition)

• Measurement result retrieval

Raw sample streams are never exposed to the Accordion backplane.

Audio Generation

The module provides 2 DAC output channels. Each channel supports independent programmable gain and waveform selection.

Supported waveforms: Sine, Square, Sawtooth, Noise

Output operates continuously once configured — no streaming of sample data from the host is required.

Audio Measurement

The module provides 4 × 2 multiplexed ADC input channels with programmable gain. Measurements are computed on-module and returned as processed scalar values.

Supported measurements:

GPIO

6 GPIO pins are available for peripheral control. [TODO: document GPIO configuration and usage]

Limitations

• All external audio interfaces are line level only

• Digital audio (I²S and DSP paths) is internal and not exposed externally

• Sample rate (96 kSps) and bit depth (24 bit) are fixed by hardware

Pinout

J4–J13 — Audio Channels (COAX)

J14 — GPIO / Power Header (2×5)