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PCM3794RHBT TI Audio Codec | 32-VQFN (5x5) | 2-Ch ADC/DAC, 8kHz-96kHz
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Product Overview
The PCM3794RHBT is a low-power, stereo audio codec from Texas Instruments, designed for portable and embedded applications. It integrates a 2-channel ADC and DAC with sampling rates from 8 kHz to 96 kHz, supporting 16/20/24-bit audio data. The device operates from a 1.8V digital supply and 2.7V to 3.6V analog supply, with a typical power consumption of 12 mW during playback. Housed in a compact 32-VQFN (5x5 mm) package, it is ideal for space-constrained designs.
Detailed Technical Specifications
| Parameter | Value |
|---|---|
| Supply Voltage (Analog) | 2.7V – 3.6V |
| Supply Voltage (Digital) | 1.65V – 1.95V |
| Sampling Rate | 8 kHz – 96 kHz |
| Audio Data Word Length | 16, 20, 24 bits |
| ADC SNR (A-weighted) | 90 dB (typical) |
| DAC SNR (A-weighted) | 95 dB (typical) |
| THD+N (ADC) | -85 dB (typical) |
| THD+N (DAC) | -88 dB (typical) |
| Power Consumption (Playback) | 12 mW (typical) |
| Package | 32-VQFN (5x5 mm) |
| Operating Temperature | -40°C to +85°C |
Key Features
- Low power consumption: 12 mW typical during playback
- High audio performance: 95 dB DAC SNR, -88 dB THD+N
- Flexible sampling rates: 8 kHz to 96 kHz
- I2C and SPI control interface
- Integrated PLL for clock generation
- Programmable gain amplifier (PGA) for microphone input
- Headphone driver with 16 mW output power
- Small footprint: 5x5 mm QFN package
Target Applications
- Portable audio devices: MP3 players, voice recorders
- Smartphones and tablets
- Wireless headsets and earphones
- IoT voice-enabled devices: smart speakers, home assistants
- Automotive infotainment: dashboard audio processing
- Industrial voice communication systems
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for PCM3794RHBT. 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
PCM3794RHBT 是德州儀器（TI）推出的一款低功耗立體聲音頻編解碼器，專為便攜式和嵌入式應用設計。它集成了2通道ADC和DAC，支持8 kHz至96 kHz的採樣率，以及16/20/24位音頻數據。器件在1.8V數字電源和2.7V至3.6V模擬電源下工作，播放時典型功耗僅12 mW。採用緊湊的32-VQFN（5x5 mm）封裝，適合空間受限的設計。
詳細技術參數
| 參數 | 數值 |
|---|---|
| 模擬電源電壓 | 2.7V – 3.6V |
| 數字電源電壓 | 1.65V – 1.95V |
| 採樣率 | 8 kHz – 96 kHz |
| 音頻數據字長 | 16, 20, 24 位 |
| ADC 信噪比（A計權） | 90 dB（典型） |
| DAC 信噪比（A計權） | 95 dB（典型） |
| ADC 總諧波失真+噪聲 | -85 dB（典型） |
| DAC 總諧波失真+噪聲 | -88 dB（典型） |
| 播放功耗 | 12 mW（典型） |
| 封裝 | 32-VQFN（5x5 mm） |
| 工作溫度 | -40°C 至 +85°C |
核心特性
- 低功耗：播放時典型功耗12 mW
- 高音頻性能：DAC SNR 95 dB，THD+N -88 dB
- 靈活採樣率：8 kHz 至 96 kHz
- I2C 和 SPI 控制接口
- 集成 PLL 用於時鐘生成
- 可編程增益放大器（PGA）用於麥克風輸入
- 耳機驅動器，輸出功率16 mW
- 小尺寸：5x5 mm QFN 封裝
典型應用場景
- 便攜式音頻設備：MP3播放器、錄音筆
- 智能手機和平板電腦
- 無線耳機和耳塞
- 物聯網語音設備：智能音箱、家庭助手
- 汽車信息娛樂系統：儀表板音頻處理
- 工業語音通信系統
環球供應鏈與批發合作夥伴方案
在 Jasin Chip，我們為 PCM3794RHBT 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。
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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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