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LA4820M - Monaural Speaker/Stereo Headphone Power Amplifier

Description

Pin No.

1 Pin name R.F REF (Ripple Filter) Pin voltage [V] 5.5 Internal equivalent circuit Remarks c LPF pin for ripple filter reference bias.

c Ripple rejection ratio can be adjusted through an external capacitor.

Features

  • c Power-saving headphone jack plug-in/out detection function on chip that electronically switches between the stereo headphone amplifier and the monaural BTL amplifier according to jack plug-in/out. c The monaural amplifier has, as output control functions, a built-in output limiter that permits adjustment in accordance with the speaker impedance and a non-clipping circuit that outputs a sine wave suited to the output D range, while the headphone amplifier has a built-in user-friendly PVSS (Peak.

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Datasheet preview – LA4820M

Datasheet Details

Part number LA4820M
Manufacturer Sanyo
File Size 677.18 KB
Description Monaural Speaker/Stereo Headphone Power Amplifier
Datasheet download datasheet LA4820M Datasheet
Additional preview pages of the LA4820M datasheet.

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Full PDF Text Transcription

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Ordering number: EN5205A Monolithic Linear IC LA4820M Monaural Speaker/Stereo Headphone Power Amplifier Overview The LA4820M compound power IC is designed for portable information processing equipment, such as electronic book players and personal notebook computers, and provides on chip headphone stereo amplifier and monaural speaker amplifier functions required of such devices. This system IC also provides on chip a power-saving headphone jack plug-in/out detection function, which automatically switches the amplifiers, and an optimum volume level controller.
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