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 patented 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
2VRMS into a 1kΩ load
from a single 5V supply.
The MAX9722A EV kit also evaluates the MAX9722B.
Key Features
Applications/Uses
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)
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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