MAX9890BETA+T

The MAX9890BETA+T is an audio click-pop suppressor in 8 pin TDFN package. It provides click-and-pop suppression for devices such as CODECs with integrated headphone amplifiers that lack a clickless/popless start-up/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 MAX9890B features a 330ms start-up 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 32ohm load. ESD (Human Body Model) protection circuitry on the outputs protects the MAX9890 and devices further up the signal chain from ESD strikes up to ±8KV. Typical applications include high-end notebook audio, PDAs, portable DVD players, cell phones and portable MP3 players.

• Supply voltage range is 2.7V to 5.5V
• Operating temperature range from -40°C to 85°C
• 36dB click-pop suppression
• Switch turn on time is 330ms

Applications

Audio, Portable Devices

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party