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STMicroelectronics STA339BWS13TR
- Part No.:
- STA339BWS13TR
- Manufacturer:
- STMicroelectronics
- Category:
- Audio Special Purpose
- Package:
- 36-PowerBFSOP (0.295", 7.50mm Width)
- Datasheet:
-
STA339BWS13TR.pdf
- Description:
- IC FULLY INTEG PROC POWERSSO-36
- Quantity:
- Payment:
- Shipping:
Inventory:1,465
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Product details
Overview
STA339BWS13TR from STMicroelectronics is a 2.1-channel, 40 W high-efficiency digital audio system-on-chip (Sound Terminal®) integrating ternary/binary PWM amplification, FFX™ processing, dual-band DRC, and LFE-specific bass management. It delivers 2 × 20 W into 8 Ω (ternary mode) or 2 × 9 W + 1 × 20 W (binary 2.1 mode) at 18 V, supports 32–192 kHz I²S input, and features 100-dB SNR, thermal/short-circuit protection, and pin/SW compatibility with STA333BW/STA339BW/STA559BW series.
For engineers reviewing the STA339BWS13TR datasheet, STA339BWS13TR pinout, STA339BWS13TR application, or STA339BWS13TR equivalent, key selection considerations include output configuration flexibility (ternary stereo + PWM line-out vs. binary 2.1), programmable biquad EQ (up to 8 per channel), dual independent DRC engines, LFE processing for subwoofer enhancement, and AM interference suppression modes for automotive infotainment systems.
Technical Context
The STA339BWS13TR implements ST's FFX™ (Full Flexibility eXtended) modulation architecture with scalable modulation index and selectable noise-shaping topologies (high/low bandwidth). Its internal 96-kHz processing engine handles I²S input mapping, channel mixing, and real-time DSP including dedicated LFE path with bass-boosting crossover filters.
Control is via I²C with configurable slave address; register-based configuration enables soft volume updates, individual channel mute/gain, EQ coefficient bank switching (3 banks), and dynamic control of two limiter engines-configurable as B2DRC (dual-band anticlipper) or independent compressors-with extended attack/release thresholds and RMS filter coefficients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | 2.1-channel (L/R/LFE) or 2-channel + PWM line-out; supports ternary (2×20 W @ 8 Ω) or binary (2×9 W @ 4 Ω + 1×20 W @ 8 Ω) PWM modes |
| Supply Voltage | 4.5 V to 21.5 V wide-range operation enables direct battery connection in automotive and portable AV systems |
| SNR / Dynamic Range | 100 dB - ensures high-fidelity audio reproduction with minimal quantization noise in consumer and automotive sound terminals |
| Input Sample Rate | 32–192 kHz I²S - supports CD, DVD-Audio, SACD, and high-res streaming formats without external sample-rate conversion |
| Digital Gain Range | +48 dB to –80 dB in 0.5-dB steps - enables precise loudness matching across sources and speaker sensitivities |
| Processing Core | 96-kHz internal sample rate with up to 8 user-programmable biquads/channel and 3 EQ coefficient banks - allows real-time parametric EQ and fast preset recall |
| Protection Features | Thermal overload detection, short-circuit protection, automatic invalid-input mute, and clock-loss recovery - ensures robust operation in unattended embedded audio systems |
Pinout & Package
STA339BWS13TR is housed in PowerSSO-36 with exposed pad down (EPD), optimized for thermal dissipation in compact audio amplifier modules. The 36-pin package integrates power, ground, analog output, digital interface, and control pins in a single-sided layout compatible with automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDP, VDDA, VDDD | Power supply rails | VDDP: high-current PWM driver supply (4.5–21.5 V); VDDA/VDDD: analog/digital core supplies (3.3 V) |
| OUTL, OUTR, OUTLFE | PWM output terminals | Direct connection to external LC filters and speakers; support ternary or binary PWM modulation per configured mode |
| I²S_SDIN, I²S_SCLK, I²S_LRCK | Digital audio interface | Supports MSB-first/LSB-first I²S with programmable delay on SCLK enable for timing alignment |
| I²C_SCL, I²C_SDA | Configuration bus | I²C slave interface (100/400 kHz) with selectable device address for multi-device system integration |
| MUTE, EAPD | System control inputs | Hardware-mute and external amplifier power-down signals for coordinated power sequencing and safety shutdown |
| FAULT, THERM | Fault reporting outputs | Open-drain status flags indicating thermal warning, overcurrent, or protection activation for host MCU monitoring |
Key Features
| Feature | Design Value |
|---|---|
| FFX™ Modulation Architecture | Enables >90% efficiency and 100-dB SNR by dynamically adapting pulse density and compensating for nonlinearity in Class-D output stage |
| Dual Independent DRC Engines | Configurable as B2DRC (dual-band anticlipper) or separate limiters/compressors - preserves transient detail while preventing clipping across frequency bands |
| LFE-Specific Processing Path | Dedicated bass management with 15 preset crossovers and programmable boost profiles - optimizes subwoofer output without affecting main channel fidelity |
| AM Interference Suppression | Selectable switching frequencies and noise-suppression modes - mitigates audible AM radio interference in automotive cabin environments |
| EQ Coefficient Bank Switching | Three RAM banks store full biquad sets; fast I²C recall enables real-time acoustic tuning (e.g., room correction → nighttime mode) |
Applications
| Automotive Infotainment | Home Theater Soundbar |
|---|---|
Use Scenario: Integrated audio subsystem in OEM head units supporting Bluetooth streaming, navigation voice prompts, and rear-seat entertainment. IC Role / Device Role / Timing Role: System-level digital audio processor and Class-D amplifier controller handling I²S input routing, DRC for varying source levels, and LFE extraction for subwoofer output. Use Value: Eliminates need for external DSP and discrete amplifiers; AM suppression prevents radio interference during FM reception; thermal protection ensures reliability under hood temperature cycling. | Use Scenario: Compact 2.1-channel soundbar with HDMI ARC input, virtual surround processing, and night-mode listening. IC Role / Device Role / Timing Role: Central audio terminal managing I²S data from TV SoC, applying preset EQ/DRC, driving left/right full-range drivers and active subwoofer via binary PWM. Use Value: 100-dB SNR enables quiet-room playback fidelity; soft volume update avoids zipper noise during remote control; 5 preset anticlip modes adapt to content dynamics (movie vs. dialogue). |
| Smart Speaker Base Unit | Portable Bluetooth Speaker Dock |
Use Scenario: Voice-assistant-enabled smart speaker with 360° audio, far-field mic array, and Wi-Fi/Bluetooth connectivity. IC Role / Device Role / Timing Role: Audio sink IC receiving decoded PCM over I²S, applying tone control (bass/treble), DRC for consistent loudness, and driving dual midrange + passive radiator. Use Value: Individual channel volume/DSP bypass allows voice prompt prioritization; automatic invalid-input mute prevents pop noise during Bluetooth reconnection. | Use Scenario: Battery-powered docking station for smartphones/tablets delivering enhanced audio via 2.1 analog line-out and built-in amplification. IC Role / Device Role / Timing Role: Digital audio hub accepting I²S from docked device, performing gain staging, bass enhancement, and generating PWM for integrated woofers/tweeters. Use Value: Wide 4.5–21.5 V supply range accommodates Li-ion battery (3.7 V nominal, up to 4.2 V) with boost converter; low-quiescent-power sleep modes extend runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2.1-channel digital audio terminal applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STA339BW | Same die, no tape-and-reel packaging; lacks TR suffix and EPD thermal pad optimization | Designed for manual prototyping or low-volume evaluation; not qualified for automated SMT production | Select STA339BWS13TR for volume manufacturing requiring thermal reliability and reel-fed placement |
| STA559BWS | Higher 2×30 W + 1×50 W output capability; adds 32-bit processing and enhanced AM suppression algorithms | Targeted at premium automotive head units and powered soundbars requiring greater bass authority and advanced RF immunity | Choose STA559BWS when >20 W LFE output or stricter CISPR 25 compliance is required |
Compared with STA339BW, STA339BWS13TR offers production-grade thermal performance and logistics readiness; versus STA559BWS, it provides cost-optimized 2.1-channel amplification with identical register map and software compatibility-ideal for mid-tier consumer and automotive audio where 20 W LFE suffices.
Availability
STA339BWS13TR is available at Aetrix Electronics and suitable for automotive infotainment systems, home theater soundbars, smart speaker base units, and portable Bluetooth speaker docks requiring stable component supply, long-term manufacturability, and AEC-Q100-aligned reliability.
Supply support for STA339BWS13TR 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 microcontrollers, power management ICs, sensors, and analog/audio solutions for automotive, industrial, and consumer markets.
The STA339BWS13TR belongs to ST's Sound Terminal® family-engineered specifically for highly integrated, high-efficiency digital audio systems that replace discrete DAC + amplifier + DSP combinations in space-constrained, thermally demanding applications.
FAQ
What are the supported output configurations for STA339BWS13TR?
The STA339BWS13TR supports three hardware-configurable output modes: (1) 2-channel ternary PWM + PWM line-out; (2) 2-channel ternary PWM + ternary stereo line-out; and (3) 2.1-channel binary PWM (L/R/LFE). Configuration is set via FFX power output mode bits (register 0x00, bits [2:0]) and requires corresponding external LC filter design per mode.
How does the dual-band DRC (B2DRC) function differ from standard limiter operation?
B2DRC splits the audio spectrum using programmable crossover points and applies independent compression to low- and high-frequency bands-preserving transient clarity in highs while controlling bass distortion. Standard limiter mode applies uniform gain reduction across full bandwidth. B2DRC is enabled via register 0x36 bit B2DRC_EN and requires configuring both limiter engines with distinct attack/release thresholds.
Can STA339BWS13TR operate with a 3.3 V-only supply?
No. STA339BWS13TR requires separate supplies: VDDP (4.5–21.5 V for PWM output stage) and VDDA/VDDD (3.3 V ±10% for analog/digital core). Using only 3.3 V on VDDP will prevent PWM output functionality and may damage the device. External DC-DC conversion is mandatory for battery-powered designs.
What thermal management provisions are implemented in the PowerSSO-36 EPD package?
The PowerSSO-36 EPD package features an exposed copper pad on the underside, soldered directly to a large PCB thermal plane. Internal thermal sensing triggers FAULT pin assertion and automatic output shutdown at 150 °C junction temperature. Recommended layout includes ≥4 thermal vias (0.3 mm diameter) under the EPD pad connected to inner-layer ground planes for ≤3.5 °C/W junction-to-board thermal resistance.
STA339BWS13TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- Sound Terminal™
- Package/Case:
- 36-PowerBFSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Fully Integrated Processor
- Applications:
- Pre-Amplifier
- Number of Channels:
- 2
- Interface:
- I2C, I2S
- Voltage - Supply:
- 4.5V ~ 21.5V
- Operating Temperature:
- -20°C ~ 70°C (TA)
- Specifications:
- Full Flexible Amplification
- Mounting Type:
- Surface Mount
- Grade:
- -
STA339BWS13TR FAQ
1.How can I place an order for STA339BWS13TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STA339BWS13TR 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 STA339BWS13TR reliable?
The price and inventory of STA339BWS13TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STA339BWS13TR is usually 5 days.
3.What payment methods are accepted for STA339BWS13TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STA339BWS13TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STA339BWS13TR?
STA339BWS13TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STA339BWS13TR 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 STA339BWS13TR?
For technical support, including STA339BWS13TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STA339BWS13TR requirements.
6.How does Aetrix verify that STA339BWS13TR is sourced from the original manufacturer or authorized distributors?
All STA339BWS13TR 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 STA339BWS13TR meets industry standards.
7.What is the process for return or replacement of STA339BWS13TR?
All STA339BWS13TR units undergo pre-shipment inspection (PSI). If there is an issue with STA339BWS13TR, 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 STA339BWS13TR part is unused and in its original packaging.
Return procedure for STA339BWS13TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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