Datasheet MAX4409ETP+ - Maxim Audio Amplifiers 80 mW DirectDrive Stereo Headphone Amp

Maxim MAX4409ETP+

Part Number: MAX4409ETP+

Detailed Description

Manufacturer: Maxim

Description: Audio Amplifiers 80 mW DirectDrive Stereo Headphone Amp

Docket:
19-2842; Rev 2; 11/07
80mW, DirectDrive, Stereo Headphone Amplifier with Common-Mode Sense
General Description
The MAX4409 stereo headphone amplifier combines Maxim's DirectDriveTM architecture and a commonmode sense input, which allows the amplifier to reject common-mode noise.

Conventional headphone amplifiers require a bulky DC-blocking capacitor between the headphone and the amplifier. DirectDrive produces a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors, which saves cost, board space, and component height. The common-mode voltage sensing corrects for any difference between SGND of the amplifier and the headphone return. This feature minimizes ground-loop noise when the HP socket is used as a line out connection to other grounded equipment, for example, a PC connected to a home hi-fi system. The MAX4409 draws only 5mA of supply current, delivers up to 80mW per channel into a 16 load, and has a low 0.002% THD+N. A high 86dB powe

Specifications:

Common Mode Rejection Ratio (Min): 96 dB
Input Offset Voltage: 0.5 mV
Input Signal Type: Differential
Maximum Power Dissipation: 2051 mW
Mounting Style: SMD/SMT
Operating Supply Voltage: 1.8 V to 3.6 V
Operating Temperature Range: - 40 C to + 85 C
Output Power: 80 mW
Package / Case: TQFN-20
Packaging Type: Tube
Product: General Purpose Audio Amplifiers
Supply Current: 5 mA
Supply Voltage Range: 1.8 V to 3.6 V
THD plus Noise: 0.002 %
RoHS: Yes