miniSHARC Kit

ADSP21369 333MHz Sharc DSP module with USB, SDcard, I2S digital in and out
185 USD
Stereo Digital Interface Tooltip
IR + Master volume control Tooltip
Add a UMIK-1
  • Description
  • Specifications
  • Support
  • Application Notes
  • Reviews

Introducing the miniSHARC kit, a powerful DSP module designed to fit the needs of floating point audio processing for OEM applications and custom products. Powered by Analog Devices Sharc ADSP21369 processor, the miniSHARC will easily handles resource intensive filtering. From room correction to linear phase crossover filter, the miniSHARC palm size form factor is the perfect fit for to complete your product with a ready made module.

@ miniDSP, we believe in flexibility and open architecture. The concept of the miniSHARC kit is to provide an open platform where algorithm designers can easily load their custom IIR/FIR based filters on the DSP. Thanks to the onboard SD card, designers do not require a computer to configure the device nor to upgrade firmware. For real time configuration, the driverless USB connectivity allows control from both Windows and Mac environment.


  • Analog Devices Sharc ADSP21369
  • 32bit floating point - Current support for 48k and 96k on 2 plug-ins.
  • On-board MCU for USB and SD card control
  • I2S in/out control
  • Compatible with DIGI-FP & VOL-FP accessories
  • Plug&Play USB driver and Software configurable via Mac/Win plug-in.


Product Downloads

What's in the box?

  • 1 x miniSHARC kit
  • 1 x 5V power supply with interchangeable plugs
  • 1 x miniUSB cable

Optional Accessories

Digital Signal Processor Engine Floating-point Analog Devices SHARC DSP 

Internal Processing resolution
& Sample rate

32-bit - 48/96kHz depending on plugin

Input/Ouput Configuration

I2S in / I2S out

Audio Input Connectivity

Stereo I2S input, Stereo SPDIF input receiver

Audio Output Connectivity

Up to 8ch I2S output, stereo SPDIF transceiver

Input / Output Max Levels


Input Impendance
Output Impedance
Calibration Software miniSHARC plugin
Filtering Technology FIR + IIR
DSP Presets Up to 4 presets 
Dimensions 75 x 75 x 15 mm
Power External 5~24VDC supply
Power consumption depends on loaded DSP firmware.
Typically < 5W
Compatible Boards DIGI-FP, AN-FP, DA-FP, miniDAC8, VoL-FP
Impulse Response Correction
Infrared Remote Learning
Win/Mac Compatible
UMIK-1 Included
Bass Management
Room EQ Wizard Support

Application notes on miniSHARC kit

Introducing the world of Digital Room Correction (DRC), a process where digital filters are used to correct speaker + room aberrations. A 3 step process yet an acoustical challenge where DSP & Math Gurus use all resources to solve this complex problem. The following lines will summarize the basics of room correction in a setup involving a PC/Mac with a measurement/filter generation software, a measurement microphone and an audio processor (OpenDRC).

In this application note, we will explain the difference between FIR ("finite impulse response") and IIR ("infinite impulse response") filtering.

rePhase is a Windows-based freeware program written by Thomas (aka "pos"), a long time miniDSP community member. rePhase generates finite impulse response (FIR) filters that "reverse" the phase shifts introduced by a loudspeaker crossover. rePhase can also generate linear-phase crossovers. With the aid of a real-time FIR filtering engine or "convolver" such as miniDSP's OpenDRC or miniSHARC, the result is a linear-phase loudspeaker system.

This tutorial will provide a walk-through of filter creation using Filter Hose to linearize a loudspeaker frequency and phase response. Data will be exported to MiniDSP OpenDRC.


There are yet no reviews for this product.

It's an honour to see Pat Brown from Synaudcon ( using the OpenDRC + rephase + REW for a comprehensive review of the influence of FIR filters! His review is available on and goes through a real life scenario of the advantage/limitations of FIR along with speaker design. A must read!


For more info on Synaudcon and the great learning/training sessions, make sure to check out their website.