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TPA6140A2

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具 I2C 音量控制的 32-mW 立體聲道、類比輸入耳機放大器

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TPA6140A2

現行
產品規格表 立即訂購

產品詳細資料

Output power (W) 0.025 Analog supply (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 105 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control Yes Shutdown current (ISD) (µA) 1 Architecture Class-G Iq per channel (typ) (mA) 0.6
Output power (W) 0.025 Analog supply (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 105 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control Yes Shutdown current (ISD) (µA) 1 Architecture Class-G Iq per channel (typ) (mA) 0.6
DSBGA (YFF) 16 3.24 mm² 1.8 x 1.8
  • TI Class-G Technology Significantly Prolongs Battery Life and Music Playback Time
    • 0.6 mA / Ch Quiescent Current
    • 50% to 80% Lower Quiescent Current than Ground-Referenced Class-AB Headphone Amplifiers
  • DirectPath™ Technology Eliminates Large Output DC-Blocking Capacitors
    • Outputs Biased at 0 V
    • Improves Low Frequency Audio Fidelity
  • I2C Volume Control
    • –59 dB to +4 dB Gain
  • Active Click and Pop Suppression
  • Fully Differential Inputs Reduce System Noise
    • Also Configurable as Single-Ended Inputs
  • SGND Pin Eliminates Ground Loop Noise
  • Wide Power Supply Range: 2.5 V to 5.5 V
  • 100 dB Power Supply Noise Rejection
  • Short-Circuit Current Limiter
  • Thermal-Overload Protection
  • Software Compatible with TPA6130A2
  • 0,4 mm Pitch, 1,6 mm × 1,6 mm WCSP Package
  • APPLICATIONS
    • Cellular Phones / Music Phones
    • Portable Media / MP3 Players
    • Portable CD / DVD Players
  • TI Class-G Technology Significantly Prolongs Battery Life and Music Playback Time
    • 0.6 mA / Ch Quiescent Current
    • 50% to 80% Lower Quiescent Current than Ground-Referenced Class-AB Headphone Amplifiers
  • DirectPath™ Technology Eliminates Large Output DC-Blocking Capacitors
    • Outputs Biased at 0 V
    • Improves Low Frequency Audio Fidelity
  • I2C Volume Control
    • –59 dB to +4 dB Gain
  • Active Click and Pop Suppression
  • Fully Differential Inputs Reduce System Noise
    • Also Configurable as Single-Ended Inputs
  • SGND Pin Eliminates Ground Loop Noise
  • Wide Power Supply Range: 2.5 V to 5.5 V
  • 100 dB Power Supply Noise Rejection
  • Short-Circuit Current Limiter
  • Thermal-Overload Protection
  • Software Compatible with TPA6130A2
  • 0,4 mm Pitch, 1,6 mm × 1,6 mm WCSP Package
  • APPLICATIONS
    • Cellular Phones / Music Phones
    • Portable Media / MP3 Players
    • Portable CD / DVD Players

The TPA6140A2 (also known as TPA6140) is a Class-G DirectPath stereo headphone amplifier with built-in I2C volume control. Class-G technology maximizes battery life by adjusting the voltage supplies of the headphone amplifier based on the audio signal level. At low level audio signals, the internal supply voltage is reduced to minimize power dissipation. DirectPath™ technology eliminates external DC-blocking capacitors.

The device operates from a 2.5 V to 5.5 V supply voltage. Class-G operation keeps total supply current below 5.0 mA while delivering 500 µW per channel into 32 . Shutdown mode reduces the supply current to less than 3 µA and is activated through the I2C interface.

The TPA6140A2 (TPA6140) I2C register map is compatible to the TPA6130A2, simplifying software development.

The amplifier outputs have short-circuit and thermal-overload protection along with ±8 kV HBM ESD protection, simplifying end equipment compliance to the IEC 61000-4-2 ESD standard.

The TPA6140A2 (TPA6140) is available in a 0,4 mm pitch, 16-bump 1,6 mm × 1,6 mm WCSP (YFF) package.

The TPA6140A2 (also known as TPA6140) is a Class-G DirectPath stereo headphone amplifier with built-in I2C volume control. Class-G technology maximizes battery life by adjusting the voltage supplies of the headphone amplifier based on the audio signal level. At low level audio signals, the internal supply voltage is reduced to minimize power dissipation. DirectPath™ technology eliminates external DC-blocking capacitors.

The device operates from a 2.5 V to 5.5 V supply voltage. Class-G operation keeps total supply current below 5.0 mA while delivering 500 µW per channel into 32 . Shutdown mode reduces the supply current to less than 3 µA and is activated through the I2C interface.

The TPA6140A2 (TPA6140) I2C register map is compatible to the TPA6130A2, simplifying software development.

The amplifier outputs have short-circuit and thermal-overload protection along with ±8 kV HBM ESD protection, simplifying end equipment compliance to the IEC 61000-4-2 ESD standard.

The TPA6140A2 (TPA6140) is available in a 0,4 mm pitch, 16-bump 1,6 mm × 1,6 mm WCSP (YFF) package.
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類型 標題 日期
* Data sheet Class-G DirectPath Stereo Headphone Amplifier With I2C Volume Control datasheet (Rev. A) 2009年 10月 13日
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019年 8月 26日
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 2019年 6月 27日
User guide TPA6140A2EVM - User Guide 2009年 3月 16日

設計與開發

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開發板

TPA6140A2YFFEVM — TPA6140A2 評估模組 (EVM)

The TPA6140A2YFFEVM allows the engineer to evaluate the TPA6140A2, a stereo Class-G DirectPath™ (capacitor-free) headphone amplifier in a WCSP package. The TPA6140A2 has extremely low power consumption that enables much longer battery life in portable applications.

使用指南: PDF
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驅動程式或資料庫

TPA6130A2SW-LINUX — 適用於 TPA6130A2 的 Linux 驅動程式

The Linux driver supports the TPA61x0A2 family of Stereo Headphone Amplifiers. The Linux driver supports communication through the I2C bus and interfaces with the Linux DAPM (Dynamic Audio Power Management for Portable Devices) class.
Linux Mainline Status

Available in Linux Main line: Yes
Available (...)

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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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