Product details

Audio input type Analog Input Architecture Class-D Speaker channels (Max) Mono Power stage supply (Max) (V) 5.5 Power stage supply (Min) (V) 2.5 Load (Min) (ohms) 4 Output power (W) 3.2 SNR (dB) 95 THD + N @ 1 kHz (%) 0.12 Iq (Typ) (mA) 1.8 Control interface GPIO Closed/open loop Closed Analog supply (Min) (V) 2.5 Analog supply (Max) (V) 5.5 PSRR (dB) 86 Operating temperature range (C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (Max) Mono Power stage supply (Max) (V) 5.5 Power stage supply (Min) (V) 2.5 Load (Min) (ohms) 4 Output power (W) 3.2 SNR (dB) 95 THD + N @ 1 kHz (%) 0.12 Iq (Typ) (mA) 1.8 Control interface GPIO Closed/open loop Closed Analog supply (Min) (V) 2.5 Analog supply (Max) (V) 5.5 PSRR (dB) 86 Operating temperature range (C) -40 to 85
DSBGA (YFF) 9 2 mm² 1.254 x 1.2
  • Powerful Mono Class-D Speaker Amplifier
    • 3.24 W (4 , 5 V, 10% THDN)
    • 2.57 W (4 , 5 V, 1% THDN)
    • 1.80 W (8 , 5 V, 10% THDN)
    • 1.46 W (8 , 5 V, 1% THDN)
  • +6 dB Fixed Gain
  • Integrated Image Reject Filter for DAC Noise Reduction
  • Low Output Noise of 20 µV
  • Low Quiescent Current of 1.5 mA
  • Differential Input Impedance of 300 k
  • Auto-Recovering Short-Circuit Protection
  • Thermal-Overload Protection
  • Filter-Free Mono Class-D Amp
  • 9-Ball 1,21 mm × 1,16 mm 0,4mm Pitch WCSP
  • APPLICATIONS
    • Wireless or Cellular Handsets and PDAs
    • Portable Navigation Devices
    • General Portable Audio Devices

  • Powerful Mono Class-D Speaker Amplifier
    • 3.24 W (4 , 5 V, 10% THDN)
    • 2.57 W (4 , 5 V, 1% THDN)
    • 1.80 W (8 , 5 V, 10% THDN)
    • 1.46 W (8 , 5 V, 1% THDN)
  • +6 dB Fixed Gain
  • Integrated Image Reject Filter for DAC Noise Reduction
  • Low Output Noise of 20 µV
  • Low Quiescent Current of 1.5 mA
  • Differential Input Impedance of 300 k
  • Auto-Recovering Short-Circuit Protection
  • Thermal-Overload Protection
  • Filter-Free Mono Class-D Amp
  • 9-Ball 1,21 mm × 1,16 mm 0,4mm Pitch WCSP
  • APPLICATIONS
    • Wireless or Cellular Handsets and PDAs
    • Portable Navigation Devices
    • General Portable Audio Devices

The TPA2037D1 is a 3.2 W high efficiency filter-free class-D audio power amplifier (class-D amp) with 6 dB of fixed gain in a 1.21 mm × 1.16 mm wafer chip scale package (WCSP). The device requires only one external component.

Features like 95% efficiency, 1.5 mA quiescent current, 0.1 µA shutdown current, 81-dB PSRR, 20 µV output noise, and improved RF immunity make the TPA2037D1 class-D amplifier ideal for cellular handsets. A start-up time of 4 ms with no audible pop makes the TPA2037D1 ideal for PDA and smart-phone applications.

The TPA2037D1 is a 3.2 W high efficiency filter-free class-D audio power amplifier (class-D amp) with 6 dB of fixed gain in a 1.21 mm × 1.16 mm wafer chip scale package (WCSP). The device requires only one external component.

Features like 95% efficiency, 1.5 mA quiescent current, 0.1 µA shutdown current, 81-dB PSRR, 20 µV output noise, and improved RF immunity make the TPA2037D1 class-D amplifier ideal for cellular handsets. A start-up time of 4 ms with no audible pop makes the TPA2037D1 ideal for PDA and smart-phone applications.

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Technical documentation

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Type Title Date
* Data sheet 3.2W Mono Class-D Audio Power Amplifier with 6-dB Gain and Auto Short-Circuit Re datasheet (Rev. B) 01 Jun 2010
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 01 May 2013
User guide TPA2037D1EVM User's Guide 08 Dec 2009

Design & development

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

Evaluation board

TPA2037D1YFFEVM — TPA2037D1YFFEVM

The TPA2037D1EVM is an easy-to-use evaluation module which consists of a TPA2037D1 device and all necessary components to evaluate it. The TPA2037D1 is a 6-dB fixed-gain low-power Class-D audio power amplifier capable of delivering 1.46W into 8 Ω and 2.57W into 4 Ω at 1% THD+N (YFF package).

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DSBGA (YFF) 9 View options

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