MEMS speaker Achelous

Achelous is a piezo MEMS speakers that is ideal for in-ear audio solutions such as wired earphones or true wireless systems. Thanks to its small size and lightweight, Achelous offers maximum flexibility for outstanding design approaches. As a single transducer with a wide bandwidth, it enables high-res audio applications without the need for additional transducers. Achelous produces tangible, clear and rich sound, immersing the listener into whatever audio content they are consuming.

Features

Full bandwidth

Full bandwidth can be achieved with a single MEMS speakers.

Seamless integration

Easy integration into modern audio systems and MEMS microphones. It is also capable of operating as a piezo microphone.

Enables innovative IDs

MEMS speakers enable modern lightweight and ergonomic designs for wired earphones and TWS.

Unmatched sound quality

MEMS speakers produce clear and vibrant sound immersing the listener into their audio environment.

Achelous UT-P2018

Ganymede MEMS speakers

Achelous UT-P2018 provides higher excursion and more damping ideal for in-ear designs. In free-field, the resonance is lower than Adap, which allows a lower cross over frequency. This version of Achelous features a metal cover to enhance handling.

Technical specifications

General acoustics

fres @ 15 VP 2.7 kHz±15%

Acoustics in Coupler (IEC 60318-4)

SPL @ 250 Hz / 15 VP116 dB ±3.0
SPL @ 1 kHz / 15 VP117 dB ±3.0
THD @ 250 Hz / 1 Vrms (1.4 VP)0.3%+0.3

Electronics

Capacity @ 1 kHz / 15 VP39 nF±20%

Mechanics

Size6.7 x 4.7 x 1.58 mm

Achelous UT-P2016

Achelous - a USound MEMS speaker for crisp and clear sound reproduction

Achelous UT-P2016 provides higher excursion and more damping ideal for in-ear designs. In free-field, the resonance is lower than Adap, which allows a lower cross over frequency.

Technical specifications

General acoustics

fres @ 15 VP 2.7 kHz±10%

Acoustics in Coupler (IEC 60318-4)

SPL @ 250 Hz / 15 VP115 dB ±3.0
SPL @ 1 kHz / 15 VP117 dB ±3.0
THD @ 250 Hz / 1 Vrms (1.4 VP)0.2%+0.3

Electronics

Capacity @ 1 kHz / 15 VP37 nF±20%

Mechanics

Capacity @ 1 kHz / 15 VP39 nF±20%

Reference design:
Megaclite 4.0

Our reference design for in-ear applications, Megaclite 4.0, is a leap forward in wired and wireless earphones. These earphones deliver a distinctive sound quality as well as a clean and strong bass response.