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TPA2051D3

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具有 25mW 耳机驱动器的 2.9W 单声道、模拟输入 D 类音频放大器

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数据表

TPA2051D3

正在供货
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产品详情

Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Control interface I2C Output power (W) 2.9 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.5 THD + N at 1 kHz (%) 0.04 Load (min) (Ω) 8 Analog supply voltage (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Control interface I2C Output power (W) 2.9 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.5 THD + N at 1 kHz (%) 0.04 Load (min) (Ω) 8 Analog supply voltage (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFF) 25 4.84 mm² (0 mm × 0 mm)
  • Mono Class-D Amp: 730 mW into 8 from 3.6 V Supply (1% THD)
  • Class-D Bypass Switches
  • DirectPath Stereo Headphone Amplifier
    • No Output Capacitors Required
  • SpeakerGuard Automatic Gain Control (AGC)
  • One Differential Mono and Two Stereo Single-Ended Inputs
  • 3:1 Input MUX with Mode Control
  • 32-Step Volume Control for Both Input Channels
  • Independent Volume Controls for All Inputs
  • Independent Shutdown for Headphone and Class-D Amplifiers
  • I2C Interface
  • Short-Circuit and Thermal-Overload Protection
  • Operates from 2.5 V to 5.5 V
  • 25-Ball 2,16 mm × 2,11 mm, 0,4 mm pitch WCSP
  • APPLICATIONS
    • Smart Phones / Cellular Phones
    • Portable Media Players
    • Portable Gaming
    • Multimedia Platforms
  • Mono Class-D Amp: 730 mW into 8 from 3.6 V Supply (1% THD)
  • Class-D Bypass Switches
  • DirectPath Stereo Headphone Amplifier
    • No Output Capacitors Required
  • SpeakerGuard Automatic Gain Control (AGC)
  • One Differential Mono and Two Stereo Single-Ended Inputs
  • 3:1 Input MUX with Mode Control
  • 32-Step Volume Control for Both Input Channels
  • Independent Volume Controls for All Inputs
  • Independent Shutdown for Headphone and Class-D Amplifiers
  • I2C Interface
  • Short-Circuit and Thermal-Overload Protection
  • Operates from 2.5 V to 5.5 V
  • 25-Ball 2,16 mm × 2,11 mm, 0,4 mm pitch WCSP
  • APPLICATIONS
    • Smart Phones / Cellular Phones
    • Portable Media Players
    • Portable Gaming
    • Multimedia Platforms

The TPA2051D3 is an audio subsystem with a mono Class-D power amplifier, a stereo DirectPath headphone amplifier, and bypass switches. The DirectPath headphone amplifier eliminates the need for external dc-blocking output capacitors. 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 drives 25 mW into 16 speakers from a 4.2 V supply.

The subsystem includes three inputs: A differential mono input and two stereo single-ended (SE) inputs. The stereo inputs are also configurable as differential mono inputs. Each input channel has an independent volume control. Seven operating modes provide input-to-output combinations and shutdown control. Operating mode and volume levels are controlled over a 1.8 V compatible I2C interface.

The TPA2051D3 uses SpeakerGuardTM technology to prevent output clipping distortion and excessive power to the speaker and headphones.

The Class-D amplifier includes a bypass mode. This allows the baseband IC (BB) to directly drive the 8 speaker. This is useful for dual-mode speaker phones in voice—only mode.

The Class-D amplifier uses 4.9 mA and the DirectPath amplifier uses 4.1 mA of typical quiescent current. Total supply current reduces to less than 1 µA in shutdown.

The TPA2051D3 is available in a 25-bump 2,16 mm × 2,11 mm, 0,4 mm pitch WCSP with less than 0.8 mm height.

The TPA2051D3 is an audio subsystem with a mono Class-D power amplifier, a stereo DirectPath headphone amplifier, and bypass switches. The DirectPath headphone amplifier eliminates the need for external dc-blocking output capacitors. 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 drives 25 mW into 16 speakers from a 4.2 V supply.

The subsystem includes three inputs: A differential mono input and two stereo single-ended (SE) inputs. The stereo inputs are also configurable as differential mono inputs. Each input channel has an independent volume control. Seven operating modes provide input-to-output combinations and shutdown control. Operating mode and volume levels are controlled over a 1.8 V compatible I2C interface.

The TPA2051D3 uses SpeakerGuardTM technology to prevent output clipping distortion and excessive power to the speaker and headphones.

The Class-D amplifier includes a bypass mode. This allows the baseband IC (BB) to directly drive the 8 speaker. This is useful for dual-mode speaker phones in voice—only mode.

The Class-D amplifier uses 4.9 mA and the DirectPath amplifier uses 4.1 mA of typical quiescent current. Total supply current reduces to less than 1 µA in shutdown.

The TPA2051D3 is available in a 25-bump 2,16 mm × 2,11 mm, 0,4 mm pitch WCSP with less than 0.8 mm height.
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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 2.9 W/Channel Mono Class-D Audio Subsystem with DirectPath™ Headphone Amplifier 数据表 (Rev. A) 2009-10-21
应用手册 TPA2051D3 I²C Pull-Up Resistor Selection 2011-10-16

设计与开发

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仿真模型

TPA2051D3 PSpice Transient Model (Rev. A)

SLOM191A.ZIP (36 KB) - PSpice 模型
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
DSBGA (YFF) 25 Ultra Librarian
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