Evaluation Boards - Audio Amplifiers

Image Part Number Description / PDF Quantity Rfq
TAS5176DDW6EVM

TAS5176DDW6EVM

Texas Instruments

TAS5176DDW6EVM

3

TAS6424Q1EVM

TAS6424Q1EVM

Texas Instruments

EVAL BOARD FOR TAS6424-Q1

8

TAS5086-5186V6EVM

TAS5086-5186V6EVM

Texas Instruments

EVAL MODULE FOR TAS5086/TAS5186A

1

LM4951ASDBD/NOPB

LM4951ASDBD/NOPB

Texas Instruments

BOARD EVAL FOR LM4951A

2

TPA2014D1EVM

TPA2014D1EVM

Texas Instruments

EVAL MODULE FOR TPA2014D1

1

TAS5352DDV6EVM

TAS5352DDV6EVM

Texas Instruments

TAS5352DDV6EVM

1

TPA3130D2EVM

TPA3130D2EVM

Texas Instruments

EVAL MODULE FOR TPA3130D2

0

DRV632EVM

DRV632EVM

Texas Instruments

EVAL MODULE FOR DRV632

0

LM4675SDBD/NOPB

LM4675SDBD/NOPB

Texas Instruments

BOARD EVAL FOR LM4675SD

2

DRV604PWPEVM

DRV604PWPEVM

Texas Instruments

EVAL MODULE FOR DRV604

1

TAS6424LQ1EVM

TAS6424LQ1EVM

Texas Instruments

EVALUATION MODULE

6

TPA3255EVM

TPA3255EVM

Texas Instruments

EVALUATION MODULE

22

TPA6101A2EVM

TPA6101A2EVM

Texas Instruments

EVAL MOD FOR TPA6101A2

2

TAS5421EVM

TAS5421EVM

Texas Instruments

EVAL BOARD FOR TAS5421

1

TPA0172EVM

TPA0172EVM

Texas Instruments

EVAL MOD AUDIO PWR AMP TPA0172

5

TAS5727EVM

TAS5727EVM

Texas Instruments

EVAL MODULE FOR TAS5727

3

TPA6166A2YFFEVM

TPA6166A2YFFEVM

Texas Instruments

EVAL BOARD AUDIO AMP TPA6166A2

3

TPA3123D2EVM

TPA3123D2EVM

Texas Instruments

TPA3123D2EVM

2

TPA3008D2EVM

TPA3008D2EVM

Texas Instruments

EVAL MODULE FOR TPA3008D2

3

TPA2080D1YZGEVM

TPA2080D1YZGEVM

Texas Instruments

BOARD EVAL FOR TPA2080DI

1

Evaluation Boards - Audio Amplifiers

1. Overview

Evaluation boards for audio amplifiers are specialized hardware platforms designed to test, validate, and develop audio amplifier circuits. These boards provide engineers with a controlled environment to measure performance metrics such as output power, efficiency, and signal fidelity. They play a critical role in modern audio system design by accelerating prototyping, reducing development risks, and ensuring compliance with industry standards. Applications span consumer electronics, automotive audio systems, and professional sound equipment.

2. Major Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Stereo Amplifier BoardsDual-channel output, low THD+N, adjustable gainHome theater systems, portable speakers
D-Class Amplifier BoardsHigh efficiency (>90%), PWM modulation, thermal protectionCar audio systems, battery-powered devices
Headphone Amplifier BoardsLow noise floor, impedance matching, volume controlSmartphones, studio headphones
Digital Audio Amplifier BoardsIntegrated DSP, I2S interface, EQ customizationSmart speakers, IoT audio devices

3. Structure and Components

Typical evaluation boards consist of: - PCB Substrate: Multi-layer FR4 material with impedance-controlled traces - Amplifier IC: Mounted in standard packages (e.g., TSSOP, QFN) - Power Management: DC/DC converters and LDOs for voltage regulation - Connectors: RCA, XLR, or 3.5mm jacks for input/output - Test Points: Probes for measuring voltage, current, and signal integrity - Microcontroller Interface: I2C/SPI ports for configuration and debugging

4. Key Technical Specifications

ParameterDescriptionImportance
Output Power (W)Continuous RMS power deliveryDetermines speaker compatibility
Efficiency (%)Power conversion ratioImpacts thermal design and battery life
THD+N (%)Total harmonic distortion + noiseMeasures audio fidelity
Frequency Response (Hz)Operational bandwidth (20Hz-20kHz typical)Defines audible range coverage
PSRR (dB)Power supply rejection ratioIndicates noise immunity

5. Application Areas

  • Consumer Electronics: Smart speakers, soundbars, gaming headsets
  • Automotive: Infotainment systems, active noise cancellation
  • Professional Audio: Mixing consoles, stage monitors
  • Industrial: Public address systems, emergency communication equipment

6. Leading Manufacturers and Products

ManufacturerKey ProductFeatures
Texas InstrumentsPCM5122EVMDAC + headphone amplifier, 120dB SNR
STMicroelectronicsSTEVAL-CCA026V1Digital input, 2x15W stereo output
Analog DevicesAD2428W-EVALZAutomotive-grade, 4-channel amplifier
Maxim IntegratedMAX98357AEVKITClass D, 15W mono with H-bridge output

7. Selection Guidelines

  • Match amplifier class (A, AB, D) to application requirements
  • Verify voltage/current ratings against power supply constraints
  • Check interface compatibility (analog/digital inputs)
  • Evaluate thermal management features
  • Consider software ecosystem for programmable devices

8. Industry Trends

Future developments include: - Integration of AI for dynamic EQ optimization - GaN transistors enabling higher switching frequencies - Wireless evaluation capabilities (Bluetooth 5.3, LE Audio) - Enhanced diagnostics for predictive maintenance - Miniaturization through 3D packaging technologies

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