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TPA2031D1

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2.5-W, mono, analog input Class-D audio amplifier

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Data sheet

TPA2031D1

ACTIVE
Data sheet Order now

Product details

Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Catalog Load (min) (Ω) 4 Output power (W) 2.5 SNR (dB) 97 THD + N at 1 kHz (%) 0.18 Iq (typ) (mA) 3.4 Control interface GPIO Analog supply (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 PSRR (dB) 75 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Catalog Load (min) (Ω) 4 Output power (W) 2.5 SNR (dB) 97 THD + N at 1 kHz (%) 0.18 Iq (typ) (mA) 3.4 Control interface GPIO Analog supply (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 PSRR (dB) 75 Operating temperature range (°C) -40 to 85
DSBGA (YZF) 9 3.0625 mm² 1.75 x 1.75
  • Pin-to-Pin Compatibility with TPA2010D1
  • 32 ms Start-up Time Eliminates CODEC Click/Pop noise
  • Maximum Battery Life and Minimum Heat
    • Efficiency With an 8-Ω Speaker:
      • 88% at 400 mW
    • 2.8-mA Quiescent Current
    • 0.5-µA Shutdown Current
  • Only Three External Components
    • Optimized PWM Output Stage Eliminates LC Output Filter
    • Improved PSRR (-75 dB) and Wide Supply Voltage (2.5 V to 5.5 V) Eliminates Need for a Voltage Regulator
    • Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor
    • Improved CMRR Eliminates Two Input Coupling Capacitors
  • Wafer Chip Scale Packaging (WCSP)
    • NanoFree™ (YZF)
  • APPLICATIONS
    • Ideal for Wireless or Cellular Handsets and PDAs
  • Pin-to-Pin Compatibility with TPA2010D1
  • 32 ms Start-up Time Eliminates CODEC Click/Pop noise
  • Maximum Battery Life and Minimum Heat
    • Efficiency With an 8-Ω Speaker:
      • 88% at 400 mW
    • 2.8-mA Quiescent Current
    • 0.5-µA Shutdown Current
  • Only Three External Components
    • Optimized PWM Output Stage Eliminates LC Output Filter
    • Improved PSRR (-75 dB) and Wide Supply Voltage (2.5 V to 5.5 V) Eliminates Need for a Voltage Regulator
    • Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor
    • Improved CMRR Eliminates Two Input Coupling Capacitors
  • Wafer Chip Scale Packaging (WCSP)
    • NanoFree™ (YZF)
  • APPLICATIONS
    • Ideal for Wireless or Cellular Handsets and PDAs

The TPA2031D1 is a 2.5-W high efficiency filter-free class-D audio power amplifier in a 1,45 mm × 1,45 mm wafer chip scale package (WCSP) that requires only three external components.

Features like 88% efficiency, -75-dB PSRR, improved RF-rectification immunity, and 8 mm2 total PCB area make the TPA2031D1 class-D amp ideal for cellular handsets. 32 ms start-up time allows the TPA2031D1 to share the same GPIO enable/shutdown control as the CODEC without passing through the CODEC turn-on pop.

In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the TPA2031D1. The TPA2031D1 allows independent gain while summing signals from separate sources, and has a low 36 µV noise floor, A-weighted.

The TPA2031D1 is a 2.5-W high efficiency filter-free class-D audio power amplifier in a 1,45 mm × 1,45 mm wafer chip scale package (WCSP) that requires only three external components.

Features like 88% efficiency, -75-dB PSRR, improved RF-rectification immunity, and 8 mm2 total PCB area make the TPA2031D1 class-D amp ideal for cellular handsets. 32 ms start-up time allows the TPA2031D1 to share the same GPIO enable/shutdown control as the CODEC without passing through the CODEC turn-on pop.

In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the TPA2031D1. The TPA2031D1 allows independent gain while summing signals from separate sources, and has a low 36 µV noise floor, A-weighted.
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Type Title Date
* Data sheet 2.5-W Mono Filter-Free Class-D Audio Power Amplifier datasheet 28 May 2008
User guide TPA2031D1EVM User's Guide 28 May 2008

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPA2031D1EVM — TPA2031D1 Evaluation Module (EVM)

The TPA2031D1 audio power amplifier evaluation module is a complete, low-power single-channel audio power amplifier. It consists of the TI TPA2031D1 2.5-W low-voltage Class-D audio power amplifier IC in a very small NanoFree™ WCSP package, along with a small number of other parts mounted on a (...)

User guide: PDF
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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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