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MAX9890 - Audio Click-Pop Suppressor

Datasheet Summary

Description

The MAX9890 provides click-and-pop suppression for devices such as CODECs with test integrated headphone amplifiers that lack a clickless/popless startup/power-up or shutdown/power-down.

Features

  • a 200ms startup time for use with up to 100μF coupling capacitors. The MAX9890B features a 330ms startup time for use with greater than 100μF coupling capacitors. The MAX9890 consumes 14μA of supply current and 0.001μA in shutdown, while contributing less than 0.003% THD+N into a 32Ω load. ESD (Human Body Model) protection circuitry on the outputs protect the MAX9890 and devices further up the signal chain from ESD strikes up to ±8kV. The MAX9890 is available in a miniature (1.5mm x 1.5mm x 0.6m.

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Datasheet preview – MAX9890

Datasheet Details

Part number MAX9890
Manufacturer Maxim Integrated
File Size 1.22 MB
Description Audio Click-Pop Suppressor
Datasheet download datasheet MAX9890 Datasheet
Additional preview pages of the MAX9890 datasheet.

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Full PDF Text Transcription

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MAX9890 EVALUATION KIT AVAILABLE Audio Click-Pop Suppressor General Description The MAX9890 provides click-and-pop suppression for devices such as CODECs with test integrated headphone amplifiers that lack a clickless/popless startup/power-up or shutdown/power-down. The device controls the ramping of the DC bias voltage on the output-coupling capacitors and the application of the audio signal to ensure that no audible transients are present at the headphones. The MAX9890A features a 200ms startup time for use with up to 100μF coupling capacitors. The MAX9890B features a 330ms startup time for use with greater than 100μF coupling capacitors. The MAX9890 consumes 14μA of supply current and 0.001μA in shutdown, while contributing less than 0.003% THD+N into a 32Ω load.
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