Murata Manufacturing Co., Ltd. recently introduced, for the first time,
(multilayer-type ) noise filters specifically designed for suppressing radiation noise in audio lines without affecting the sound quality. These new models added to its NFZ18SM_SZ series, are compatible with automotive information devices.
As electrification of automobiles advances, there has been increasing demand for noise suppression in the audio lines of automotive information devices .In these applications, noise suppression products must satisfy two conditions: 1) they must suppress the radiation noise in audio lines, and 2) they must have no adverse effect on the sound quality. This is why there is a need for noise suppression products that have been specifically designed for application in audio lines and for which the sound quality has been verified.
Total harmonic distortion + noise characteristics (THD+N)
These characteristics serve as an indicator for assessing both the distortion rate and noise of audio signals simultaneously. The lower the value, the less the sound quality is adversely affected.
The THD+N characteristics have been dramatically improved in the new products compared with the company’s existing noise suppression products.
Available in the 0603 inch (1.6 x 0.8 mm) package size, the new products achieve a high rated current in excess of 1A.
Suppression of radiation noise in the audio lines of automotive information devices
Characteristics
Correlation between power level of NFZ18SM501SZ10 and its THD+N characteristics (at 1 kHz), and comparison of THD+N characteristics (at 1 kHz) between the NFZ18SM_SZ series and other noise filters
Production
주식 회사 무라타 제작소는 기능성 세라믹을 기반으로 전자 디바이스의 연구 개발 • 생산 • 판매를 행하고 있으며, 재료부터 제품까지 일관 생산 체제를 구축하고 있습니다. 또한, 무라타 제품의 90%이상은 해외에서 판매되고 있으며, 국내외로 글로벌 회사를 전개하고 있습니다.