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Product Overview
The LM4549BVHX/NOPB is a high-performance audio codec from Texas Instruments, designed for multi-channel audio applications. It integrates two analog-to-digital converters (ADCs) and two digital-to-analog converters (DACs) with 16-bit resolution, supporting sample rates up to 48 kHz. The device operates from a single 5V supply and is housed in a compact 48-lead LQFP package (7x7 mm). It features a programmable gain amplifier (PGA) and microphone bias, making it ideal for consumer and professional audio systems.
Detailed Technical Specifications
| Parameter |
Value |
| Resolution |
16-bit |
| Sample Rate |
8 kHz to 48 kHz |
| Number of ADCs |
2 |
| Number of DACs |
2 |
| Supply Voltage |
5V ±10% |
| Package |
48-LQFP (7x7 mm) |
| Operating Temperature |
-40°C to +85°C |
| SNR (ADC/DAC) |
90 dB / 95 dB |
| THD+N (ADC/DAC) |
-80 dB / -85 dB |
| Interface |
I2S, Left-Justified, Right-Justified |
| Microphone Bias |
2.5V |
| PGA Gain Range |
0 dB to 22.5 dB |
Key Features
- Dual 16-bit ADC and DAC with 48 kHz sampling
- Low power consumption: 50 mW typical
- Programmable gain amplifier (PGA) for microphone input
- On-chip microphone bias voltage generator
- Flexible serial audio interface (I2S, Left-Justified, Right-Justified)
- Power-down mode for power saving
- Compact 48-LQFP package for space-constrained designs
Target Applications
- 5G base station audio processing
- Automotive dashboard infotainment systems
- Digital video recorders (DVRs)
- IP cameras with audio
- Portable audio devices
- Voice communication systems
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LM4549BVHX/NOPB. 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
LM4549BVHX/NOPB 是德州儀器(TI)推出的一款高性能音頻編解碼器,專為多通道音頻應用設計。它集成了兩個模數轉換器(ADC)和兩個數模轉換器(DAC),分辨率為16位,支持最高48 kHz的採樣率。該器件採用單一5V電源供電,封裝在緊湊的48引腳LQFP(7x7 mm)中。它還具有可編程增益放大器(PGA)和麥克風偏置功能,非常適合消費類和專業音頻系統。
詳細技術參數
| 參數 |
數值 |
| 分辨率 |
16位 |
| 採樣率 |
8 kHz 至 48 kHz |
| ADC 數量 |
2 |
| DAC 數量 |
2 |
| 電源電壓 |
5V ±10% |
| 封裝 |
48-LQFP (7x7 mm) |
| 工作溫度 |
-40°C 至 +85°C |
| 信噪比 (ADC/DAC) |
90 dB / 95 dB |
| 總諧波失真+噪聲 (ADC/DAC) |
-80 dB / -85 dB |
| 接口 |
I2S, 左對齊, 右對齊 |
| 麥克風偏置 |
2.5V |
| PGA 增益範圍 |
0 dB 至 22.5 dB |
核心特性
- 雙通道16位ADC和DAC,支持48 kHz採樣
- 低功耗:典型值50 mW
- 麥克風輸入可編程增益放大器(PGA)
- 片上麥克風偏置電壓發生器
- 靈活的串行音頻接口(I2S、左對齊、右對齊)
- 省電模式
- 緊湊的48-LQFP封裝,適合空間受限的設計
典型應用場景
- 5G基站音頻處理
- 汽車儀表板信息娛樂系統
- 數字視頻錄像機(DVR)
- 帶音頻的IP攝像機
- 便攜式音頻設備
- 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 LM4549BVHX/NOPB 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。
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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
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WhatsApp: +852 5209 9691 | Email: [email protected]