STA323W STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STA323W is a digital audio system circuit from STMicroelectronics integrating a 3-channel Class-D audio amplifier with advanced digital signal processing and S/PDIF input in a 36-pin PowerSO package. Designed for compact home audio and multimedia systems, available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 36
- Lifecycle
- OBSOLETE
- Datasheet
- STA323W Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STA323W?
- 3-channel Class-D switching audio amplifier
- Integrated digital audio processing with bass and treble EQ
- S/PDIF digital audio input for optical or coaxial sources
- 36-pin PowerSO package with integrated heat-slug for thermal management
- High efficiency Class-D output reducing heatsink requirements
- Suitable for 2.1 and center-channel consumer audio designs
What is STA323W used for?
The STA323W is designed for compact home theater systems, soundbars, and multimedia speakers requiring integrated digital audio processing and Class-D amplification in a single IC. Its S/PDIF input enables direct connection to Blu-ray players, set-top boxes, and TVs without an external digital audio receiver chip. The 36-pin PowerSO package with an exposed heat slug simplifies thermal design in space-constrained consumer audio enclosures.
What are the specifications of STA323W?
| YTEOL | 0 |
| Consumer IC Type | CONSUMER CIRCUIT |
| JESD-30 Code | R-PDSO-G36 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP36,.56 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 245 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 3V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the STA323W datasheet?
STA323W Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STA323W?
Compatible alternatives and drop-in replacements for STA323W:
Frequently Asked Questions
How many audio output channels does the STA323W support and what amplifier topology does it use?
The STA323W integrates 3 channels of Class-D switching amplification, enabling a 2.1 stereo plus subwoofer or left, right, and center channel configuration from a single IC. Class-D operation typically achieves 85% to 90% efficiency, reducing heat dissipation compared to linear Class-AB amplifiers and allowing smaller heatsinks in consumer soundbar designs.
What digital audio input formats does the STA323W accept and how does this simplify system integration?
The STA323W accepts S/PDIF digital audio input, allowing direct connection from optical or coaxial digital outputs of Blu-ray players, AV receivers, and set-top boxes at standard sample rates such as 44.1 kHz and 48 kHz. This eliminates the need for a separate digital audio receiver IC, reducing BOM cost and simplifying signal chain PCB routing in consumer electronics designs.
What thermal advantages does the 36-pin PowerSO package of the STA323W provide over a standard SSOP package?
The 36-pin PowerSO package of the STA323W includes an exposed bottom heat slug that conducts heat directly to the PCB copper pour, achieving a junction-to-board thermal resistance significantly lower than a standard SSOP-36 without a slug. This allows the 3-channel Class-D amplifier to operate at full output power in a compact enclosure without an external heatsink, subject to adequate PCB copper area meeting the 245°C peak reflow specification.
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Why Buy from FindMyChip
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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