The MAX9722A evaluation kit (EV kit) is a fully assembled and tested circuit board that uses the MAX9722A to drive a stereo headphone in portable audio applications. The MAX9722A is a differential stereo headphone driver with DirectDrive®. Maxim's DirectDrive technology eliminates the need for DC-blocking capacitors on the output of the amplifier. Designed to operate from a 2.4V to 5.5V DC power supply, the EV kit is capable of delivering up to 70mW per channel into a 16Ω load or 130mW per channel into a 32Ω load and 0.009% THD+N at 1kHz.

The EV kit can also be used as a line driver that provides 2V_RMS into a 1kΩ load from a single 5V supply. The MAX9722A EV kit also evaluates the MAX9722B.

Key Features

2.4V to 5.5V Single-Supply Operation
Drives Two Channels at 70mW per Channel into a 16Ω load, 130mW per Channel into a 32Ω load
≤ 2µA Shutdown Current
Evaluates the MAX9722A or MAX9722B (IC and Component Replacement Required)
Small 16-Pin TQFN (3mm x 3mm) Package
Available in 16-Pin TSSOP Package
Fully Assembled and Tested

Applications/Uses

Cell Phones
Flat-Panel Monitors
MP3 Players
Notebook and Desktop PCs
PDAs
Portable Audio Equipment
Smartphones

Design Resources

Quality and Environmental Data

Lead-Free Package Tin (Sn) Whisker Reports

Quality And Environmental

Device	Fab Process	Technology	Sample size	Rejects	FIT at 25°C	FIT at 55°C

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

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