TI’s Class-G headphone amplifiers improve music playback time by 20 percent
TI’s new TPA6140A2 and TPA6141A2 25-mW Class-G stereo headphone amplifiers improve system-level music playback time by 20 percent over Class-AB technology in the best-in-class music phones shipping today. DirectPath™ technology eliminates the need for large DC-blocking capacitors and pop-suppression circuitry improves the listening experience. Small package size, ultra-low power consumption and high audio fidelity makes these devices ideal for portable applications such as mobile/smart phones and MP3 players. That's High Performance Analog>>Your Way™
Consume 0.6-mA/channel quiescent current and deliver 5 mW/channel into a 32-Ω load, while keeping the total supply current below 5 mA
Enable energy-efficient system when coupled with TI’s low-power audio converters, speaker amplifiers, OMAP™ 3 processors and TMS320C550x and TMS320C540x devices
Variable and fixed gain options:
TPA6140A2: –59-dB to +4-dB variable gain range programmable via a 32-step I2C volume control
TPA6141A2: 0-dB or +6-dB fixed gain
Separate SGND pin reduces ground loop noise when interfacing with a non-headphone accessory
