TPA6047A4RHBR Integrated Circuits (ICs)

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The TPA6047A4RHBR is a class D audio amplifier that is designed for handheld audio devices. A TPA6047A4RHBR amplifier has a wide frequency range, excellent signal-to-noise ratio, low power consumption, good linearity, and low distortion. Additionally, the TPA6047A4RHBR amplifier is capable of driving both loudspeakers and headphones with a single-ended audio power output of up to 36.5mW into a 16 ohm load and 72mW into an 8 ohm load.

A TPA6047A4RHBR amplifier is composed of three functional circuits: input protection circuitry, a Class D power amplifier, and power output protection circuitry. The amplifier’s integrated input protection circuitry prevents damage to the audio signal by providing current and voltage limiting before it is sent to the Class D amplifier which provides the voltage boost needed to drive the loudspeaker. The amplifier’s integrated power output protection circuitry provides current limiting to protect the loudspeaker from accidental excessive current levels in the event of an over-current situation. Lastly, the amplifier includes a thermal shutdown feature that protects the amplifier from excessive temperatures.

The TPA6047A4RHBR amplifier utilizes DirectDrive technology which eliminates unnecessary components such as input coupling caps and output filter inductors from the signal path. This technology reduces the size of the amplifier which allows it to be used in small form factor audio systems. Additionally, DirectDrive technology also reduces distortion and increases the amplifier’s efficiency.

The TPA6047A4RHBR amplifier is designed to drive a wide range of loudspeakers or headphones and provides excellent audio fidelity. The amplifier is capable of driving both 8 ohm and 16 ohm loads with 8 ohm loads being driven more efficiently than 16 ohm loads. The amplifier uses a Very High Frequency (VHF) oscillator which helps reduce the distortion of the audio signal by increasing the dominant frequency of the Class D amplifier. The amplifier also includes a unique DirectDrive ramping feature that helps protect the loudspeaker from damage during start-up and shut-down by gradually increasing or decreasing the output.

The TPA6047A4RHBR is an excellent option for audio applications where low power, low distortion, and excellent dynamic range are desired. The amplifier can be used to drive small to medium-sized loudspeakers or headphones. The amplifier can be used in mobile applications as well as in stationary audio systems. The use of DirectDrive technology ensures that the amplifier is both small and efficient whilst providing excellent audio fidelity.

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