Firmenblog über Supply TI Audio Converter Evaluation Board:Audio ADC,Audio CODEC,Audio DAC

Supply TI Audio Converter Evaluation Board:Audio ADC,Audio CODEC,Audio DAC

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I. TI Audio ADC Evaluation Boards (Analog-to-Digital Conversion Category)

The core function of audio ADC evaluation boards is to validate the performance of TI audio ADC devices in converting analog audio signals (e.g., microphone-captured sound, instrument output) into digital signals. Key metrics include sampling accuracy, dynamic range, and signal-to-noise ratio, catering to diverse audio capture scenarios from consumer to professional applications. TI's mainstream audio ADC evaluation boards feature convenient connectivity and comprehensive testing capabilities, enabling rapid integration with external input devices and host computers for performance calibration and data monitoring.

1. Representative Evaluation Boards and Core Devices

TI audio ADC evaluation boards utilize dedicated devices paired with standardized test circuits. Below are two representative products covering dual-channel and quad-channel configurations for mid-to-high-end performance requirements:

- PCM1821EVM Evaluation Board: Features the PCM1821, a dual-channel, 32-bit, 192kHz high-performance audio ADC designed for high-fidelity capture. With a signal-to-noise ratio (SNR) up to 106dB, it is an ideal choice for consumer and entry-level professional audio acquisition. This evaluation board provides a complete testing platform for the PCM1821, enabling rapid verification of the device's core performance without requiring complex additional circuitry.

- ADC3140EVM-PDK Evaluation Board: The core component is the TLV320ADC3140, a four-channel, 768kHz Burr-Brown™ audio ADC with a dynamic range of 106dB. It supports multi-channel synchronous acquisition, making it suitable for complex capture scenarios such as professional audio conferencing and multi-microphone arrays. This evaluation board is a complete Performance Demonstration Kit (PDK) that includes an AC-MB flexible motherboard. It provides power, control, and digital audio data, simplifying system integration testing.

2. Core Features and Performance Advantages

TI audio ADC evaluation boards generally feature the following core characteristics, balancing ease of use with professional testing capabilities:

- Convenient power and control: All boards support USB connection to a PC, which supplies power, control signals, and streaming audio data—eliminating the need for separate power supplies and significantly simplifying test setup. Advanced models (e.g., ADC3140EVM-PDK) enable visual control and performance debugging via the PurePath™ Console software platform for efficient operation.

- Comprehensive test interfaces: Equipped with an onboard microphone for direct recording tests without requiring an external microphone. Features analog input ports and digital audio output ports, enabling direct connection to external analog audio sources (e.g., instruments, microphones) and terminal systems for straightforward terminal system integration verification.

- High-Performance Metrics: Leveraging superior core ADC components, the evaluation board achieves high sampling precision (up to 32-bit), high sampling rates (up to 768kHz), and high signal-to-noise ratio (≥106dB). Its excellent dynamic range effectively suppresses environmental noise and circuit interference, restoring pure analog audio signals to meet high-fidelity capture requirements.

- Flexible Adaptability: Supports hardware control modes, with select models enabling direct connection to digital audio signals and control interfaces. This adaptability to diverse terminal system architectures facilitates rapid migration into actual product designs.

3. Application Scenarios

TI audio ADC evaluation boards are widely used in R&D and testing for various audio acquisition products, primarily including:

- Consumer applications: Portable audio players, smartphone microphone capture, home recording equipment, USB microphones, etc.

- Professional applications: Audio conferencing systems, professional microphones, multi-channel recording equipment, audio mixers, etc.;

- Industrial and communications applications: Voice-activated systems, portable computing devices, audio acquisition for communication terminals, etc.

II. TI Audio Codec Evaluation Board (Bidirectional Conversion)

The Audio Codec Evaluation Board is a comprehensive evaluation platform integrating both ADC and DAC bidirectional conversion capabilities. primarily used to validate the full performance of TI audio codec devices—capable of converting analog audio to digital signals (ADC function) and digital audio to analog signals (DAC function). It also provides auxiliary functions such as audio signal processing, filtering, and amplification, serving as a core tool for developing integrated systems for audio transmission, playback, and capture.

1. Representative Evaluation Boards and Core Devices

TI's audio codec evaluation boards address diverse requirements including low power consumption, high performance, and multi-channel capabilities. The following three products represent mainstream market models, suitable for consumer, industrial, and professional applications:

- TLV320AIC3263EVM-U Evaluation Board: Features the TLV320AIC3263, a low-power stereo audio codec integrating miniDSP, Class D speaker driver, and DirectPath headphone driver. Supports 4 digital microphone inputs with comprehensive functionality, making it ideal for portable audio devices. Drives headphones and small speakers without requiring an external amplifier, serving as an optimal solution for consumer-grade portable products.

- TAC5112EVM-K Evaluation Board: The core component is the TAC5112, a dual-channel low-power stereo audio codec featuring an ADC dynamic range of 105dB and a DAC dynamic range of 114dB. It is suitable for industrial and professional applications such as land mobile radios, IP telephony, and professional audio. This evaluation board requires pairing with the AC-MB flexible main board, which provides power, control, and digital audio data, ensuring high testing convenience.

- TLV320DAC3120EVM-U Evaluation Board: The core component is the TLV320DAC3120, a monaural audio codec integrating a 2.5W mono Class D speaker amplifier, 60mW headphone driver, and audio processing capabilities. It supports miniDSP software development via the PurePath Studio development environment, enabling rapid implementation of signal processing functions such as audio filtering and equalization, making it suitable for small audio playback devices.

2. Core Features and Performance Advantages

The TI audio codec evaluation board combines the core strengths of both ADC and DAC, while offering unique integrated and intelligent characteristics. Key highlights include:

- Bidirectional conversion integration: Simultaneously supports both ADC and DAC functions, enabling end-to-end verification of the entire audio signal acquisition, conversion, and playback process. Eliminates the need to build separate ADC and DAC test circuits, significantly boosting development efficiency. Select high-end models (e.g., evaluation boards for the TAC5212 series) achieve high-performance bidirectional conversion with 118dB ADC dynamic range and 119dB DAC dynamic range.

- Integrated Design for Simplified Systems: Core codec devices integrate audio amplification, filtering, and signal processing. Evaluation boards directly drive loads like headphones and speakers without requiring external amplifiers. Select models integrate digital microphone interfaces and line-in/line-out ports, supporting diverse audio input/output scenarios while reducing external component costs.

- Balancing low power consumption with high performance: Models optimized for portable devices (e.g., TLV320AIC3263, TLV320DAC3120) feature low power consumption, making them suitable for battery-powered equipment; Professional-grade models (e.g., TAC5112, TAC5212) deliver high dynamic range and high signal-to-noise ratio, reproducing high-quality audio signals to meet professional requirements.

- Comprehensive software development support: Supports the TI PurePath Studio development environment and Codec Control software, providing a graphical user interface for drag-and-drop audio signal processing workflow creation and automatic DSP code generation, simplifying audio algorithm development and debugging. Select models support SPI or I2C control to accommodate different system control architectures.

3. Application Scenarios

TI audio codec evaluation boards serve as core tools for integrated audio system development, applicable in scenarios including:

- Consumer applications: Smartphones, tablets, portable audio players, headphones, Bluetooth speakers, USB audio devices, etc.

- Industrial and communications applications: Land mobile radios, IP phones, video conferencing systems, industrial audio terminals, etc.

- Professional applications: Professional audio mixers, control planes, compact recording/playback devices, etc.;

- Automotive applications: Evaluation boards for select automotive-grade models (e.g., TAD5112-Q1) support automotive audio system development.

III. TI Audio DAC Evaluation Board (Digital-to-Analog Conversion Category)

The core function of audio DAC evaluation boards is to validate the performance of TI audio DAC devices in converting digital audio signals (e.g., stored music files, digital audio streams) into analog audio signals. Key focus areas include output accuracy, distortion levels, dynamic range, and other metrics. The primary objective is to reproduce high-quality analog audio, catering to diverse scenarios ranging from consumer Hi-Fi to professional-grade audio playback.

1. Representative Evaluation Boards and Core Components

TI's audio DAC evaluation boards span high-precision, high-fidelity, and low-power segments. The following three products cover mainstream applications, catering to both consumer Hi-Fi and professional-grade playback:

- PCM5242RHBEVM Evaluation Board: Features the PCM5242, a 32-bit, 384kHz stereo differential output DAC with 114dB dynamic range and 4.2VRMS DirectPath™ output. Designed for high-fidelity playback, it targets premium consumer applications like Hi-Fi audio systems and high-end audio players. This evaluation board can be used with PurePath Studio to fully leverage the device's fixed-function processing and mini-DSP capabilities, simplifying software development and prototyping.

- TIDA-060031 Evaluation Board: A high-precision DAC reference design evaluation board based on the DAC11001 series devices (DAC11001A, DAC11001B). The DAC11001 is a 20-bit, low-noise, ultra-high-performance precision R-2R ladder network DAC. Unlike mainstream Δ-Σ architectures, it emphasizes high-precision dynamic signal generation. Total Harmonic Distortion plus Noise (THD+N) is as low as 108dB (DAC11001A) and 111dB (DAC11001B). It is suitable for high-end Hi-Fi, AV receivers, streaming media players, and other applications, demonstrating the advantages and characteristics of precision R-2R DACs in high-fidelity audio applications.

- TAD5212EVM-K Evaluation Board: Features the TAD5212, a low-power stereo audio DAC with 119dB dynamic range. Includes an automotive-grade variant (TAD5212-Q1) for automotive audio systems and high-end consumer audio playback devices. This evaluation board pairs with the AC-MB flexible main board, supporting USB power supply and control for rapid verification of device playback performance and compatibility.

2. Core Features and Performance Advantages

Leveraging the performance strengths of core DAC devices and standardized test circuits, TI's audio DAC evaluation boards offer the following core features:

- High-fidelity output capability: Core devices employ high-precision architectures (Δ-Σ or R-2R) delivering high dynamic range (up to 121dB), low THD+N (as low as 108dB), and low idle noise (as low as 1.9μVrms). This effectively suppresses signal distortion, restoring pure analog audio signals to meet high-fidelity playback demands. Select models support high sampling rates (up to 768kHz) for playback of high-definition audio files.

- Flexible Output Interfaces and Load Adaptation: Equipped with line-out, headphone output, and other interfaces for direct connection to external playback devices like headphones, speakers, and amplifiers. Select models (e.g., PCM5242RHBEVM) support differential output, further enhancing interference resistance for high-end audio systems. Some models integrate headphone and line-level drivers, eliminating the need for external amplification to drive loads.

- Convenient Testing and Debugging: Supports USB connection to PCs, which provide power, control signals, and streaming audio data. Output volume, equalizer settings, filter parameters, and real-time output performance monitoring can be adjusted via host software (e.g., PurePath Studio). Select models support optical input (Toslink®) and I2S-to-SPI conversion to accommodate diverse digital audio input scenarios.

- Multi-scenario adaptability: Covers consumer, professional, and automotive applications. Low-power models suit portable devices, high-precision models cater to premium Hi-Fi equipment, and automotive-grade models integrate into car audio systems, meeting diverse product performance requirements. Select models support software or hardware configuration for flexible adaptation to different system architectures.

3. Application Scenarios

TI audio DAC evaluation boards are primarily used for R&D and testing of various audio playback products, including:

- Consumer scenarios: Hi-Fi audio systems, premium audio players, Bluetooth speakers, smartphones, tablets, soundbars, etc.

- Professional scenarios: AV receivers, streaming media players, professional audio monitoring equipment, audio amplifiers, etc.

- Automotive applications: Car audio systems, in-vehicle audio terminals, etc.;

- Industrial applications: Industrial audio playback terminals, high-end test equipment audio output, etc.