TPA2050D4 状态: ACTIVE

具有立体声 D 类放大器和 DirectPath™ 耳机放大器的 1.4W/通道 2 输入音频子系统

      
         
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数据表

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 TPA2050D4TPA2051D3 TPA2054D4 
Speaker ChannelsStereo  Mono  Stereo  
Speaker Output Power/Ch(W)1.4  2.9  2.4  
Speaker Min Load(Ohms)8  4  4  
Speaker PSRR(dB)77.7  75  77.7  
Headphone ChannelsStereo  Stereo  Stereo  
Headphone Output Power/Ch(mW)145  25  145  
Headphone Min Load(Ohms)16  16  16  
Headphone PSRR(dB)78.5  80  78.5  
No. of Inputs2 SE Stereo or 1 Diff Stereo  1 Dif-mono; 2 SE stereo  2 SE Stereo, 1 Diff Mono  
Supply(V)2.5 - 5.5  2.5 - 5.5  2.5 - 5.5  
Iq per channel(Typ)(mA)15.8  3.5  15.8  
ISD(uA)0.15  0.20  0.15  
Operating Temp Range(Celsius)-40 to 85  -40 to 85  -40 to 85  
Pin/Package25DSBGA  25DSBGA  25DSBGA  
 样片样片样片
 库存无库存库存

产品信息

特性

  • Stereo Class-D Amp:
    • 1.4 W into 8 Ω from 5.0 V (10% THD + N)
    • 1.25 W into 8 Ω; from 5.0 V (1% THD + N)
  • DirectPath™ Stereo Headphone Amplifier
    • No Output Capacitors Required
  • Gain Select for Headphone Amplifier
  • Eight Programmable Maximum Headphone Voltage Limits
  • Two Single-Ended or One Differential Stereo Input
  • 2:1 Input MUX with Mode Control
  • 32-Step Volume Control for Both Input Channels
  • Independent Shutdown for Headphone and Class-D Amplifiers
  • Short-Circuit and Thermal-Overload Protection
  • ±8 kV HBM ESD Protection on Headphone Outputs
  • I2C Interface
  • 25-Ball 2,61 mm × 2,61 mm WCSP
  • APPLICATIONS
    • Smart Phones / Cellular Phones
    • Laptop Computers
    • Portable Gaming
    • Portable Media Players

说明

The TPA2050D4 features a stereo Class-D poweramplifier along with a stereo DirectPath headphone amplifier. The TPA2050D4 has two stereo single-ended (SE) inputs that can be configured as one stereo differential input. Both input channels have a 32-step volume control and the DirectPath headphone amplifier has a 4-level gain control for coarse volume adjustment. All amplifiers have output short-circuit and thermal-overload protection.

The Class-D amplifiers deliver 1.25 W into 8 Ω at 1% THD from a 5.0 V supply, and 700 mW from 3.6 V. The DirectPath headphone amplifier features an output voltage limiter to reduce the maximum output power to one of seven possible limits. The voltage limiter is programmed through the I2C interface.

DirectPath eliminates the need for external DC- blocking output capacitors to the headphones. The built-in charge pump creates a negative supply voltage for the headphone amplifier, allowing a 0-V DC bias at the output.

The DirectPath headphone amplifier gains are 0 dB (default), -6 dB, -12 dB, and -20 dB, selected through the I2C interface. This allows the headphone volume to be different from the loudspeaker volume if both are used simultaneously.

The TPA2050D4 has a 2:1 input MUX for audio source selection. The MUX has mode control which directs the input-to-output signal path. Mode and gain controls operate from a 1.8 V compatible I2C interface.

The voltage supply range for both the Class-D amplifiers and the headphone charge pump is 2.5 V to 5.5 V. The Class-D amplifiers use a combined 7 mA and the headphone amplifier uses 10 mA of typical quiescent current. Total supply current reduces to less than 2µA.

The TPA2050D4YZK is available in a 25-ball 2.61 mm × 2.61 mm WCSP package.

    

定价/封装/CAD 设计工具/样片

价格(美元)封装样片
器件状态温度 (oC)价格(美元) | Quantity封装 | 引脚封装数量 | 封装载体样片
TPA2050D4YZKRACTIVE-40 to 852.30 | 1kuDSBGA (YZK) | 25 3000 | LARGE T&R采购样片
TPA2050D4YZKTACTIVE-40 to 852.55 | 1kuDSBGA (YZK) | 25 250 | SMALL T&R请与TI分销商或销售办事处联系申请样片

建议零售价格仅用于预算,以美元为单位,并且价格是浮动的。 若要查询有关批量价格、本地货币价格或交付报价的信息,请与当地德州仪器 (TI) 销售办事处或授权经销商联系。

库存

  TI 库存状态 已报告的分销商库存
TPA2050D4YZKR截至 9:38 PM GMT, 2009年 7月 2日截至 9:38 PM GMT, 2009年 7月 2日
 交货周期地区公司库存采购
 4 Weeks无报告
查看经销商
   
TPA2050D4YZKT截至 9:38 PM GMT, 2009年 7月 2日截至 9:38 PM GMT, 2009年 7月 2日
 交货周期地区公司库存采购
 4 Weeks无报告
查看经销商
   

查看中国经销商

**目前尚无法提供交货时间信息。 但是,由于我们的信息每天都会更新,如有疑问,请马上与我们联系。 有关附加信息,请与首选的 TI 授权分销商 联系。

质量与无铅数据

 产品目录DPPM / MTBF / FIT 率
器件环保计划* 铅/焊球涂层MSL 等级/回流焊峰详细信息详细信息
TPA2050D4YZKR 符合 RoHS Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIM查看查看
TPA2050D4YZKT 符合 RoHS Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIM查看查看

* 计划的环保分级:无铅 (RoHS)、无铅(RoHS 豁免)或绿色环保(RoHS 和无 Sb/Br)- 请单击上表中产品目录明细的“查看”链接,以获得最新供货信息和附加产品目录明细。

如果此时没有在线提供您所请求的信息,则请联系 我们的产品信息中心, 以了解关于此信息可用性的信息。

技术文档

TPA2050D4 最新技术文档 Help

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工具与软件

名称型号 公司 工具/软件类型
音频的快速搜索选择工具AUDIO_SELECTION_TOOLTexas Instruments免费评估工具
TPA2050D4 评估模块 (EVM)TPA2050D4EVMTexas Instruments开发电路板/EVM

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