E-STA32813TR STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
E-STA32813TR is a digital audio power amplifier IC by STMicroelectronics, integrating a class-D amplifier core with I2S/SPI digital input and multiple output channels. Key specs: multi-channel output, digital audio interface, compact small-outline package for consumer and professional audio. Available in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 37
- Lifecycle
- ACTIVE
- Datasheet
- E-STA32813TR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated class-D digital audio power amplifier with I2S digital input eliminating external DAC for simplified audio system design
- Multi-channel output capability enabling stereo or surround sound configurations from a single compact small-outline IC
- STMicroelectronics STA-family audio platform with advanced digital signal processing for low THD and high SNR audio performance
Applications
The E-STA32813TR is suited for consumer audio products such as soundbars, smart speakers, and home theater amplifiers where a fully digital signal path from I2S source to speaker output is required in a compact PCB footprint. It also fits automotive infotainment head units and professional audio equipment needing multi-channel amplification with minimal external components and low total harmonic distortion.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What amplifier topology does E-STA32813TR use and how does it affect power efficiency?
The E-STA32813TR uses a class-D switching amplifier topology, which typically achieves power efficiency above 85% compared to 50% or less for class-AB amplifiers. This high efficiency means less heat dissipation, allowing the device to deliver significant audio output power without requiring large heatsinks, making it ideal for compact consumer audio products.
What digital audio interface does E-STA32813TR support for connecting to host processors?
E-STA32813TR supports an I2S digital audio interface — a standard 3-wire serial bus used for transmitting PCM audio at sample rates from 8 kHz up to 192 kHz. This allows direct connection to DSPs, SoCs, and Bluetooth audio receivers without an intermediate analog stage, preserving signal quality and reducing the BOM by eliminating a separate DAC.
In which end-product applications is E-STA32813TR from STMicroelectronics most commonly used?
E-STA32813TR is most commonly used in soundbars, all-in-one smart speakers, and multi-room audio systems where 2 or more audio channels must be amplified from a digital source within a thermally constrained enclosure. Its class-D output with multi-channel capability and small-outline package simplifies integration into slim consumer electronic products with tight internal space.
How does E-STA32813TR compare to a discrete transistor class-AB amplifier stage for a 2-channel audio design?
E-STA32813TR replaces an entire discrete class-AB output stage — typically requiring 4 to 8 transistors, biasing resistors, and filter components — with a single IC. The integrated class-D architecture delivers higher efficiency (above 85%) and lower quiescent current, reducing the power supply size and PCB area by approximately 60% while achieving lower electromagnetic emission with integrated EMI filtering.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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