STA311BTR.pdf
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The STA311B is positioned by ST as a single-chip solution for digital audio processing and control in multichannel applications, providing output capabilities for FFX™. In conjunction with an FFX™ power device, it supports high-quality, high-efficiency all-digital amplification. :contentReference[oaicite:80]{index=80}
ST's datasheet highlights 8 channels of 24-bit FFX™, >100 dB SNR/dynamic range, and selectable 32 kHz to 192 kHz input sampling rates, plus advanced "pop-free" operation features. :contentReference[oaicite:81]{index=81}
The STA311BTR ordering variant is commonly listed in a 56-VFQFPN (8×8) package, and interfaces can include I²C and I²S per distributor listings. :contentReference[oaicite:82]{index=82}
Supports 8 channels of 24-bit FFX™ processing (datasheet feature). :contentReference[oaicite:83]{index=83}
ST notes >100 dB SNR and dynamic range for high-fidelity multichannel audio. :contentReference[oaicite:84]{index=84}
Selectable sampling rates from 32 kHz to 192 kHz (datasheet feature). :contentReference[oaicite:85]{index=85}
Advanced "pop-free" behavior and soft volume update help improve user experience. :contentReference[oaicite:86]{index=86}
Designed to work with FFX™ power stages for efficient all-digital amplification. :contentReference[oaicite:87]{index=87}
Datasheet indicates wide digital gain/attenuation range and soft updates (feature summary). :contentReference[oaicite:88]{index=88}
ST notes support for many digital formats including multichannel and high sample rate content (see datasheet). :contentReference[oaicite:89]{index=89}
| Parameter | Value / Condition |
|---|---|
| Manufacturer | STMicroelectronics |
| Part Number | STA311BTR |
| Function | Multichannel Digital Audio Processor with FFX™ |
| Channels | 8 channels (datasheet feature) :contentReference[oaicite:90]{index=90} |
| Sampling Rates | 32 kHz to 192 kHz (datasheet feature) :contentReference[oaicite:91]{index=91} |
| Audio Performance | >100 dB SNR / dynamic range (datasheet feature) :contentReference[oaicite:92]{index=92} |
| Interfaces (listing) | I²C, I²S :contentReference[oaicite:93]{index=93} |
| Supply Voltage | 3.0 V ~ 3.6 V :contentReference[oaicite:94]{index=94} |
| Package | 56-VFQFPN (8×8) :contentReference[oaicite:95]{index=95} |
Substitute by matching channel count, supported formats, control interface, output mode (FFX/DDX class), and firmware register map.
STMicroelectronics supplies a broad audio IC portfolio including digital audio processors and all-digital amplification solutions. STA311B is positioned as a versatile multichannel digital audio processing and control device for high-efficiency audio systems. :contentReference[oaicite:97]{index=97}
Multichannel audio processing with high sampling rate support. :contentReference[oaicite:98]{index=98}
8-channel processing enables flexible speaker mapping and control.
FFX™ output capability for efficient digital power stage designs. :contentReference[oaicite:99]{index=99}
High dynamic range & pop-free features for stable user experience. :contentReference[oaicite:100]{index=100}
Verify PN, reel label, lot/date code; keep traceability records for production builds.
QFN packages require moisture control and ESD-safe handling.
Validate I²C access, boot configuration, and audio routing on pilot runs.
Check noise floor, dynamic range, pop noise, and format switching behavior (system dependent). :contentReference[oaicite:101]{index=101}
We currently provide peer-to-peer order processing. Submit an RFQ for STA311BTR, and our professional agent will contact you with competitive global pricing and guide you to complete the order once you accept the offer.
Our experienced QC team strictly verifies and tests STA311BTR. Only qualified suppliers who pass our audit can list STA311BTR on OEM STOCK GLOBAL LIMITED. We pay close attention to sourcing channels and product quality so you can purchase with confidence.
Pricing and inventory for STA311BTR fluctuate and are updated periodically (typically within 24 hours). Quotations generally remain valid for 5 days unless otherwise stated.
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We perform Pre-Shipment Inspection (PSI) on randomly selected units before shipping. If there is an issue with STA311BTR, returns/replacements are accepted when:
Steps: (1) Inform us within 90 days; (2) Obtain Return Authorization (RMA) before sending items back.
Please contact us for technical documents and support related to STMicroelectronics STA311BTR, including pin diagrams and datasheets. Our team will respond promptly.
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