MAX9890BEBL+

Audio Special Purpose Overview

The MAX9890BEBL+ is a single-channel audio click-and-pop suppressor from Analog Devices (Maxim Integrated). It eliminates audible transients during power-up and power-down sequences for devices such as CODECs with integrated headphone amplifiers. The device controls the ramping of DC bias voltage on output-coupling capacitors to ensure no audible clicks or pops are present at the headphones. It operates on a single supply voltage of 2.7V to 5.5V.

Audio Special Purpose Feature Summary

• Single-channel click-and-pop suppression
• 36dB Click-Pop Suppression
• 2.7V to 5.5V Single-Supply Operation
• Clickless/Popless Startup/Power-Up and Shutdown/Power-Down
• Low-Power Shutdown Mode: 0.001µA
• THD+N < 0.003% Into 32Ω
• ±8kV ESD Protected Outputs (Human Body Model)
• Requires Only One 0.1µF Capacitor
• Low 14µA Supply Current
• Package: 8-pin TDFN (3mm x 3mm x 0.8mm)

Audio Special Purpose Applications

• Cell Phones
• High-End Notebook Audio
• PDAs
• Portable DVD Players
• Portable MP3 Players

Audio Special Purpose Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation. Note that the 'BL' suffix typically indicates an 8-pin TDFN package, while other suffixes may indicate UCSP packages. Ensure the procurement source provides valid traceability.

Audio Special Purpose Selection Notes

Select this component when single-channel click-pop suppression is required for low-voltage audio systems. The MAX9890B variant features a 330ms startup time suitable for coupling capacitors greater than 100µF. Verify that the system's power supply rails remain within the 2.7V to 5.5V range.

Audio Special Purpose Part Context

This part belongs to the Maxim Integrated audio specialty category, specifically designed to enhance audio quality by eliminating mechanical switching noises in portable consumer electronics. It complements audio amplifiers and codecs.