TPA32xx 1/2ch

Class D Audio Amplifier

With Post Filter Feedback

Overview

EAUMT-0XX0-X-FB is a 1(PBTL) or 2 channel (BTL) high quality class D audio amplifier module base on TPA32xx with customized design and mainly suit for both consumer and professional project.
TPA32xx is a high-performance Class-D power amplifier that enables true premium sound quality with Class-D efficiency. It features an advanced integrated feedback design and proprietary high speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality.
By combining PFFB, improve analog input front design and upgrade higher quality components to obtain highest performance and lowest noise and distortion, this module provides an excellent audio solution that highly compact and efficiency with state-of-the-art performance.
Along with current EAUMT-0XX0-X module that released years ago, some high-end customer expects more implementation on post filter feedback and more option on DIY, a fully new and upgrade version now is your attempts and choices.

Key Features

• 18uV (TPA3255) Output Noise (AES17,A-weighted)
• 15uV (TPA3251) Output Noise (AES17,A-weighted)
• 260W @ 1% THD+N, 1kHz, 4Ω (TPA3255)
• 140W @ 1% THD+N, 1kHz, 4Ω (TPA3251)
• 125dBA dynamic range
• BTL/PBTL configuration for best audio performance
• MELF resistor for audio path to get best performance and audio quality
• Fully compatibility one design for both BTL and PBTL (TPA3251 and TPA3255)
• 7G23B or VER2923,APG2923,HA3588 inductors compatible design
• Fully differential signal chain from input to output for lowest noise and distortion
• Extra optional input buffer for single-end input source
• On board integrated low noise analog and housekeeping power supply
• Compact size (120mm*85mm*40mm – L*W*H)
• Additional power ON/OFF reset circuit for Pop noise suppression
• Single supply voltage range 36V~51V

Applications

• Active Loudspeakers and Power Subwoofers
• Installation audio products
• High-end stereo and multi-channel amplifiers
• Bluetooth & Wi-Fi Audio Product
• Sound bars, Docking, Radios
• Home Theater System & AVR’s

Download

• User Manual and Datasheet: DS_EAUMT-0xx0-x-FB_Rev1.1
• DS_EAUMT-0xx0-x-FB_Rev1.3

TPA3251 3ch

PurePath™ Ultra-HD

Class D Audio Amplifier

 This Product not available anymore please consider 4 Channel

Overview

EAUMT-0100-3-A is a 3 channel (BTL/PBTL) high quality class D audio amplifier module base on TPA3251 with customized design and mainly suit for both consumer and professional project.
TPA3251 is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. The device can drive up to 2 x 135 W into 4-Ω load and 1 x 235 W into 2-Ω load.
In addition to excellent audio performance, TPA3251 achieves both high power efficiency and very low power stage idle losses below 1 W. This is achieved through the use of 60 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.
With improved design to obtain highest performance and lowest noise and distortion, this module provide an excellent audio solution that highly compact and efficiency with state-of-the-art performance.

Key Features

• < 65uV Output Noise (AES17,A-weighted)
• 100W @ 1% THD+N, 1kHz, 4Ω, CH1&2
• 200W @ 1% THD+N, 1kHz, 2Ω, CH3
• 135W @ 10% THD+N, 1kHz, 4Ω, CH1&2
• 235W @ 10% THD+N, 1kHz, 4Ω, CH3
• 111dBA dynamic range
• THD+N < 0.01%, 0.3W – 85W, 4Ω
• 90% Efficient Class-D Operation (4 Ω)
• Fully differential layout design for lowest noise and distortion
• Very Compact size(105mm*100mm*36.5mm – L*W*H)
• Additional power ON/OFF reset circuit for Pop noise suppression
• BTL configuration only for best audio performance
• AUX Power Supply Output(12V/0.2A) for DSP Pre Amplifier
• Single supply voltage range 24V~30V(UVP:24V)

Applications

• Active Loudspeakers and Power Subwoofers
• Installation audio products
• High-end stereo and multi-channel amplifiers
• Bluetooth & Wi-Fi Audio Product
• Sound bars, Docking, Radios
• Home Theater System & AVR’s

Download

• User Manual and Datasheet: DS_EAUMT-0100-3-A_Rev1.0

TPA3251 4ch

PurePath™ Ultra-HD

Class D Audio Amplifier

Overview

EAUMT-0100-4-A is a 4 channel (BTL) high quality class D audio amplifier module base on TPA3251 with customized design and mainly suit for both consumer and professional project.
TPA3251 is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. The device can drive up to 2 x 135 W into 4-Ω load and 2 x 175 W into 3-Ω load.
In addition to excellent audio performance, TPA3251 achieves both high power efficiency and very low power stage idle losses below 1 W. This is achieved through the use of 60 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.
With improved design to obtain highest performance and lowest noise and distortion, this module provide an excellent audio solution that highly compact and efficiency with state-of-the-art performance.

Key Features

• < 65uV Output Noise (AES17,A-weighted)
• 100W @ 1% THD+N, 1kHz, 4Ω
• 135W @ 10% THD+N, 1kHz, 4Ω
• 111dBA dynamic range
• THD+N < 0.01%, 0.3W – 85W, 4Ω
• 90% Efficient Class-D Operation (4 Ω)
• Fully differential layout design for lowest noise and distortion
• Very Compact size(105mm*100mm*36.5mm – L*W*H)
• Additional power ON/OFF reset circuit for Pop noise suppression
• BTL configuration only for best audio performance
• AUX Power Supply Output(12V/0.2A) for DSP Pre Amplifier
• Single supply voltage range 24V~30V(UVP:24V)

Applications

• Active Loudspeakers and Power Subwoofers
• Installation audio products
• High-end stereo and multi-channel amplifiers
• Bluetooth & Wi-Fi Audio Product
• Sound bars, Docking, Radios
• Home Theater System & AVR’s

Download

• User Manual and Datasheet: DS_EAUMT-0100-4-A_Rev1.0

TPA3255 1ch

PurePath™ Ultra-HD

Class D Audio Amplifier

Overview

EAUMT-0480-1-A is a 1 channel (PBTL) high quality class D audio amplifier module base on TPA3255 with customized design and mainly suit for both consumer and professional project.
TPA3255 is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. The device can drive up to 1 x 600 W into 2-Ω load at 10% THD and 1 x 480W into 2-Ω load at 1% THD.
In addition to excellent audio performance, TPA3255 achieves both high power efficiency and very low power stage idle losses below 2.5 W. This is achieved through the use of 85 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.
With improved design to obtain highest performance and lowest noise and distortion, this module provide an excellent audio solution that highly compact and efficiency with state-of-the-art performance.

Key Features

• < 85uV Output Noise (AES17,A-weighted)
• 480W @ 1% THD+N, 1kHz, 2Ω
• 600W @ 10% THD+N, 1kHz, 2Ω
• 111dBA dynamic range
• THD+N < 0.01%, 0.3W – 300W, 3Ω
• 90% Efficient Class-D Operation (4 Ω)
• Fully differential layout design for lowest noise and distortion
• Very Compact size(105mm*90mm*38.5mm – L*W*H)
• Additional power ON/OFF reset circuit for Pop noise suppression
• BTL configuration only for best audio performance
• AUX Power Supply Output(12V/0.2A) for DSP Pre Amplifier
• Single supply voltage range 24V~51V(UVP:24V)

Applications

• Active Loudspeakers and Power Subwoofers
• Installation audio products
• High-end stereo and multi-channel amplifiers
• Bluetooth & Wi-Fi Audio Product
• Sound bars, Docking, Radios
• Home Theater System & AVR’s

Download

• User Manual and Datasheet: DS_EAUMT-0480-1-A_Rev1.0

TPA3250 2ch

PurePath™ Ultra-HD

Class D Audio Amplifier

This Product not available anymore please consider TPA3255

Overview

• EAUMT-0050-2-A is a 2 channel class D amplifier module base on TPA3250EVM with customized design and mainly suit for both consumer and professional DIY project.
• To obtain lower noise and lower THD+N, We successful achieved by improved design on low noise analog front end, PCB layout and also components selection.
• This module had been tested and verified, please refer to Test Report for detail.

Key Features

• Enhanced design with very low output noise (85uV/A-weighted) and lower THD+N (0.0025%/10W/8ohm)
• Fully differential layout design for better noise cancellation
• Smaller and Compact size(85mm*60mm*13mm – L*W*H)
• Additional power ON/OFF reset circuit for Pop noise suppression
• BTL configuration only for best audio performance
• Single supply voltage range 18V~32 V(UVP:18V)

Board Setup

• Below show the detail setup of this Amplifier Board,including 2 Power supply connectors that easier and one more option for user in their DIY assembly.
• OUT-A ~ OUT-D are the audio output of amplifier for you speaker connection.
• INA ~ IND are the audio input(Single-end or Differential) from your Pre-Amplifier or other devices.
• 3V3 LED and warming LED are status indicator for board operation.

Appendix Picture

• Full assembly board

• Output noise level (A-weighted)

• THD+N vs frequency (20W/4ohm)

• THD+N vs output power

TPA3255 2ch

PurePath™ Ultra-HD

Class D Audio Amplifier

Upgraded to B Version From July-2020

• Change Op-Amp to DIP-8 type for more DIY flexibility(replaceable)
• Change Coupling Cap to DIP type for easier replaceable
• Use Audio Grade Coupling Capacitor( Nichicon-UES/UKT or ELNA-SILMIC) on Analog Input Path

Overview

EAUMT-0260-2-B is a 2 channel (BTL) high quality class D audio amplifier module base on TPA3255 with customized design and mainly suit for both consumer and professional project.
TPA3255 is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. The device can drive up to 2 x 315 W into 4-Ω load at 10% THD and 2 x 150W unclipped into 8-Ω load.
In addition to excellent audio performance, TPA3255 achieves both high power efficiency and very low power stage idle losses below 2.5 W. This is achieved through the use of 85 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.
With improved design to obtain highest performance and lowest noise and distortion, this module provide an excellent audio solution that highly compact and efficiency with state-of-the-art performance.

Key Features

• < 85uV Output Noise (AES17,A-weighted)
• 260W @ 1% THD+N, 1kHz, 4Ω
• 315W @ 10% THD+N, 1kHz, 4Ω
• 111dBA dynamic range
• THD+N < 0.01%, 0.3W – 200W, 4Ω
• 90% Efficient Class-D Operation (4 Ω)
• Fully differential layout design for lowest noise and distortion
• Very Compact size(105mm*90mm*38.5mm – L*W*H)
• Additional power ON/OFF reset circuit for Pop noise suppression
• BTL configuration only for best audio performance
• AUX Power Supply Output(12V/0.2A) for DSP Pre Amplifier
• Single supply voltage range 24V~51V(UVP:24V)

Applications

• Active Loudspeakers and Power Subwoofers
• Installation audio products
• High-end stereo and multi-channel amplifiers
• Bluetooth & Wi-Fi Audio Product
• Sound bars, Docking, Radios
• Home Theater System & AVR’s

Download

• User Manual and Datasheet: DS_EAUMT-0260-2-A_Rev1.0
• PFFB modification Note: PFFB Modification on EAUMT Serise Amplifier Board

TPA3251 2ch

PurePath™ Ultra-HD

Class D Audio Amplifier

 This Product not available anymore please consider TPA3255

Overview

EAUMT-0140-2-A is a 2 channel (BTL) high quality class D audio amplifier module base on TPA3251 with customized design and mainly suit for both consumer and professional project.
TPA3251 is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. The device can drive up to 2 x 175 W into 4-Ω load and 2 x 220 W into 3-Ω load.
In addition to excellent audio performance, TPA3251 achieves both high power efficiency and very low power stage idle losses below 1 W. This is achieved through the use of 60 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.
With improved design to obtain highest performance and lowest noise and distortion, this module provide an excellent audio solution that highly compact and efficiency with state-of-the-art performance.

Key Features

• < 65uV Output Noise (AES17,A-weighted)
• 140W @ 1% THD+N, 1kHz, 4Ω
• 175W @ 10% THD+N, 1kHz, 4Ω
• 111dBA dynamic range
• THD+N < 0.01%, 0.3W – 125W, 4Ω
• 90% Efficient Class-D Operation (4 Ω)
• Fully differential layout design for lowest noise and distortion
• Very Compact size(105mm*90mm*38.5mm – L*W*H)
• Additional power ON/OFF reset circuit for Pop noise suppression
• BTL configuration only for best audio performance
• AUX Power Supply Output(12V/0.2A) for DSP Pre Amplifier
• Single supply voltage range 24V~36V(UVP:24V)

Applications

• Active Loudspeakers and Power Subwoofers
• Installation audio products
• High-end stereo and multi-channel amplifiers
• Bluetooth & Wi-Fi Audio Product
• Sound bars, Docking, Radios
• Home Theater System & AVR’s

Download

• User Manual and Datasheet: DS_EAUMT-0140-2-A_Rev1.0