BA4558RFVM-TR

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BA4558RFVM-TR is an integrated circuit amplifier that belongs to the family of linear amplifiers, instrumentation, op amps, and buffer amps. As a quad-channel audio power amplifier, the BA4558RFVM-TR allows for a wide range of audio applications, ranging from medical equipment to car audio systems.The BA4558RFVM-TR consists of a 4-channel class A audio power amplifier and two 2-channel voltage followers, as well as associated outputs, inputs, and other components. Each channel is capable of delivering up to 5 Watts of output power into a 8-Ohm speaker, and the device has a total power handling capability of up to 20 Watts.The BA4558RFVM-TR has a typical quiescent supply current of 8mA and a maximum of 12mA. Its voltage supply range is from 6V to 36V, with a maximum voltage of 46V. Its input voltage range is from -10V to +10V, with a maximum voltage of up to 1.6V. The operating temperature range of the BA4558RFVM-TR is from -20°C to +85°C.In order to improve its audio performance, the BA4558RFVM-TR comes with some additional features. For example, it has a built-in low-cut filter to reduce unwanted low-frequency noise, as well as an automatic level control to reduce sound distortions caused by speaker power variations. Aside from these, the device also has thermal protection; short circuit, over current, and over voltage protection circuitry; a Class-D amplifier load protection; and a volume control potentiometer to adjust the output volume.The BA4558RFVM-TR‘s working principle is based on an inverting circuit, where a small current flows into the input and is amplified, inverted, and then outputted. The transistors are instrumental in the amplification of the signal, where they channel the voltage through their gate inputs, and the signal is further amplified by resistors and capacitors, until the signal is reversed at the output. The additions of low-cut filter and automatic level control all serve to reduce sound distortions and modify the signal levels.In conclusion, the BA4558RFVM-TR is a 4-channel audio power amplifier belonging to the family of linear amplifiers, instrumentation, op amps, and buffer amps. Its integrated features include a low-cut filter, an automatic level control, and other protection circuits, as well as a volume control potentiometer to adjust the output level. Its working principle is based on an inverting circuit, where a small current flows into the input and is amplified, inverted, and then outputted.

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