STA333BWJ13TR - 2.1-Ch 40W Audio Processor | STMicroelectronics
N.º da peça: STA333BWJ13TR ✓ AtivoSTA333BWJ13TR Visão geral
A fully integrated digital audio processor is a mixed-signal audio IC that accepts digital audio information and controls an efficient power-conversion stage that drives loudspeakers. In the product hierarchy, the STA333BWJ13TR belongs to the digital audio processor and audio amplifier classes, then to integrated audio ICs and signal-processing semiconductors. Its Sound Terminal architecture reduces the external circuitry required for a conventional digital-input class-D audio output stage.
The principal features include support for 2.1-channel audio, a 40 W maximum-output configuration, digital audio conditioning and interface functions, and an exposed-pad PowerSSO-36 package. The integrated processor provides a compact implementation for applications requiring more than a mono amplifier while retaining a single amplifier package. The exposed pad supports heat transfer from the power stage to the PCB when the package is properly soldered and thermally coupled.
STMicroelectronics describes the device as a fully integrated processor using the Sound Terminal architecture rather than as a conventional discrete-output audio amplifier. Its internal digital control and power-stage organization allow the external system to focus on source selection, signal routing, and loudspeaker integration. Thermal and acoustic performance remain dependent on PCB copper, power-supply capability, speaker impedance, load configuration, and the surrounding enclosure.
Typical uses include compact stereo and 2.1-channel audio systems, soundbars, active speakers, consumer television equipment, and powered multimedia products. The 2.1-channel architecture is particularly relevant where a subwoofer channel is required but a discrete subwoofer amplifier would otherwise add another power stage and package. Its integrated format can simplify PCB partitioning while leaving enclosure, thermal, and acoustic tuning to the product designer.
For PCB implementation, use the manufacturer pin-description table and the exposed-pad land pattern exactly as shown in the datasheet. Treat the exposed pad as a thermal and electrical feature, provide adequate input and output decoupling, and keep the power-loop current path compact. Verify speaker impedance, power-supply headroom, thermal rise, and amplifier protection behavior before production release.
This page combines package and product classification information with design guidance, practical application analysis, sourcing questions, and a conservative drop-in-replacement review. The alternatives section is intentionally limited to a documented same-family part because verified pin-to-pin substitutes were not identified.
Alternativas drop-in para STA333BWJ13TR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
STA333BW13TR
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Ver ficha técnica →STA333BWJ13TR Classificações máximas e características elétricas
| Product Type | Fully integrated digital audio processor |
| Device Family | Sound Terminal |
| Channel Configuration | 2.1 channel |
| Maximum Output Power | 40 W |
| Encapsulamento | PowerSSO-36 |
| Package Pin Count | 36 pins |
| Package Width | 7.50 mm |
| Package Length | 0.295 inch |
| Exposed Pad | Present |
| Tipo de montagem | Surface mount |
Guia de Configuração de Pinos do STA333BWJ13TR 0.295 inch
Configuração de pinos para STA333BWJ13TR (pacote 0.295 inch). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.
Nenhum dado detalhado de pinagem disponível para STA333BWJ13TR.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
STA333BWJ13TR é adequado para 6 aplicaçãos: Compact 2.1-Channel Soundbar, Powered Stereo Speaker, Active Subwoofer Electronics, Consumer Television Audio, Powered Multimedia Speaker, USB and Portable Audio Dock.
Compact 2.1-Channel Soundbar
The STA333BWJ13TR fits a compact soundbar because it integrates a 2.1-channel Sound Terminal processor with a maximum 40 W output capability in one PowerSSO-36 package. This can reduce the number of separate amplifier packages needed for left, right, and subwoofer channels. The designer must still verify the required output power in every channel, the supported speaker load, and the available power-supply headroom. Thermal performance depends strongly on the exposed pad, PCB copper area, enclosure airflow, and continuous-output duty cycle. In addition, the manufacturer layout and electrical guidance should govern decoupling, output routing, grounding, and protection-device selection before the soundbar enclosure is acoustically tuned.
Recomendado
Powered Stereo Speaker
The STA333BWJ13TR can serve as the central audio-processing and power-amplification element in an active stereo speaker. Its 2.1-channel capability accommodates stereo playback while reserving a subwoofer path for systems that include an additional low-frequency channel. The 40 W maximum output figure makes it relevant to compact powered speakers, although actual usable power depends on load impedance, supply conditions, and thermal design. Place input and output decoupling according to the manufacturer layout and connect the exposed pad to the prescribed thermal-copper structure. Verify clipping, thermal protection, speaker impedance, and startup behavior across the complete product power range before production.
Recomendado
Active Subwoofer Electronics
The subwoofer channel within the STA333BWJ13TR architecture makes the device relevant to active subwoofer and compact home-theater designs. Its integrated Sound Terminal implementation can combine digital audio conditioning with amplifier control, reducing the need for a separate external output stage in a 2.1-channel product. The engineering limit is the 40 W maximum output capability: a design requiring substantially higher continuous subwoofer power should use a different amplifier class. Designers should confirm the permitted load, supply range, protection behavior, and exposed-pad thermal requirements, and should validate the completed design for bass excursion, distortion, startup, and thermal stability.
Recomendado
Consumer Television Audio
The STA333BWJ13TR is applicable to television or display products that need compact, integrated multi-channel amplification. A 2.1-channel Sound Terminal implementation can support main speakers and a subwoofer while occupying one PowerSSO-36 power package. This can assist designers in reducing board area and external component count compared with a discrete power-stage arrangement. Television chassis designs commonly have limited cooling, so the exposed pad must be coupled effectively to PCB copper and the product enclosure. Validate heat rise at the highest sustained-output condition, protect the supply network from startup and load transients, and confirm the digital source interface and speaker loads against the manufacturer's electrical specifications.
Recomendado
Powered Multimedia Speaker
The STA333BWJ13TR can support powered multimedia speakers, desktop audio products, and compact entertainment systems requiring digital-conditioned speaker drive. Integrating the audio processor and power-stage control in a 2.1-channel package simplifies system partitioning and can reduce the number of separate amplifier ICs. The 40 W maximum capability is useful for compact speaker systems, but it is not a guarantee that each channel can deliver 40 W simultaneously. Engineering validation should cover the intended load, amplifier configuration, supply voltage, channel balance, startup behavior, and sustained thermal conditions. The PCB should use the prescribed exposed-pad geometry and low-impedance supply routing so switching and output currents do not compromise audio performance.
Recomendado
USB and Portable Audio Dock
The STA333BWJ13TR can be evaluated for compact audio docks and connected entertainment products that combine a digital source with active speakers. Its integrated Sound Terminal architecture removes the need to design a separate digital-to-analog output and class-D stage when the required functions align with the device configuration. The 2.1-channel support is useful for desktop subwoofer arrangements, while the 40 W maximum output establishes the upper boundary for speaker-selection work. Because portable and desktop products may use compact enclosures and shared supplies, designers should check startup sequencing, ground noise, heat spreading, and load compatibility. Use the manufacturer pin and layout documentation to connect the digital interface, supplies, outputs, and exposed pad correctly.
Recomendado
Dados de referência de engenharia para STA333BWJ13TR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | STA333BW13TR |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | PowerSSO-36 with exposed pad | PowerSSO-36 |
| Product Type | Fully integrated digital audio processor | Fully integrated digital audio processor |
| Device Family | Sound Terminal | Sound Terminal |
| Channel Configuration | 2.1 channel | 2.1 channel |
| Maximum Output Power | 40 W | 40 W |
| Package Pin Count | 36 pins | 36 pins |
| Ordering Suffix | J13TR | 13TR |
Principais diferenciais
- Integrated 2.1-channel Sound Terminal configuration (vs STA333BW13TR)
- Single-package audio processing and power-stage integration (vs STA333BW13TR)
- Compact powered-audio architecture (vs STA333BW13TR)
Notas de projeto
Treat the PowerSSO-36 exposed pad as the primary heat-transfer path for the integrated power stage. Apply the manufacturer land pattern, preserve the recommended PCB copper area, and use the full exposed-pad connection specified for the package. Validate junction-temperature margin at the highest intended continuous-output condition with the completed enclosure. Estimated: thermal dissipation must be calculated from the actual channel configuration, supply voltage, output waveform, and load because the 40 W headline capability is not a single-channel continuous-power specification.
Use the manufacturer PCB layout as the starting point rather than constructing a generic PowerSSO footprint. Keep input and output decoupling close to their associated pins, provide a low-impedance supply path, and keep the exposed-pad via structure consistent with the recommended pattern. Route loudspeaker outputs as short, paired paths to reduce loop area. Check pin assignments in the manufacturer pin-description table before connecting the digital interface, supplies, outputs, and exposed pad.
Do not assume that a 2.1-channel, 40 W device delivers 40 W continuously to every connected speaker. Confirm the permitted load, supply range, channel configuration, thermal conditions, and protection limits in the manufacturer datasheet. Also distinguish STA333BWJ13TR from STA333BW13TR by the complete ordering suffix. The J suffix may identify a different grade or temperature option, and package similarity alone does not prove unconditional interchangeability.
Separate sensitive digital-audio and control paths from loudspeaker output and high-current supply routing. Use a continuous ground reference under the device where directed by the manufacturer layout, avoid placing return-current discontinuities beneath the exposed pad, and place bulk and local supply capacitance according to the application circuit. This arrangement helps reduce ground bounce and supply disturbance while preserving the effectiveness of the integrated digital audio processor.
Informações de conformidade
No specific compliance declaration for the exact STA333BWJ13TR ordering configuration was identified in the indexed product data. Confirm RoHS, REACH, lead-free, halogen-free, and automotive qualification status using the manufacturer product documentation before release.
