Waterproof piezo speaker

20 July 2011 Analogue, Mixed Signal, LSI

Featuring a thickness of only 0,9 mm, Murata has launched an ultra-thin, waterproof piezoelectric speaker. Based on proprietary piezoelectric technology, the speaker is waterproof to IPX5/IPX7. It measures 19,5 by 14,1 by 0,9 mm and its rectangular shape reduces dead-space from designs.

Conventional methods of waterproofing dynamic speakers used waterproof sheets which covered the output sound holes, reducing sound quality. Murata’s approach incorporates a rubber film into the speaker itself, leaving the output sound holes open. The width of the metal frame housing the speaker has been increased to improve the seal between the metal frame and the chassis, preventing water penetration.

The new waterproof speaker – the VSLBG1914E1400-T0 – features average sound pressure level (SPL) of 92,0 ±3,0 dB (1500 Hz/2000 Hz/2500 Hz/3000 Hz average) with a resonant frequency of 1400 Hz ±20%. Since no magnets are used, there is no possibility of malfunctions caused by iron sand, or electromagnetic effects on magnetic sensors.

For more information contact Greg Parker, Avnet Kopp, +27 (0)11 809 6100, [email protected], www.avnet.co.za

Further reading:

Java Card-based solution
Future Electronics Analogue, Mixed Signal, LSI
The SECORA ID Key S USB, from Infineon Technologies, is a Java Card-based solution with USB and NFC connectivity for secured authentication and digital signatures.

Read more...

---

Digital isolators for I2C interfaces
Analogue, Mixed Signal, LSI
Würth Elektronik has expanded its range of digital isolators with 2-channel bidirectional isolators for I2C communication interfaces.

Read more...

---

Ultra-low-power smart metering
EBV Electrolink Analogue, Mixed Signal, LSI
ScioSense’s UFC23 sensor combines improved resolution and offset stability with ultra-low standby current, enabling high-end battery-powered water, heat, gas and leak detection meter designs.

Read more...

---

Industrial vibration sensing simplified
Altron Arrow Analogue, Mixed Signal, LSI
The IIS3DWBG1 from STMicroelectronics is a high performance, three-axis digital vibration sensor engineered for demanding industrial applications where accurate motion monitoring is essential.

Read more...

---

Understanding two key tools for cleaner serial data
Altron Arrow Editor's Choice Analogue, Mixed Signal, LSI
Understanding how pre-emphasis and equalisation works, and when to use one over the other, is critical when designing reliable high-speed systems.

Read more...

---

Smart IMU for high/low-g acceleration
Altron Arrow Analogue, Mixed Signal, LSI
The ISM6HG256X is a 6-axis intelligent inertial measurement unit that enables smart motion sensing, edge computing, and real-time awareness.

Read more...

---

Compact Schottky diodes increase efficiency
RS South Africa Analogue, Mixed Signal, LSI
Gen 3 SiC Schottky diodes from Vishay in the compact SlimSMA HV package increase efficiency while enhancing electrical insulation.

Read more...

---

Silanna launches Plural ADC EVKs
Analogue, Mixed Signal, LSI
Silanna Semiconductor has released its first evaluation kits for the Plural data converter family to offer the fastest, most cost-effective way to evaluate and deploy high-performance ADCs.

Read more...

---

High speed, low noise 2 A driver
iCorp Technologies Analogue, Mixed Signal, LSI
The SGM8423-2A from SGMICRO is a high efficiency, class AB, low distortion power line driver optimised to accept a signal from a Power Line Carrier modem.

Read more...

---

Online sensor technology hub
Analogue, Mixed Signal, LSI
Mouser’s sensor content hub offers an extensive collection of articles, blogs, eBooks, and product information from its technical experts and leading manufacturing partners.

Read more...

---