TPA6041A4

具有 DirectPathTM 耳机和稳压器的 2W 立体声音频功率放大器

The is a stereo audio power amplifier and DirectPath™ headphone amplifier in a thermally enhanced, space-saving, 32-pin QFN package. The speaker amplifier is capable of driving 2.1 W per channel continuously into 4- loads at 5 V. The headphone amplifier achieves a minimum of 85 mW at 1% THD+N from a 5-V supply. A built-in internal 4-step gain control for the speaker amplifier and a fixed -1.5 V/V gain for the headphone amplifier minimizes external components needed.

Independent shutdown control and dedicated inputs for the speaker and headphone allow the TPA6041A4 to simultaneously drive both headphones and internal speakers. Differential inputs to the speaker amplifiers offer superior power-supply and common-mode noise rejection.

.

Microsoft™ Windows Vista™ Compliant

.

Fully Differential Architecture and High PSRR Provide Excellent RF Rectification Immunity

.

2.1-W, 1% THD+N Into 4- Headphones From 5-V Supply

.

DirectPath™ Headphone Amplifier Eliminates Output Capacitors1

.

Internal 4-Step Speaker Gain Control: 10, 12, 15.6, 21.6 dB and Fixed -1.5-V/V Headphone

.

3.3-V Low Dropout Regulator for CODEC

.

Independent Shutdown Controls for Speaker, Headphone Amplifier, and Low Dropout Regulator LDO

.

Output Short-Circuit and Thermal Protection

.

APPLICA ONS

.

Notebook Computers

.

Portable DVD

1 US Patent Number 5289137

DirectPath, PowerPAD are trademarks of Texas Instruments.

Microsoft, Windows Vista are trademarks of Microsoft Corporation.