TAS5086DBT
TAS5086DBT - 6-Channel Digital Audio PWM Processor | Texas Instruments
The Texas Instruments TAS5086DBT is a six-channel digital pulse-width modulation audio processor with four serial audio inputs representing eight input channels, support for 16-, 20-, or 24-bit data, and operation from 3 V to 3.6 V. The device is supplied in a 38-pin TSSOP (DBT) package and is designed to drive six speaker channels in single-ended or bridge-tied configurations.
A digital audio PWM processor is an integrated circuit that accepts digital audio samples and converts them into high-speed PWM outputs suitable for controlling switching power stages. Within the broader hierarchy, the TAS5086DBT is a digital signal controller, a specialized DSP, and a system-integration IC for multichannel Class-D audio amplification. Its integrated control functions reduce the amount of external digital processing required in home-theater, multimedia, and powered-speaker systems.
Key capabilities include automatic detection of master-clock and data-sample rates, four serial audio inputs carrying eight channels, and support for 32-, 44.1-, 48-, 88.2-, 96-, 176.4-, and 192-kHz sampling rates. Input word lengths of 16, 20, or 24 bits allow compatibility with common audio processors and MPEG decoders. Six independently controlled PWM outputs support either six single-ended loads or three bridge-tied loads when fewer amplifier channels are required.
The TAS5086DBT architecture integrates digital audio input handling, PWM modulation, speaker-output control, and communication with a host processor. This integration provides a practical bridge between a digital audio decoder and external power stages. Exact clock requirements, PWM output timing, electrical limits, and thermal characteristics must be confirmed in the manufacturer datasheet before finalizing a high-power design.
Typical uses include 5.1-channel home-cinema amplification, active multimedia speakers, digital soundbars, powered subwoofers, and compact consumer audio systems. Its multiple serial inputs and six-channel output capability suit systems in which one device receives several decoded audio streams and coordinates multiple speaker drive channels. The IC is intended to work with appropriately designed external switching power stages and speaker drivers.
A key design consideration is that digital audio correctness depends on proper clocking, data alignment, and channel mapping. The PCB should provide a short, controlled return path for switching-node energy, while the analog and digital grounds should follow the manufacturer’s recommended layout and decoupling arrangements. Verify the external MOSFET, gate-driver, filter, and thermal solution against the datasheet before production.
This product page consolidates verified manufacturer facts, distributor sourcing information, ordering-code differences, comparison data, and practical design cautions. It is intended to accelerate component selection while explicitly identifying electrical details that remain unavailable in the supplied source snapshot.
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