MAX9890BETA/V+T

Audio Special Purpose Overview

The MAX9890BETA/V+T is an audio click-and-pop suppressor manufactured by Analog Devices (Maxim Integrated). It provides transient suppression for CODECs and headphone amplifiers lacking integrated startup control. The device features a 330ms turn-on time suitable for coupling capacitors exceeding 100μF. Operating on a single supply from 2.7V to 5.5V, it delivers significant click-pop reduction with less than 0.003% THD+N into a 32Ω load. Supply current is 14μA during operation.

Audio Special Purpose Feature Summary

• Provides click-and-pop suppression for audio signal paths
• Ultra-low power consumption: 14μA active current
• Operates on 2.7V to 5.5V single supply
• Low THD+N of 0.003% into 32Ω load
• Available in 8-TDFN package

Audio Special Purpose Applications

• Portable audio systems
• Notebook computers
• Cell phones and PDAs
• MP3 players

Audio Special Purpose Procurement Notes

Verify the suffix /V indicates automotive qualification (AEC-Q100) if required by the specific application variant. Confirm the BETA variant specifies the 330ms turn-on time required for output coupling capacitors greater than 100μF. Ensure the package matches the 8-TDFN (3x3) specification with exposed pad. Note that some distributors may list this part as obsolete or limited stock; verify current availability status with the manufacturer or authorized distributor.

Audio Special Purpose Selection Notes

Select the MAX9890BETA/V+T over the 'A' variant when the application requires support for output coupling capacitors larger than 100μF due to its extended 330ms ramp-up time. Verify that the system operates within the specified -40°C to +85°C temperature range and utilizes a single supply voltage between 2.7V and 5.5V.