Class-D Amplifier Features Dynamic Range Compression and Speaker Protection

(Product News, 18 Jul 2008)

Texas Instruments Inc.'s (TI) TPA2016D2 stereo Class-D amplifier provides a 1.7W per channel output drive capability across an 8¦¸ load and improves overall volume versus traditional Class-D products. The new amplifier incorporates programmable dynamic range compression (DRC) that automatically adjusts the audio to the desired loudness range while protecting the speaker and preventing clipping and distortion.

In addition, the chip's flexibility and intuitive support tools ease design and speed time to market for manufacturers of wireless handsets, personal navigation devices, notebook PCs and portable DVD players.

The TPA2016D2 incorporates DRC to automatically boost soft volumes. Conversely, DRC enables designers to compress the dynamic range of the audio to match the dynamic range of the speaker in order to reduce disturbingly loud volumes that cause clipping and distortion. The DRC functionality also protects the speaker from damage at high power levels to avoid field failures. In addition, the DRC capability in the TPA2016D2 frees up to 20 percent of MIPS in the digital signal processor (DSP) for other functions.

The DRC can be programmed via digital I2C control and provides designers with the flexibility to specify the design parameters that optimize their system's audio performance. Users can select gains from -28dB to +30dB as well as program attack/hold/release times, compression ratios and noise threshold values.

Click here for more information on Texas Instruments' TPA2016D2 Class-D amplifier

Click here for more information on Texas Instruments


RELATED ARTICLES

TI Intensifies Focus on Analog with New Strategic Business Unit

Mobile Industry Endorsement for Symbian Foundation Grows

ZigBee Processor Simplifies Low-power Wireless Product Design

Data Converters Feature 6dB SNR

Texas Instruments and Xinwei Accelerate Broadband Voice and Data Coverage to Millions of Chinese Households

MetaSwitch and Texas Instruments Collaborate on Enhanced Voice Quality Monitoring

Texas Instruments Brightens Notebook LCD Displays with New White LED Drivers

Mobile Leaders to Unify the Symbian Software Platform

Texas Instruments Launches Latest Current Feedback Amplifier for Differential Signals

Texas Instruments' Digital-input Serializer Incorporates Eight Channels

Technology Integration and Business Acquisitions Likely to Define GPS IC Markets

Texas Instruments' Power Supply Controller Achieves 97% Efficiency

Texas Instruments' Organic LED Driver Enhances Image Quality of 2.5in Portable Displays