Products/Services for Tunable Audio Bandpass Filters
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Optical Bandpass Filters - (119 companies)Optical bandpass filters are optical filters that pass one or more specified wavelength band(s) while blocking others. Bandpass filters are referred to by the wavelength range, also known as the pass band, which they are designed to transmit...ApplicationFilter ShapeFilter Surface Quality -
RF Filters and Microwave Filters - (490 companies)RF filters and microwave filters are devices that pass or reject signals by frequency. Basic types include bandpass filters, band reject filters, low pass filters, and high pass filters. RF filters and microwave filters are devices that pass... -
Active Filters - (70 companies)...the unwanted DC voltage in amplifier systems, if desired. Band-pass filters are found in TV and radio circuits. They attenuate or suppress signals with frequencies outside a band of frequencies. Band-reject, or notch filters attenuate or suppress signals... -
Signal Filters - (128 companies)Signal filters block or decrease (attenuate) unwanted frequencies or signal wave characteristics. There are several basic types of signal filters. Low pass filters block or attenuate signals at frequencies above a specified cutoff frequency... -
Active Band Pass Filters - (29 companies)...by. The critical frequencies are determined as follows: Adding the frequency responses of these stages together results in the frequency response of the band-pass filter, as shown below. The amplitude and phase are given by the following equations. A Bode... -
Board Mount RF Filters - (64 companies)...design determines the amount of insertion loss and phase shift for signals that pass through the filter. There are several basic types of RF filters: bandpass and band reject. Bandpass filters are active or passive circuits that pass signals from...
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Fiber Optic Filters - (49 companies)...be fine-tuned to select very narrow wavelength ranges. Fiber optic filters are used extensively in optical telecommunications networks and aerospace applications. Types of Fiber Optic Filters. Tunable bandpass filters are fiber optic filters used...
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RF Band Pass Filters - (172 companies)...of RF band pass filters. Performance specifications for bandpass filters include specified frequency, bandwidth, ripple, insertion loss, and voltage standing wave ratio. Specified frequency is the center frequency. Bandwidth is the range of frequencies...
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EMI Filters and RFI Filters - (438 companies)Electromagnetic (EMI) filters and radio frequency interference (RFI) filters purify signals of unwanted noise by attenuating the high-frequency RFI (typically 150kHz and up) and passing the low frequency EMI. Electromagnetic interference (EMI...
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Spectral Filters - (25 companies)Spectral filters are used to selectively transmit light according to its wavelength. They are not to be mistaken with color filters, which can be differentiated by an associated schott glass number. Spectral filters are used to selectively transmit...
Product News
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Avantier Inc.
Bandpass Filters Bandpass Filters. Bandpass filters are optical filters designed to transmit a defined spectral band while blocking or attenuating wavelengths outside that range. Depending on the application, the passband may be narrower than 1 nm for laser, fluorescence, or spectroscopy systems, or broad enough to span tens to hundreds of nanometers for imaging, sensing, and illumination. Bandpass filters typically use thin-film interference coatings on substrates such as optical glass, fused silica, sapphire... (read more) -
CASTECH, Inc.
Acousto-Optic Tunable Filters Engineers and optical system designers often face slow wavelength tuning, mechanical limitations, and signal instability, which hinder high-speed spectral analysis and precise laser applications. CASTECH Acousto-Optic Tunable Filters overcome these challenges with solid-state TeO2 and LiNbO3 crystals, enabling rapid electronic wavelength selection without mechanical movement. Key features include non-collinear and quasi-collinear designs, wide tuning range (UV to IR), high diffraction... (read more)Browse Laser Optics, Heads, and Beam Delivery Components Datasheets for CASTECH, Inc. -
CASTECH, Inc.
Acousto-Optic Tunable Filter The Acousto-Optic Tunable Filter (AOTF) from CASTECH Inc. delivers fast electronic wavelength tuning, high spectral precision, and stable optical filtering for advanced photonic and analytical systems. Supporting wavelength ranges from 400 -1700 nm, the module enables rapid wavelength selection without mechanical movement, improving optical response speed and long-term system reliability. The AOTF offers spectral resolution down to <=0.25 nm and diffraction efficiency up to >=85%, making... (read more)Browse Laser Optics, Heads, and Beam Delivery Components Datasheets for CASTECH, Inc. -
Knowles
Bandpass Filters Designed For 5G Knowles Precision Devices DLI brand B012MD5S is a surface mountable catalog bandpass filter designed for the 5G band. This filter utilizes DLI 's low loss temperature stable materials which offer small size and minimal performance variation over temperature. The catalog BPF 's are offered in a variety of frequency bands, which offers a drop in solution with highly repeatable performance. FEATURES. Small Size. Shielded Component. Solder Surface Mount Package. Moisture Sensitivity Level: MSL1... (read more) -
Changchun Yutai Optics Co., Ltd.
Visible Bandpass Filters Characteristics of visible bandpass filters. Passband. Narrowband: passes only a few nanometers to tens of nanometers (e.g., peak 450 +- 10 nm) and is used for precision spectral analysis. Broadband: passes a wide range (e.g. 400-700nm) and is suitable for routine imaging. Transmittance. High quality filters with peak transmittance up to 90% or more and steep edges (narrow transition bands). Blocking. Optical densities (OD) up to OD4 (i.e., transmittance < 0.01%) in resistive band regions (e.g. (read more)Browse Optical Mirrors Datasheets for Changchun Yutai Optics Co., Ltd. -
Alluxa, Inc.
ULTRA-Narrow Bandpass Filters Alluxa Ultra Narrow Bandpass Optical Filters For Sale. ULTRA-Narrow Bandpass Filters. With the narrowest bandwidths and highest transmission in the industry, Alluxa 's thin-film, ultra-narrow bandpass filters will optimize the performance of laser based systems. Ultra-narrow filters are ideal for use as laser line, laser cleanup, or laser excitation filters in applications such as fluorescence microscopy, flow cytometry, and DNA sequencing. They are also highly resistant to laser damage, which... (read more)Browse Optical Bandpass Filters Datasheets for Alluxa, Inc. -
CASTECH, Inc.
Acousto-Optic Tunable Filters for Optical Systems As optical systems continue moving toward higher integration, dynamic wavelength selection, and real-time spectral analysis, filtering technologies require faster response, flexible control, and stable optical performance. Acousto-optic tunable filters (AOTFs) use acousto-optic interaction principles to achieve electronically controlled wavelength selection without mechanical movement, improving speed and system reliability. Electronic Wavelength Selection:Enables rapid and programmable... (read more)Browse Laser Optics, Heads, and Beam Delivery Components Datasheets for CASTECH, Inc. -
Anatech Electronics, Inc.
10 MHz LC Bandpass Filter 10 MHz LC Bandpass Filter. The 10 MHz LC Bandpass Filter is designed for precise frequency selection with excellent out-of-band rejection. Centered at 10 MHz, it offers a >200 kHz 3 dB bandwidth and a 9.9 -10.1 MHz passband, ensuring stable signal performance with low VSWR. Housed in a compact SMA-connected package, it is built to withstand harsh environmental conditions, including wide temperature ranges, shock, and vibration, making it suitable for demanding RF applications. Electrical... (read more)Browse RF Band Pass Filters Datasheets for Anatech Electronics, Inc. -
Marki Microwave LLC
Passive Glass 990MHz Surface Mount Bandpass Filter The MFBP-00164GSM1 is a surface mount bandpass filter delivering high rejection and offering a 430 to 990 MHz passband with just 0.9 dB insertion loss. Advanced glass substrate technology enables smaller designs, tight unit-to-unit consistency, and accurate simulation using provided S2P data. (read more)Browse RF Band Pass Filters Datasheets for Marki Microwave LLC -
Chengdu Filter Technology Co., Ltd.
Custom RF Cavity Bandpass Filter Manufacturing Modern RF and microwave systems require precise frequency control, low signal loss, and strong interference rejection to maintain reliable signal performance. Chengdu Filter cavity bandpass filters are designed for demanding RF applications, offering 10 MHz to 50 GHz frequency coverage with customizable bandwidth options from less than 0.1% to over 110%. Cavity filter designs provide lower insertion loss, sharper rejection characteristics, and narrower bandwidth capability compared... (read more)Browse RF Filters and Microwave Filters Datasheets for Chengdu Filter Technology Co., Ltd.
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MOSFET-C filter with on-chip tuning and wide programming range
The circuit presented in this paper, a tunable bandpass filter for the audio range, has been designed and implemented fol- lowing a MOSFET-C approach [4], making extensive use of the well-known MOS resistive circuit (MRC) for the implementa- tion of …
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http://dspace.mit.edu/openaccess-disseminate/1721.1/53554
Low-power, wide-dynamic-range bandpass filters tunable in the audio -frequency range are an important component in cochlear im- plant processors and other biomedical devices [1], [2].
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Models of hearing
… order to explain this remarkable insensitivity of the ear to phase and thus to the signal waveform, Ohm and Helmholtz proposed the following model: 1) the ear has a setof tuned “ bandpass filters ” covering the audio frequency range, and 2 …
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http://dspace.mit.edu/bitstream/handle/1721.1/29103/34312128-MIT.pdf?sequence=2
Figure 2-4: Ripple occurs when the bandpass filters are not in tune with the audio signal.
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History of Telegraphy
At the receiving end a set of bandpass filters , each tuned to the relevant audio frequency, was arranged so as to separate out the individual encoded Morse signals from the multiplexed transmission [42].
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Design of a micropower current-mode log-domain analog cochlear implant
To design a bandpass filter which is tuned in the range of audio frequency (20 Hz to 20 kHz), and to integrate it onto a single chip operating in micropower mode, a very elegant choice is to implement it with the log …
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Control and observation of analog nodes in mixed-signal boards
ABSINT was employed in the test of a tuneable bandpass filter (central frequency around 10 kHz) of an audio range infrared emitter/receiver circuit.
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Fluctuations in Humidity, Temperature, and Horizontal Wind as Measured by a Subcloud Tethered-Balloon System
Receiver output is fed to a highly selective bandpass filter tuned to the frequency of one of three possible audio tones that may have been switch selected to modulate the command transmitter at the ground station.
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Analysis of a quartz crystal microbalance with coatings of finite viscosity
The null balance of the bridge was indicated by a Levell microvoltmeter connected to the output of a bandpass audio filter set to the AF modulator frequency which filtered the output signal from a tuned Eddystone receiver (figure 1).
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Scanner setup and reconstruction for three-dimensional magnetic particle imaging
… for the scanning axes are generated by a D/A converter card (NI PCI-6733, 3x 16-bit @ 1 MS/s), amplified by three audio power amplifiers (img StageLine … … passed through a resonating band- pass filter network (BPF) tuned to drive field frequencies …
