Maxim Integrated Products has released the MAX9750C, an integrated audio amplifier for applications including notebook PCs, flat-panel displays, and portable DVD players. It is available from Arrow Electronics .
The MAX9750C combines the benefits of Maxim's DirectDrive headphone amplifier technology with a stereo, 2.6W, bridge-tied load (BTL) audio amplifier for a low cost, low component-count audio-amplifier.
The DirectDrive headphone amplifier produces a ground-referenced output from a single supply. This eliminates the two bulky dc-blocking capacitors usually required between the amplifier and headphone.
The MAX9750C operates from a single 4.5V to 5.5V supply, produces up to 2.6W into a 4Ω load, and features 90dB PSRR. 0.01% THD+N ensures clean, high-fidelity audio playback. Click-and-pop suppression eliminates audible transients on power and shutdown cycles. The device also includes selectable gain levels, dc volume control, and a beep input.
The MAX9750C is available in a small 28-pin TQFN package and includes short-circuit and thermal overload protection. The device operates over the extended temperature range from -40°C to +85°C.