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2. Low-noise amplifier - Wikipedia

   en.wikipedia.org/wiki/Low-noise_amplifier

   A low-noise amplifier (LNA) is an electronic component that amplifies a very low-power signal without significantly degrading its signal-to-noise ratio (SNR). Any electronic amplifier will increase the power of both the signal and the noise present at its input, but the amplifier will also introduce some additional noise.

3. Sound World Solutions - Wikipedia

   en.wikipedia.org/wiki/Sound_World_Solutions

   Sound World Solutions’ design platform relies on inexpensive off-the-shelf Bluetooth technology, yielding a hearing device that costs less than a tenth the price of a conventional hearing aid. [7] Rather than disguise its hearing device as a hearing aid, Sound World Solutions designed it to look and function as a Bluetooth device, which is ...

4. Tower Mounted Amplifier - Wikipedia

   en.wikipedia.org/wiki/Tower_Mounted_Amplifier

   A Tower Mounted Amplifier (TMA), or Mast Head Amplifier (MHA), is a low-noise amplifier (LNA) mounted as close as practical to the antenna in mobile masts or base transceiver stations. A TMA reduces the base transceiver station noise figure (NF) and therefore improves its overall sensitivity ; in other words the mobile mast is able to receive ...

5. Thin-film bulk acoustic resonator - Wikipedia

   en.wikipedia.org/wiki/Thin-film_bulk_acoustic...

   [31] [32] Therefore, monolithic solutions have not been progressed as much as module solutions in commercial applications. Typical module solutions are a power amplifier- duplexer module (PAD), or a low-noise amplifier (LNA)-filter module where FBAR(s) and the related circuitry are packaged in the same package possibly on a separate module ...

6. List of LM-series integrated circuits - Wikipedia

   en.wikipedia.org/wiki/List_of_LM-series...

   Power op-amp with a maximal current output of 3 amperes [23] LM709 Yes General-purpose op-amp [24] LM741 LM709 General-purpose op-amp. [25] Widely used. LM747: Yes General-purpose dual op-amp. [26] LM748 General-purpose op-amp with external compensation [27] LM833 Dual high-speed audio operational amplifiers [28] LM837 Low-noise quadruple op ...

7. Bioamplifier - Wikipedia

   en.wikipedia.org/wiki/Bioamplifier

   The amplitude of ECG ranges from 0.3 to 2 mV for the QRS complex, which is used to determine the interbeat interval from which the frequency is derived. The typical requirements for the amplifiers to be used in ECG include: [1] Low internal noise (<2 mV) High Input Impedance (Z in > 10 MΩ) Bandwidth ranging from 0.16–250 Hz

8. The best wireless headphones for seniors in 2025 - AOL

   www.aol.com/lifestyle/best-wireless-headphones...

   Active Noise Canceling (ANC): The hot headphone feature of the 21st century is active noise canceling, otherwise known as ANC. Flip a switch (or press a button) and the earpieces magically reduce ...

9. Lock-in amplifier - Wikipedia

   en.wikipedia.org/wiki/Lock-in_amplifier

   A lock in amplifier uses a multiplier and a low pass filter to compare a reference signal against a noisy signal. A lock-in amplifier is a type of amplifier that can extract a signal with a known carrier wave from an extremely noisy environment. Depending on the dynamic reserve of the instrument, signals up to a million times smaller than noise ...