A21SP16J ST 音频放大器 | 9-覆晶（1.6X1.6） | 1.6W输出, 低功耗

Product Overview

The A21SP16J from STMicroelectronics is a high-efficiency, low-power audio amplifier designed for portable and space-constrained applications. Housed in a compact 9-覆晶 (1.6x1.6mm) package, it delivers up to 1.6W of output power into an 8Ω load with low total harmonic distortion (THD). The device features a wide supply voltage range (2.5V to 5.5V) and integrates advanced click-and-pop suppression circuitry, making it ideal for battery-powered devices.

Detailed Technical Specifications

Key Features

• High efficiency: up to 85%
• Low quiescent current for extended battery life
• Integrated pop-and-click suppression
• Short-circuit and thermal protection
• Ultra-small footprint: 1.6x1.6mm

Target Applications

• Smartphones and tablets
• Portable speakers and headphones
• IoT devices and wearables
• 5G base station audio alerts
• Automotive dashboard chimes

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for A21SP16J. 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

A21SP16J 是意法半導體推出的一款高效率、低功耗音頻放大器，專為便攜式和空間受限的應用設計。採用緊湊的 9-覆晶（1.6x1.6mm）封裝，在 8Ω 負載下可提供高達 1.6W 的輸出功率，且總諧波失真（THD）極低。該器件具有寬電源電壓範圍（2.5V 至 5.5V），並集成了先進的咔嗒聲和爆音抑制電路，非常適合電池供電設備。

詳細技術參數

核心特性

• 高效率：高達 85%
• 低靜態電流，延長電池壽命
• 集成咔嗒聲和爆音抑制
• 短路和熱保護
• 超小尺寸：1.6x1.6mm

典型應用場景

• 智能手機和平板電腦
• 便攜式揚聲器和耳機
• 物聯網設備和可穿戴設備
• 5G 基站音頻提示
• 汽車儀表板提示音

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 A21SP16J 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]