STMicroelectronics Introduces TS4999 Amplifier with 3-D Audio Capabilities
March 5, 2009 // Published as a news service by IHS
STMicroelectronics introduced the TS4999, two-channel, stereo audio amplifier integrated circuit (IC), which features three-dimensional (3-D) audio effects.
Wide separation is acknowledged by audiophiles to deliver a better listening experience and home audio equipment can achieve this separation by ensuring a large distance between speakers, according to STMicroelectronics.
To overcome the physical restrictions of portable form factors, the TS4999’s 3-D audio is touted as creating the effect of wide channel separation.
In addition, selectable 3-D modes allow the audio image to be focused behind, above or below the listener, which can also improve performance and comfort for headphone users, according to STMicroelectronics.
Using class D operation to achieve up to 90% efficiency, the TS4999 benefits from reduced heat dissipation, which allows smaller portable products with high power density, experts said.
Combined with a minimum supply voltage of 2.4 volts, the TS4999 also allows battery-powered products to operate longer before recharging, said STMicroelectronics. A 10 nA power-saving mode also minimizes battery drain when the audio features are not being used.
The TS4999 delivers up to 2.8 watts (W) per channel into 4-ohm speaker loads and achieves distortion of 1%. Its rejection ratio also prevents power supply noise from entering the audio signal, according to STMicroelectronics.
The TS4999 is delivered in an 18-bump, flip-chip, lead-free package.
Source: STMicroelectronics.