STA381BWSTR ST Audio Amplifier | 48-VQFN（7X7） | 2.1-Channel, Digital Input

Product Overview

The STA381BWSTR is a high-performance 2.1-channel digital audio amplifier system from STMicroelectronics, designed for compact and efficient audio solutions. Housed in a 48-VQFN (7x7 mm) package, it integrates a digital audio processor, PWM modulator, and power output stage, delivering up to 20W per channel into 8Ω loads. This device is ideal for applications requiring high-quality sound reproduction with minimal external components.

Detailed Technical Specifications

Key Features

• Integrated digital audio processor with 32-bit DSP
• High efficiency Class-D operation
• Low quiescent current for battery-powered applications
• Built-in protection: OCP, OTP, UVLO
• Flexible I2S/TDM input up to 192 kHz
• Programmable EQ and dynamic range control

Target Applications

• Wireless speakers and soundbars
• Home theater systems
• Automotive audio (e.g., dashboard infotainment)
• Portable audio devices
• 5G base station audio alert systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for STA381BWSTR. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
• In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

Quality Assurance & Compliance

Jasin Chip guarantees that all delivered products are 100% original factory stock with full quality assurance and traceability.

• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

STA381BWSTR 是意法半導體推出的一款高性能 2.1 聲道數位音頻放大器系統，採用緊湊的 48-VQFN（7x7 mm）封裝。它集成了數位音頻處理器、PWM 調製器和功率輸出級，在 8Ω 負載下每聲道可提供高達 20W 的功率。該器件非常適合需要高品質聲音再現且外部元件最少的應用。

詳細技術參數

核心特性

• 集成 32 位 DSP 的數位音頻處理器
• 高效率 Class-D 操作
• 低靜態電流，適合電池供電應用
• 內建保護：OCP、OTP、UVLO
• 靈活的 I2S/TDM 輸入，最高 192 kHz
• 可編程 EQ 和動態範圍控制

典型應用場景

• 無線音箱和條形音箱
• 家庭影院系統
• 汽車音頻（例如儀表板信息娛樂系統）
• 便攜式音頻設備
• 5G 基站音頻警報系統

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 STA381BWSTR 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 全天候環球客戶支援：專業團隊為您提供即時報價及技術支援，無需漫長等待。
• 現貨庫存，即日發貨：確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• Escrow 擔保交易：支援 Escrow.com 平台交易，保障買賣雙方權益，小批量訂單亦可安心在線下單。
• BOM 配單與樣板服務：提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。

品質保證與合規

Jasin Chip 承諾所有出貨產品均為原廠正貨，具備完善的品質保證及產品可追溯性。

• 100% 原廠正貨：承諾所有供應零件均為原裝現貨，品質嚴格把關，來源清晰可追溯。
• 符合 RoHS 認證：所有電子元器件均符合國際環保標準及相關安全認證。
• 原廠封裝保護：嚴格保留原廠原始包裝及封條，確保物流過程中的靜電防護 (ESD) 與物理安全。

以上產品均為原廠正貨，提供 BOM 配單及現貨庫存支援，歡迎查詢。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]