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EMC components: Low-distortion noise suppression filter for audio lines

  • World's lowest total harmonic distortion + noise (THD+N) of 0%
  • No sound quality degradation in audio lines
  • High rated current of 1.6 A suitable for speaker lines
EMC components: Low-distortion noise suppression filter for audio lines

May. 13, 2016

TDK Corporation presents the new MAF1608G noise suppression filter for audio lines. When inserted in audio lines, the new filter keeps THD+N of the audio signals to the world's lowest levels* of 0%. At the same time the miniature component (1.6 mm x 0.8 mm x 0.8 mm) features a high rated current of 1.6 A and a low DC resistance of 0.06 Ω. This makes the MAF1608G noise suppression filter optimally suited for use in speaker lines where high currents are required. These applications include earphones, speakers and microphones in devices such as smartphones, tablet PCs, and portable game consoles. The new component's high attenuation ensures effective noise suppression in audio applications.

By utilizing a ferrite material with a low distortion factor, TDK was able to reduce sound quality degradation to a level equal to that of a line without a noise filter. This makes it possible to implement noise protection while still extracting the full performance potential of the audio amplifier.

  • * As of May 2016, according to TDK data

Main applications

  • Audio lines (earphones, speakers, microphones) in devices such as smartphones, tablet PCs and portable game consoles

Main features and benefits

  • World's lowest total harmonic distortion + noise (THD+N) of 0%
  • High current rating of 1.6 A is suitable for speaker lines
  • Use of ferrite material with a low distortion factor drastically reduces audio distortion caused by filter insertion
  • High attenuation ensures effective noise suppression in audio applications

Key data

TypeImpedance [Ω]DC resistance [Ω]Rated current [A DC]THD+N [%]*
MAF1608GAD471C 470 typ. 0.06 typ. 1.6 0
  • * at 1 kHz, 8 Ω, 1 W

About TDK Corporation

TDK Corporation is a leading electronics company based in Tokyo, Japan. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK's portfolio includes electronic components, modules and systems* marketed under the product brands TDK and EPCOS, power supplies, magnetic application products as well as energy devices, flash memory application devices, and others. TDK focuses on demanding markets in the areas of information and communication technology and consumer, automotive and industrial electronics. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2016, TDK posted total sales of USD 10.2 billion and employed about 92,000 people worldwide.

  • * The product portfolio includes ceramic, aluminum electrolytic and film capacitors, ferrites, inductors, high-frequency components such as surface acoustic wave (SAW) filter products and modules, piezo and protection components, and sensors.

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Contacts for regional media

RegionContactPhoneMail
Japan Mr. Akira TESHIMA TDK Corporation
Tokyo, Japan
+813 6852-7102 pr@jp.tdk.com
ASEAN Ms. Jiang MAN
Mr. Shota KANZAKI
TDK Singapore (Pte) Ltd.Singapore +65 6273 5022 asean.inquiry@sg.tdk.com
Greater China Ms. Clover XU TDK China Co., Ltd.
Shanghai, China
+86 21 61962307 pr@cn.tdk.com
Europe Mr. Frank TRAMPNAU TDK Europe GmbH
Duesseldorf, Germany
+49 211 9077 127 frank.trampnau@eu.tdk.com
America Ms. Sara M. LAMBETH TDK Corporation of America
Irving, TX, USA
+1-972-409-4519 sara.lambeth@us.tdk.com

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