- 制造厂商：TI
- 产品类别：音频
- 技术类目：音频放大器 - 扬声器放大器
- 功能描述：具有 4.75V LDO、使能端高电平有效的 2W、立体声 AB 类扬声器和耳机放大器
- 点击这里打开及下载TPA6047A4的技术文档资料
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The TPA6047A4 is a stereo audio power amplifier and DirectPath headphone amplifier in a thermally enhanced, space-saving, 32-pin QFN package. The speaker amplifier is capable of driving 2.1 W per channel continuously into 4-Ω loads at 5 V. The headphone amplifier achieves a minimum of 100 mW at 10% THD+N from a 5-V supply. A built-in internal 4-step gain control for the speaker amplifier and a fixed -1.5 V/V gain for the headphone amplifier minimizes external components needed.
Independent shutdown control and dedicated inputs for the speaker and headphone allow the TPA6047A4 to simultaneously drive both headphones and internal speakers. Differential inputs to the speaker amplifiers offer superior power-supply and common-mode noise rejection.
- Microsoft Windows Vista Compliant
- Fully Differential Architecture and High PSRR Provide Excellent RF Rectification Immunity
- 2.1-W, 1% THD+N Into 4-Ω Speakers and 100-mW, 10% THD+N Into 16-Ω Headphones From 5-V Supply
- DirectPath Headphone Amplifier Eliminates Output Capacitors(1)
- Internal 4-Step Speaker Gain Control: 10, 12, 15.6, 21.6 dB and Fixed -1.5-V/V Headphone
- 4.75-V Low Dropout Regulator for CODEC
- Independent Shutdown Controls for Speaker, Headphone Amplifier, and Low Dropout Regulator (LDO)
- Output Short-Circuit and Thermal Protection
- APPLICATIONS
- Notebook Computers
- Portable DVD
- Audio input type
- Analog Input
- Architecture
- Class-AB
- Speaker channels (Max)
- Stereo
- Power stage supply (Max) (V)
- 5.5
- Power stage supply (Min) (V)
- 4.5
- Load (Min) (ohms)
- 4
- Output power (W)
- 2
- SNR (dB)
- 99
- THD + N @ 1 kHz (%)
- 0.06
- Iq (Typ) (mA)
- 5
- Control interface
- Hardware
- Closed/open loop
- Closed
- Analog supply (Min) (V)
- 4.5
- Analog supply (Max) (V)
- 5.5
- PSRR (dB)
- 65
- Operating temperature range (C)
- -40 to 85
TPA6047A4的完整型号有：TPA6047A4RHBR，以下是这些产品的关键参数及官网采购报价：
TPA6047A4RHBR，工作温度：-40 to 85，封装：VQFN (RHB)-32，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TPA6047A4RHBR的批量USD价格：1.371（1000+）
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