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STMicroelectronics STA016A
- Part No.:
- STA016A
- Manufacturer:
- STMicroelectronics
- Category:
- Encoders, Decoders, Converters
- Package:
- 64-LQFP
- Datasheet:
-
STA016A.pdf
- Description:
- IC DECODER AUDIO 2.5 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,441
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Product details
Overview
STA016A from STMicroelectronics is a single-chip MPEG-1/2/2.5 Layer III audio decoder with embedded CD-ROM (ISO 9660/Joliet) and ECC/EDC decoding capability, supporting sampling rates from 8 kHz to 48 kHz, bitrates up to 320 kbit/s, and I²S/SDI/GPSO interfaces - deployed in automotive CD-radio and multimedia players for MP3+CD hybrid playback.
For engineers reviewing the STA016A datasheet, STA016A pinout, STA016A application, or STA016A equivalent, key selection considerations include its integrated CD-ROM file-system browsing engine, dual-path audio processing (decoder + bypass DSP), 64-pin TQFP package with 3.3V-tolerant I/O, and I²C-configurable PLL for PCM clock generation at 176×/192× oversampling.
Technical Context
The STA016A implements a hardware-accelerated MP3 decode pipeline with synchronized sector buffering, sync detection, and descrambling logic - all managed by embedded DSP firmware that executes ISO 9660/Joliet file navigation and CDDSP command interpretation. It supports three concurrent input paths: CDDSP serial link (for Audio CD), SDI (for flash-stored MP3), and I²S (for external analog source bypass).
Its PLL subsystem provides independent clock domains: one for internal processing (driven by 14.31818 MHz crystal via XTI/XTO), another for PCM output (configurable at 176× or 192× base rate), and GPSO interface timing up to 5 Mbit/s. All register access occurs over I²C, with real-time status reporting per decoded frame (EDF) and block (EDB).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| MPEG Support | Full Layer III compliance per ISO/IEC 11172-3 (MPEG-1), 13818-3.2 (MPEG-2), and non-standard MPEG-2.5 extension - enables playback of legacy CD-DA and modern low-sample-rate MP3 files. |
| Sampling Rates | 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 kHz - covers all standard CD, broadcast, and portable audio formats without resampling overhead. |
| Bitrate Range | 8–320 kbit/s - accommodates VBR/CBR streams from voice recordings to high-fidelity stereo MP3s. |
| PCM Output Interface | I²S-compatible serial format with LRCKO/BCKO/SDO pins and programmable oversampling clock (OSCK) - directly drives external DACs without glue logic. |
| Power Supply | 2.5 V ±0.25 V (VDD/PLL_VCC) and 3.3 V ±0.3 V (VCC) domains - enables mixed-voltage system integration with 3.3V-tolerant I/O on 2.4V CMOS process. |
| GPSO Throughput | Up to 5 Mbit/s bidirectional data transfer - supports high-speed host-to-device metadata exchange (e.g., cue-sheet loading, directory traversal) without blocking main I²C bus. |
| Cue-Sheet Capacity | 100-entry limit - allows precise track indexing and gapless playback control for compilation CDs and audiobooks. |
Pinout & Package
STA016A is housed in a 64-lead Thin Quad Flat Package (TQFP64) with 0.5 mm pitch, thermally enhanced for audio SoC operation in compact consumer enclosures. Pin assignment follows JEDEC MO-153, with dedicated power/ground groups (VDD_1–VDD_6, VSS_1–VSS_9), PLL filter pins (FILT0/FILT1), and functional I/O banks grouped by interface domain.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CD_LRCK / CD_BCK / CD_SDI | CDDSP interface clock/data | Direct connection to CD servo DSP for Audio CD playback; eliminates need for external analog switch between CD and MP3 paths. |
| BS_LRCK / BS_BCK / BS_SDI | Bitstream input interface | Accepts raw MP3 bitstream from MCU or flash memory; enables standalone MP3 player architecture without CD mechanism. |
| LRCKO / BCKO / SDO | PCM output interface | Standard I²S output driving external DAC; OSCK provides oversampling clock for high-fidelity reconstruction filtering. |
| GPSO_CK / GPSO_SDO / GPSO_REQ | High-speed host interface | Enables burst-mode file-system commands (e.g., directory listing, sector read) at 5 Mbit/s - offloads I²C for time-critical operations. |
| SCL / SDA | I²C control bus | Primary configuration and status channel; supports register-level control of decoder mode, volume, tone, mute, pause, and error handling. |
| XTI / XTO | Crystal oscillator input/output | Drives internal PLL with 14.31818 MHz fundamental crystal - ensures stable 44.1 kHz audio timing across temperature and voltage variations. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded ISO 9660/Joliet decoder | Full CD-ROM file-system parsing including long filename support and parent/child directory navigation - removes host MCU filesystem stack dependency. |
| Bypass audio processing path | I²S input → digital volume/tone control → I²S output - allows use as standalone audio processor for tuner or auxiliary sources without decoding. |
| Multi-source input selector | Hardware-muxed CDDSP/SDI/I²S inputs with automatic sync detection - enables seamless switching between CD-DA, MP3, and analog line-in sources. |
| On-chip ECC/EDC engine | Dedicated hardware block performing C3 error correction and EDC validation per CD sector - reduces CPU load and improves robustness on scratched media. |
| Programmable two-band equalizer | Independent bass/treble gain control (±12 dB range) with configurable cutoff frequencies - delivers user-tailored sound without external op-amps or filters. |
Applications
| Audio CD Player | Multimedia Player |
|---|---|
|
Use Scenario: Playback of Red Book CD-DA discs with MP3-encoded bonus tracks on hybrid CDs. IC Role / Device Role / Timing Role: Dual-mode decoder: processes CD-DA sectors via CDDSP interface while simultaneously decoding MP3 files from CD-ROM partition using embedded ISO 9660 engine. Use Value: Single-chip solution eliminates separate CD DSP and MP3 ASIC, reducing BOM count and PCB area in space-constrained head units. |
Use Scenario: Portable device playing MP3 files stored on SD card or internal flash memory. IC Role / Device Role / Timing Role: Primary MP3 decode engine with SDI input, GPSO-based file browsing, and I²S output - handles bitstream parsing, Huffman decoding, and synthesis filter bank. Use Value: Integrated cue-sheet support and 100-entry index enable precise chapter navigation and gapless playback for audiobooks and podcasts. |
| Car Radio Player | CD-ROM Player |
|
Use Scenario: OEM automotive head unit supporting both broadcast FM/AM and local media playback. IC Role / Device Role / Timing Role: Audio signal processor in bypass mode: accepts tuner I²S output, applies digital volume/tone control, and routes to DAC - shares same I²S interface used for decoded MP3. Use Value: Unified audio path simplifies routing and calibration; eliminates need for analog switches or dual DACs in multi-source infotainment systems. |
Use Scenario: Industrial CD-ROM drive reading data CDs containing firmware updates or configuration files. IC Role / Device Role / Timing Role: Embedded CD-ROM decoder block executing ECC/EDC, sector translation, and ISO 9660 directory traversal - outputs raw sector data via I²C or GPSO to host MCU. Use Value: Offloads computationally intensive CD-ROM protocol layers from host processor, enabling low-cost microcontrollers to manage optical storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar MPEG Layer III audio decoding applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STA015A | Predecessor IC with identical pinout but lacks MPEG-2.5 support and GPSO interface; maximum bitrate limited to 192 kbit/s. | Suitable only for legacy CD+MP3 designs without low-sample-rate (e.g., 11.025 kHz) or high-bitrate (≥256 kbit/s) requirements. | Select when cost sensitivity outweighs future-proofing; requires firmware update to disable unsupported features. |
| STA330 | Integrated Class-D amplifier output stage (2×15 W); replaces external DAC + power amp; no CD-ROM decoding capability. | Targeted at self-contained speaker systems requiring direct speaker drive - not compatible with CD-ROM or CDDSP interfaces. | Choose for active speaker or portable boombox designs where audio output amplification is required on-chip. |
Compared with STA015A, STA016A adds MPEG-2.5 support and GPSO for faster file navigation; compared with STA330, it trades amplifier integration for full CD-ROM and multi-source decoding - making it optimal for hybrid optical/digital media players needing flexible input routing and filesystem awareness.
Availability
STA016A is available at Aetrix Electronics and suitable for automotive infotainment systems, portable multimedia players, CD-based industrial data readers, and OEM car radio platforms requiring stable component supply across extended product lifecycles.
Supply support for STA016A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.
The STA016A belongs to ST's Audio Processing SoC product line, engineered specifically for cost-sensitive, space-constrained CD/MP3 hybrid playback systems requiring integrated file-system awareness and multi-interface flexibility.
FAQ
What audio formats does the STA016A decode natively?
The STA016A decodes MPEG-1 Layer III (ISO/IEC 11172-3), MPEG-2 Layer III (ISO/IEC 13818-3.2), and the unofficial MPEG-2.5 extension - covering all standard sampling rates (8–48 kHz) and bitrates (8–320 kbit/s). It does not support AAC, WMA, or FLAC; CD-DA playback is enabled via embedded CDDSP interface and ECC/EDC hardware.
How is CD-ROM file-system navigation implemented?
File-system navigation is handled entirely by embedded DSP firmware executing ISO 9660 with Joliet extensions. The Browsing Command Interpreter (BCI) supports parent/enter/next/previous directory commands and returns file metadata (name, size, sector address) via I²C or GPSO. Host MCU sends high-level requests; STA016A performs low-level sector reads and FAT-like directory parsing.
Can the STA016A operate without an external crystal?
No - the STA016A requires a 14.31818 MHz fundamental-mode crystal connected to XTI/XTO pins to generate stable audio clocks. The internal PLL uses this reference to synthesize 176× or 192× oversampling clocks (e.g., 44.1 kHz × 192 = 8.4672 MHz) for PCM output; no internal RC oscillator is provided for audio-grade timing.
What is the function of the GPSO interface beyond data transfer?
GPSO serves as a high-speed auxiliary command channel for time-critical operations: loading cue sheets, initiating fast-forward/rewind, retrieving long directory listings, and transferring sector-aligned raw data. Its 5 Mbit/s capability prevents I²C bus saturation during intensive file-system browsing, maintaining real-time responsiveness in multi-tasking applications.
STA016A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Audio Decoder
- Applications:
- Multimedia
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP (10x10)
STA016A FAQ
1.How can I place an order for STA016A through Aetrix?
Please submit a Request for Quotation (RFQ) for STA016A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STA016A reliable?
The price and inventory of STA016A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STA016A is usually 5 days.
3.What payment methods are accepted for STA016A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STA016A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STA016A?
STA016A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STA016A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STA016A?
For technical support, including STA016A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STA016A requirements.
6.How does Aetrix verify that STA016A is sourced from the original manufacturer or authorized distributors?
All STA016A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STA016A meets industry standards.
7.What is the process for return or replacement of STA016A?
All STA016A units undergo pre-shipment inspection (PSI). If there is an issue with STA016A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STA016A part is unused and in its original packaging.
Return procedure for STA016A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STA016A Tags
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MCP2120T-I/SL
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LICAL-ENC-MS001
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