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LN4822 - 25mW Cap-Free Stereo Headphone Amplifier

General Description

The LN4822 stereo headphone driver is designed for portable equipment where board space is at a premium.

Differential stereo inputs and built-in resistors set the device gain, further reducing external component count.

Gain is selectable at -6 dB, 0 dB, 3 dB or 6 dB.

Key Features

  • fully differential inputs to reduce system noise pickup between the audio source and the headphone amplifier. The high power supply noise rejection performance and differential architecture provides increased RF noise immunity. For single-ended input signals, connect INL+ and INR+ to ground. The device has built-in pop suppression circuitry to completely eliminate disturbing pop noise during turn-on and turn-of.

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Datasheet Details

Part number LN4822
Manufacturer natlinear
File Size 402.86 KB
Description 25mW Cap-Free Stereo Headphone Amplifier
Datasheet download datasheet LN4822 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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25mW Cap-Free Stereo Headphone Amplifier LN4822 ■ GENERAL DESCRIPTION The LN4822 stereo headphone driver is designed for portable equipment where board space is at a premium. Differential stereo inputs and built-in resistors set the device gain, further reducing external component count. Gain is selectable at -6 dB, 0 dB, 3 dB or 6 dB. The amplifier drives 25 mW into 16Ω speakers from a single 2.3 V supply. The LN4822 provides a constant maximum output power independent of the supply voltage, thus facilitating the design for prevention of acoustic shock. The LN4822 features fully differential inputs to reduce system noise pickup between the audio source and the headphone amplifier.