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Product Overview
The PCM2904DB is a high-performance stereo audio codec from Texas Instruments, featuring a USB interface, 16-bit stereo ADC and DAC, and integrated S/PDIF digital audio I/O. It is designed for applications requiring high-quality audio conversion and direct USB connectivity, eliminating the need for external controllers. The device operates from a single 5V supply and is housed in a compact 28-SSOP package.
Detailed Technical Specifications
| Parameter |
Value |
| Resolution |
16-bit |
| Sampling Rate |
8 kHz to 48 kHz |
| ADC SNR |
89 dB (A-weighted) |
| DAC SNR |
96 dB (A-weighted) |
| USB Interface |
USB 1.1 Full Speed |
| Digital Audio I/O |
S/PDIF (coaxial/optical) |
| Supply Voltage |
5V ±10% |
| Package |
28-SSOP |
| Operating Temperature |
-25°C to +85°C |
Key Features
- USB-compliant audio class 1.0 with full-speed operation
- 16-bit stereo ADC and DAC with high dynamic range
- Integrated S/PDIF transmitter and receiver
- Single 5V supply with on-chip voltage regulator
- Supports suspend and resume power management
- No external crystal required (internal PLL)
- 28-pin SSOP package for space-constrained designs
Target Applications
- USB speakers and soundbars
- Headphone amplifiers with USB input
- Digital audio interfaces for PCs and laptops
- Gaming headsets and microphones
- VoIP phones and conference systems
- Automotive infotainment systems (e.g., dashboard audio modules)
- 5G base station monitoring audio paths
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
PCM2904DB. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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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.
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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.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
PCM2904DB 是德州儀器 (TI) 推出的一款高性能立體聲音頻編解碼器,具有 USB 接口、16 位立體聲 ADC 和 DAC,以及集成的 S/PDIF 數字音頻輸入/輸出。該器件專為需要高質量音頻轉換和直接 USB 連接的應用而設計,無需外部控制器。它由單一 5V 電源供電,採用緊湊的 28-SSOP 封裝。
詳細技術參數
| 參數 |
數值 |
| 分辨率 |
16 位 |
| 採樣率 |
8 kHz 至 48 kHz |
| ADC 信噪比 |
89 dB(A 加權) |
| DAC 信噪比 |
96 dB(A 加權) |
| USB 接口 |
USB 1.1 全速 |
| 數字音頻 I/O |
S/PDIF(同軸/光纖) |
| 電源電壓 |
5V ±10% |
| 封裝 |
28-SSOP |
| 工作溫度 |
-25°C 至 +85°C |
核心特性
- 符合 USB 音頻類 1.0 規範,全速運行
- 16 位立體聲 ADC 和 DAC,具有高動態範圍
- 集成 S/PDIF 發送器和接收器
- 單一 5V 電源供電,內置穩壓器
- 支持掛起和恢復電源管理
- 無需外部晶振(內部 PLL)
- 28 引腳 SSOP 封裝,適合空間受限設計
典型應用場景
- USB 音箱和條形音箱
- 帶 USB 輸入的耳機放大器
- PC 和筆記本電腦的數字音頻接口
- 遊戲耳機和麥克風
- VoIP 電話和會議系統
- 汽車信息娛樂系統(例如儀表板音頻模塊)
- 5G 基站監控音頻路徑
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 PCM2904DB 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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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。
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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。
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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。
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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。
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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。
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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。
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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。
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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。
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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]