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MAX9722A - 130mW Stereo Headphone Amplifiers

General Description

The MAX9722A/MAX9722B stereo headphone amplifiers are designed for portable equipment where board space is at a premium.

Key Features

  • o 2.4V to 5.5V Single-Supply Operation o High PSRR (80dB at 217Hz) Eliminates LDO o No Bulky DC-Blocking Capacitors Required o Ground-Referenced Outputs Eliminate DC Bias Voltage on Headphone Ground Pin o No Degradation of Low-Frequency Response Due to Output Capacitors o Differential Inputs for Enhanced Noise Cancellation o Adjustable Gain (MAX9722A) or Fixed -2V/V Gain (MAX9722B) o 130mW per Channel into 32Ω o Low 0.009% THD+N o Integrated Click-and-Pop Suppression o Low Quiescent Current (5.5.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX97220A Differential Input DirectDrive Line Drivers/Headphone Amplifiers
MAX97220B Differential Input DirectDrive Line Drivers/Headphone Amplifiers
MAX97220C Differential Input DirectDrive Line Drivers/Headphone Amplifiers
MAX97220D Differential Input DirectDrive Line Drivers/Headphone Amplifiers
MAX9722B 130mW Stereo Headphone Amplifiers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com 19-3049; Rev 0; 10/03 ILABLE N KIT AVA EVALUATIO 5V, Differential Input, DirectDrive, 130mW Stereo Headphone Amplifiers with Shutdown General Description The MAX9722A/MAX9722B stereo headphone amplifiers are designed for portable equipment where board space is at a premium. The MAX9722A/MAX9722B use a unique, patented DirectDrive architecture to produce a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors, which saves cost, board space, and component height. Additionally, the gain of the amplifier is set internally (-2V/V, MAX9722B) or adjusted externally (MAX9722A). The MAX9722A/MAX9722B deliver up to 70mW per channel into a 16Ω load or 130mW into a 32Ω load and have low 0.009% THD+N.