Here’s how smartphone speaker amplifiers actually work to improve audio quality ... into “classes” based on their transistor and circuit design, each with its own pros and cons for linearity ...

They’re no good for audio but find a use in RF power amplifiers, where LC circuits filter out the resulting harmonics.) Most Hackaday readers will be familiar with the idea of pulse width ...

Take note that the circuit C is to be connected between pins 1 and 5 of the IC. The power output is around 550 mW at 16 ohm speaker impedance. This audio frequency amplifier is ideal for small battery ...

Usually targeted at audio applications, these circuit blocks find homes in all types of designs. Here’s a quick study of their operation and properties. Two of the most often used amplifier ...

Every smartphone has both a built-in amplifier and digital-to-analog converter (DAC). The amplifier cranks the audio signal to a level so that your headphones (or the smartphone’s speakers) can ...

MIT Technology review reports that startup Eta Devices is bench testing a new power amplifier chip that consumes less power than those currently found in smartphones and base stations. Power ...

These are all factors driving consumers’ desire for better audio quality from their smartphones. Higher Loudness, Improved Dynamic Range, Longer Battery Life The CS35L45 smart power amp features ...