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 light weight, 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 of 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-P 2018

Achelous 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 protection.

Technical specifications

General Acoustics

fres @ 15 VP 2.7 kHz ±10%

Acoustics in Coupler (IEC 60318-4)

SPL @ 250 Hz / 15 VP 116 dB ±3.0
SPL @ 1 kHz / 15 VP 117 dB ±3.0
THD @ 250 Hz / 1 Vrms (1.4 VP) 0.3% +0.3

Electronics

Capacity @ 1 kHz / 15 VP 39 nF ±20%

Mechanics

Size 6.7 x 4.7 x 1.58 mm

Achelous UT-P 2016

Achelous 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 VP 115 dB ±3.0
SPL @ 1 kHz / 15 VP 117 dB ±3.0
THD @ 250 Hz / 1 Vrms (1.4 VP) 0.2% +0.3

Electronics

Capacity @ 1 kHz / 15 VP 37 nF ±20%

Mechanics

Size 6.7 x 4.7 x 1.56 mm

Reference designs

Megaclite

Our reference design for in-ear applications, Megaclite, 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.

More about Megaclite

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