홈 오디오, 햅틱, 피에조 오디오 증폭기 범용 오디오 증폭기
홈
오디오, 햅틱, 피에조
오디오 증폭기
범용 오디오 증폭기

TPA2054D4A

활성

145mW 헤드폰 증폭기, 3:1 멀티플렉서 및 전원 켜짐 리셋을 지원하는 1.4W, 스테레오, 아날로그 입력 클래스-D 오디오 증폭기

지금 주문하기
데이터 시트

TPA2054D4A

활성
데이터 시트 지금 주문하기

제품 상세 정보

Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Control interface I2C Output power (W) 2.4 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.5 THD + N at 1 kHz (%) 0.18 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) Stereo Control interface I2C Output power (W) 2.4 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.5 THD + N at 1 kHz (%) 0.18 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 (YZK) 25 7.5625 mm² (— mm × — mm)
  • Stereo Class-D Amp:
    • 1.4 W into 8 from 5.0 V (10% THD + N)
    • 1.25 W into 8 from 5.0 V (1% THD + N)
  • DirectPath™ Stereo Headphone Amplifier
    • No Output Capacitors Required
  • Independent Gain Select for Headphone Amplifier
  • Eight Programmable Maximum Headphone Voltage Limits
  • Two Single-Ended or One Differential Stereo Input
  • 3:1 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

DirectPath is a trademark of Texas Instruments.
I2C is a trademark of NXP Semiconductors.
  • Stereo Class-D Amp:
    • 1.4 W into 8 from 5.0 V (10% THD + N)
    • 1.25 W into 8 from 5.0 V (1% THD + N)
  • DirectPath™ Stereo Headphone Amplifier
    • No Output Capacitors Required
  • Independent Gain Select for Headphone Amplifier
  • Eight Programmable Maximum Headphone Voltage Limits
  • Two Single-Ended or One Differential Stereo Input
  • 3:1 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

DirectPath is a trademark of Texas Instruments.
I2C is a trademark of NXP Semiconductors.

The TPA2054D4A features a stereo Class-D power amplifier along with a stereo DirectPath™ headphone amplifier. The TPA2054D4A has a mono differential input and 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  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 +6 dB (default), 0 dB, –6 dB, and –14 dB, selected through the I2C interface. This allows the headphone volume to be different from the loudspeaker volume if both are used simultaneously.

The TPA2054D4A has a 3:1 input MUX for audio source selection. Mode and gain controls operate from a 1.7 V to 3.6 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 in shutdown reduces to less than 4 µA. Undervoltage lockout keeps supply current to less than 4 µA when the supply voltage is less than 2.1 V.

The TPA2054D4AYZK is available in a 25-ball 2,61 mm × 2,61 mm WCSP package.

The TPA2054D4A features a stereo Class-D power amplifier along with a stereo DirectPath™ headphone amplifier. The TPA2054D4A has a mono differential input and 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  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 +6 dB (default), 0 dB, –6 dB, and –14 dB, selected through the I2C interface. This allows the headphone volume to be different from the loudspeaker volume if both are used simultaneously.

The TPA2054D4A has a 3:1 input MUX for audio source selection. Mode and gain controls operate from a 1.7 V to 3.6 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 in shutdown reduces to less than 4 µA. Undervoltage lockout keeps supply current to less than 4 µA when the supply voltage is less than 2.1 V.

The TPA2054D4AYZK is available in a 25-ball 2,61 mm × 2,61 mm WCSP package.
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기술 자료

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* 데이터 시트 1.4 W/CH Stereo Class-D Audio Subsystem with DirectPath™ Headphone Amp datasheet 2010. 5. 26

설계 및 개발

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시뮬레이션 모델

TPA2054D4A PSpice Model (Rev. A)

SLOM171A.ZIP (32 KB) - PSpice 모델
지원되는 제품 및 하드웨어
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
DSBGA (YZK) 25 Ultra Librarian
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