STA310 - 6+2-Channel Audio Decoder | STMicroelectronics
MPN: STA310 ✓ Active| Qty | Unit Price | Extended |
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STA310 Overview
An audio decoder is an interface IC that converts compressed or encoded digital audio streams into PCM data for downstream digital-to-analog converters, amplifiers, receivers, or speakers. Within the signal chain, it sits between a source interface and the audio output stage, handling format recognition, channel organization, and decoding while leaving analog amplification and loudspeaker drive to downstream components.
The STA310's key verified features include integrated multistandard decoding and support for both serial and parallel input paths. The I2S and S/PDIF options suit modern digital audio systems, while the parallel interface can support legacy source architectures. Its 6+2-channel capability is relevant to multichannel home entertainment, although exact channel-routing behavior must be confirmed from the manufacturer datasheet and application implementation.
The architecture combines encoded digital audio input, format-specific decoding, and decoded audio output in one device. This integration can reduce the external decoder count in a set-top box, DVD player, HDTV, or surround-sound receiver. System designers must still account for clocking, supported sample rates, output format, electrical levels, signal integrity, and software or control requirements that are not specified in the supplied web excerpts.
Typical applications include HDTV audio processing, DVD and disc-player output stages, AV receivers, digital audio players, set-top boxes, and other home-entertainment equipment. The STA310 is especially relevant where a product must accept encoded digital audio from several source types and produce decoded multichannel PCM audio for a downstream codec or amplifier.
When laying out an STA310 design, preserve the exact pin assignments and reference interface timing shown in the manufacturer datasheet. Keep digital audio, clock, and power routing controlled, provide the required bypass and interface components, and validate timing margins across every supported input format. This page consolidates distributor identification, verified format support, sourcing data, and engineering guidance.
Drop-in alternatives for STA310 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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| Product Type | Multistandard audio decoder IC |
| Decoded Channel Capability | 6+2 channels |
| DVD Audio Format | Meridian Lossless Packing (MLP), up to 6 channels |
| Uncompressed Audio Support | LPCM with 1–8 channels |
| Encoded Serial Input | I2S or S/PDIF |
| Encoded Parallel Input | Parallel interface |
| Integration Level | Fully integrated audio decoder |
| Package | 80-pin TQFP (14x14) |
| Mounting Type | Surface mount |
| Primary Application | HDTV |
| Additional Application | Audio players |
| Additional Application | Receivers |
| Additional Application | Set-top boxes |
STA310 80-pin tqfp (14x14) Pin Configuration Guide
Pin configuration for STA310 (80-pin tqfp (14x14) package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for STA310.
Refer to the datasheet for full pin configuration.
Typical Applications
STA310 is suitable for 6 applications: HDTV Audio Processing, DVD and Disc-Player Decoder, AV Receiver Multichannel Audio, Digital Audio Player, Set-Top-Box Audio Path, Home-Theater Decoder Platform.
HDTV Audio Processing
The STA310 fits an HDTV audio path that must accept encoded digital streams and decode multichannel content before conversion to analog audio. Its verified 6+2-channel architecture, MLP support for up to 6 channels, and LPCM support for 1–8 channels cover several common home-entertainment formats. I2S and S/PDIF inputs allow source-interface selection, while the parallel option supports compatible legacy architectures. The design must still verify voltage, clocks, output format, sample rates, and channel mapping from the full datasheet.
Recommended
DVD and Disc-Player Decoder
The STA310 is relevant to DVD and disc-player designs requiring integrated decoding of MLP and LPCM content. The verified feature set includes Meridian Lossless Packing with as many as 6 channels and uncompressed LPCM with 1–8 channels, allowing one decoder to address several digital-audio cases. Its 80-pin TQFP package is intended for surface-mount home-entertainment equipment. Engineers should confirm exact output routing, supported sample rates, clock requirements, and analog architecture in the manufacturer documentation.
Recommended
AV Receiver Multichannel Audio
The STA310 can serve as the decoding element in an AV receiver or surround-sound receiver when encoded source audio must become multichannel PCM data for downstream converters and amplifiers. Its verified 6+2-channel positioning aligns with multichannel entertainment use cases, and its I2S or S/PDIF input flexibility simplifies source adaptation. Deployment requires exact pin assignment, clocking, output routing, and control integration to be checked against the complete datasheet.
Recommended
Digital Audio Player
The STA310 suits a digital audio player that receives encoded data through I2S, S/PDIF, or a parallel interface and must support multistandard decoding. LPCM support spans 1–8 channels, while MLP support extends to 6 channels, allowing the decoder to handle lossless and uncompressed program material. The design team should validate the required decoded-output interface, supported sample rates, channel mapping, and power rails before committing the device to a player architecture.
Recommended
Set-Top-Box Audio Path
The STA310 fits a set-top box that must decode several digital-audio formats close to its receiver or output stage. The verified I2S, S/PDIF, and parallel inputs support different source arrangements, while 6+2-channel decoding serves multichannel program material. For a production design, verify supply voltage, clock stability, decoded output timing, control signals, thermal performance, and all 80 package connections before releasing the PCB layout.
Recommended
Home-Theater Decoder Platform
The STA310 provides a single-device decoding block for home-theater equipment that handles both lossless DVD Audio MLP and multichannel LPCM. Its stated 6+2-channel capability and support for 1–8 LPCM channels make it relevant to flexible channel configurations, while three input types offer interface-selection flexibility. Actual suitability depends on channel-layout rules and output mapping that are not included in the verified excerpts, so prototype validation and datasheet review are mandatory.
Recommended
Recommended Products Summary
Engineering reference data for STA310 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Brand | STMicroelectronics |
| Package | 80-pin TQFP (14x14) |
| Product Type | Fully integrated multistandard audio decoder |
| Channel Capability | 6+2 channels |
| MLP Support | Up to 6 channels |
| LPCM Support | 1–8 channels |
| Serial Inputs | I2S or S/PDIF |
| Parallel Input | Supported |
| Primary Applications | HDTV, players, receivers, and set-top boxes |
Key Differentiators
- Verified multistandard decoding in one IC (vs Generic audio interface IC)
- 6+2-channel decoder positioning (vs Two-channel-only decoder class)
- Three encoded-input paths (vs Single-interface decoder)
Design Notes
Treat the STA310 as a mixed-signal digital system device: route I2S, S/PDIF, clock, control, and parallel data paths with continuous reference planes and short return paths. The supplied data does not provide edge-rate limits, impedance targets, or a recommended land pattern, so use the complete manufacturer package drawing and layout guidance. Verify every one of the 80 TQFP connections before fabrication because the verified excerpts do not provide the complete pin map.
Validate clock and data timing at the actual board, connector, and enclosure level rather than relying only on simulation. The STA310 can receive encoded audio through I2S, S/PDIF, or a parallel interface, and the correct timing envelope, voltage levels, and supported sample rates are not included in the supplied excerpts. Use datasheet timing tables, controlled-impedance routing where applicable, and worst-case channel configurations during hardware bring-up.
Do not assume that an IC with the same nominal channel count is a replacement for the STA310. A valid substitute must match the 80-pin TQFP land pattern, pin functions, electrical limits, supported codecs, clocks, control interface, and boot behavior. The supplied cross-reference search found no substantiated same-package equivalent, so use an authorized STMicroelectronics source or obtain manufacturer confirmation for any second-source proposal.
Follow the manufacturer's required bypass, supply sequencing, and grounding recommendations once the complete electrical tables are available. Do not infer voltage rails or capacitor values from the package or interface descriptions because the verified data does not supply them. Confirm noise-sensitive clock behavior on prototypes, especially when the decoded output drives high-gain analog stages that can amplify supply or ground disturbances.
Compliance Information
The supplied search results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for the STA310.
