TAS5086DBT - 6-Channel Digital Audio PWM Processor | Texas Instruments
N.º de pieza: TAS5086DBT ✓ ActivoTAS5086DBT Descripción general
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.
Alternativas directas para TAS5086DBT — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
TAS5086DBTG4
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TAS5086DBTR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TAS5086DBTRG4
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TAS5086DBT Valores máximos y características eléctricas
| Device Type | Six-channel digital audio PWM processor |
| Number of Output Channels | 6 channels |
| Number of Serial Audio Inputs | 4 inputs |
| Total Input Channels | 8 channels |
| Supported Sampling Rates | 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz |
| Supported Input Word Lengths | 16-bit, 20-bit, or 24-bit |
| Output Drive Configuration | Single-ended or bridge-tied loads |
| Master Clock Detection | Automatic |
| Data Sample Rate Detection | Automatic |
| Supply Voltage Range | 3 V to 3.6 V |
| Encapsulado | 38-pin TSSOP (DBT) |
| Tipo de montaje | Surface Mount |
Guía de configuración de pines de TAS5086DBT 38-pin tssop (dbt)
Configuración de pines para TAS5086DBT (encapsulado 38-pin tssop (dbt)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para TAS5086DBT.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
TAS5086DBT es adecuado para 6 aplicacións: 5.1-Channel Home-Theater Amplifier, Powered Multimedia Speakers, Digital Soundbar, Powered Subwoofer and Speaker System, Digital Audio Decoder Reference Platform, Multichannel Digital Speaker Amplifier.
5.1-Channel Home-Theater Amplifier
The TAS5086DBT fits a 5.1-channel home-theater power amplifier because it provides six PWM outputs while accepting eight channels through four serial audio inputs. Supported rates include 48 kHz, 96 kHz, and 192 kHz, and the input word length may be 16, 20, or 24 bits. The processor can therefore accept decoded surround-sound streams and coordinate front, center, surround, and subwoofer channels. Its automatic master-clock and data-sample-rate detection reduces host-configuration overhead when several source rates are encountered. The IC does not determine amplifier power or distortion; those results depend on the external switching stage, filtering, supply, and thermal design.
Recomendado
Powered Multimedia Speakers
The TAS5086DBT can be used in powered desktop or room speakers when a digital decoder must distribute multiple channels to separate amplifier boards. Four serial inputs provide eight channels of source data, while six PWM outputs support a practical six-channel speaker arrangement. Automatic clock-rate and sample-rate detection is useful when a single product accepts USB, optical, digital television, or network-audio sources operating at different rates. The compact 38-pin TSSOP package also supports space-conscious audio products. Designers must still allocate adequate PCB area for decoupling, digital routing, speaker filters, and the external power converters that translate the PWM signals into high-current speaker drive.
Recomendado
Digital Soundbar
A soundbar benefits from the TAS5086DBT because one processor can coordinate six digital speaker channels while accepting several serial audio streams. Its 16-, 20-, and 24-bit input support accommodates common decoder outputs, and automatic detection of master-clock and sample rates simplifies source management across television, streaming, and optical inputs. Single-ended or bridge-tied operation allows the implementation to match available speaker wiring and amplifier-board topology. Because the device controls PWM signaling rather than directly delivering hundreds of watts, low distortion and power capability must be established in the external MOSFET and output-filter stages using the manufacturer’s recommended reference design.
Recomendado
Powered Subwoofer and Speaker System
The TAS5086DBT is suitable for a digitally controlled subwoofer or compact speaker system requiring multiple PWM-driven outputs. It can operate in single-ended or bridge-tied modes, allowing the circuit designer to select the appropriate output topology for each transducer arrangement. Sampling-rate support from 32 kHz through 192 kHz accommodates consumer, studio, and high-resolution digital sources. In a subwoofer implementation, the host processor supplies decoded low-frequency channels while the TAS5086 handles PWM generation and output coordination. The verified source data does not state maximum output current or distortion, so the external switching stage must be validated against the official electrical limits and thermal requirements.
Recomendado
Digital Audio Decoder Reference Platform
The TAS5086DBT can serve as the PWM output stage of a digital audio decoder platform intended to evaluate channel routing, clocking, and amplifier configurations. Four serial inputs allow multiple decoded streams to be received, while automatic master-clock and data-sample-rate detection supports laboratory testing across 32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz rates. Six outputs make it possible to examine single-ended and bridge-tired arrangements on the same processor platform. The 38-pin TSSOP package is easy to incorporate into a multilayer prototype board, although exact layout guidance, supported host commands, and timing margins must be obtained from the full manufacturer documentation.
Recomendado
Multichannel Digital Speaker Amplifier
The TAS5086DBT is appropriate for a multichannel digital speaker amplifier in which one device must translate multiple decoded channels into coordinated PWM signals. Eight input channels across four serial inputs provide flexible source mapping, and the six-output capability supports speaker arrays configured with independent or bridge-tied channels. Automatic rate detection helps maintain interoperability across sources operating at common 48 kHz or higher-resolution rates. The design should reserve PCB routing and copper area for the switching power stage, maintain short PWM paths, and implement the output filtering specified by TI. The processor’s 3 V to 3.6 V supply range also requires a clean low-noise digital rail that is isolated from switching-node disturbance.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para TAS5086DBT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | TAS5086DBTG4 | TAS5086DBTR | TAS5086DBTRG4 |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 38-pin TSSOP (DBT) | 38-pin TSSOP (DBT) - same package | 38-pin TSSOP (DBT) - same package | 38-pin TSSOP (DBT) - same package |
| Function | Six-channel digital audio PWM processor | Six-channel digital audio PWM processor | Six-channel digital audio PWM processor | Six-channel digital audio PWM processor |
| Serial Audio Inputs | 4 inputs / 8 channels | 4 inputs / 8 channels | 4 inputs / 8 channels | 4 inputs / 8 channels |
| Supported Sampling Rates | 32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz | 32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz | 32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz | 32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz |
| Supported Input Data Width | 16, 20, or 24 bits | 16, 20, or 24 bits | 16, 20, or 24 bits | 16, 20, or 24 bits |
| Supply Voltage Range | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| Output Configuration | Single-ended or bridge-tied loads | Single-ended or bridge-tied loads | Single-ended or bridge-tied loads | Single-ended or bridge-tied loads |
Diferenciadores clave
- Integrated six-channel digital PWM processing (frente a TAS5086DBTR)
- Four serial inputs expand the source channel count (frente a TAS5086DBTG4)
- Broad automatic clock and sample-rate handling (frente a TAS5086DBTRG4)
Notas de diseño
Route serial-audio and clock signals over a continuous reference plane and keep the TAS5086DBT close to its decoupling capacitors. Separate switching-node copper from the 3 V to 3.6 V digital supply and audio signal traces. Apply the manufacturer’s recommended component placement and return-current paths because clock jitter, supply coupling, and ground bounce can degrade audio performance even when the nominal data format is correct.
Treat PWM outputs as high-current, high-edge-rate nets even though the TAS5086DBT is the controller rather than the speaker power stage. Keep the controller-to-driver and driver-to-MOSFET paths short, minimize loop area, and use the TI reference layout for gate-drive components. The external power stage and output filter must be designed for the intended switching frequency and load; those values were not available in the supplied search snapshot.
Do not infer pin compatibility from the package alone. Confirm every supply, ground, clock, serial-data, control, and PWM signal against the official pin table before substituting an ordering code. The ISL6217CVZ was reported as another 38-pin TSSOP device, but no verified pin-to-pin mapping was supplied, so it is not treated as a drop-in replacement for the TAS5086DBT.
Provide a quiet 3 V to 3.6 V digital supply and decouple it near the device according to the manufacturer’s recommendations. The PWM modulator may generate substantial high-frequency activity in the external switching stage, so supply layout should prevent that energy from coupling into the clock and serial-audio paths. Verify the processor’s absolute maximum ratings, host-control requirements, and power-up sequence in the complete datasheet before releasing production hardware.
Información de cumplimiento
The supplied search snapshot includes a G4 ordering designation for one alternative but does not explicitly state the target’s RoHS, REACH, AEC-Q100, halogen-free, or conflict-minerals status. Compliance values therefore remain unknown.
