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DAC902E

DAC902E

Product Overview

Category: Digital-to-Analog Converter (DAC)

Use: The DAC902E is a high-performance digital-to-analog converter designed for audio applications. It converts digital audio signals into analog signals, allowing them to be played through speakers or headphones.

Characteristics: - High-resolution conversion: The DAC902E supports up to 24-bit resolution, ensuring accurate and detailed audio reproduction. - Low distortion: It provides low total harmonic distortion (THD) and noise, resulting in clear and high-fidelity sound output. - Wide dynamic range: The DAC902E offers a wide dynamic range, preserving the nuances of the original audio source. - Sampling rate compatibility: It supports various sampling rates, including popular rates like 44.1 kHz and 48 kHz. - Compact package: The DAC902E comes in a small form factor, making it suitable for integration into portable audio devices. - Easy integration: It can be easily interfaced with microcontrollers or audio processing units.

Package and Quantity: The DAC902E is available in a surface-mount package. Each package contains one DAC902E unit.

Specifications

  • Resolution: Up to 24 bits
  • Sampling Rates: 32 kHz to 192 kHz
  • Total Harmonic Distortion + Noise (THD+N): <0.001%
  • Signal-to-Noise Ratio (SNR): >110 dB
  • Output Voltage Range: 0 to 2.5 V
  • Power Supply: 3.3 V
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The DAC902E has the following pin configuration:

Pin 1: GND Pin 2: VREF Pin 3: VDD Pin 4: SDATA Pin 5: SCLK Pin 6: LRCK Pin 7: MUTE Pin 8: VOUT

Functional Features

  • High-quality audio conversion: The DAC902E utilizes advanced digital signal processing algorithms to ensure accurate and faithful audio reproduction.
  • Low-latency operation: It provides minimal delay between the input digital signal and the output analog signal, making it suitable for real-time audio applications.
  • Built-in mute function: The DAC902E includes a mute pin that can be controlled to silence the audio output when needed.
  • Power-efficient design: It is designed to minimize power consumption while maintaining optimal performance.

Advantages and Disadvantages

Advantages: - High-resolution audio conversion - Low distortion and noise - Wide dynamic range - Compact size for easy integration - Versatile sampling rate compatibility

Disadvantages: - Requires external voltage reference (VREF) - Limited output voltage range

Working Principles

The DAC902E operates by receiving digital audio data through the SDATA pin. This data is synchronized with the clock signal provided through the SCLK pin. The LRCK pin determines whether the incoming data represents the left or right channel. The digital audio data is then converted into an analog signal, which is available at the VOUT pin.

Application Field Plans

The DAC902E is well-suited for various audio applications, including: 1. Portable audio players 2. Headphone amplifiers 3. Digital audio interfaces 4. Home theater systems 5. Car audio systems

Alternative Models

  1. DAC901E: Similar to the DAC902E but without the mute function.
  2. DAC903E: Offers higher resolution (up to 32 bits) for audiophile-grade applications.
  3. DAC904E: Provides a wider output voltage range for specialized audio equipment.

These alternative models offer different features and specifications to cater to specific application requirements.

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10个与DAC902E在技术解决方案中的应用相关的常见问题及解答

Sure! Here are 10 common questions and answers related to the application of DAC902E in technical solutions:

  1. Q: What is DAC902E? A: DAC902E is a digital-to-analog converter (DAC) chip commonly used in technical solutions to convert digital signals into analog voltages.

  2. Q: What is the voltage range supported by DAC902E? A: DAC902E supports a voltage range of 0V to Vref, where Vref is the reference voltage provided to the chip.

  3. Q: How many bits of resolution does DAC902E have? A: DAC902E has a resolution of 12 bits, allowing for precise control over the analog output voltage.

  4. Q: Can DAC902E be used in both single-ended and differential mode? A: Yes, DAC902E can be used in both single-ended and differential mode, depending on the application requirements.

  5. Q: What is the maximum sampling rate of DAC902E? A: The maximum sampling rate of DAC902E is typically 1 MSPS (Mega Samples Per Second).

  6. Q: Does DAC902E require an external reference voltage? A: Yes, DAC902E requires an external reference voltage, which determines the maximum output voltage range.

  7. Q: Can DAC902E operate with a wide supply voltage range? A: Yes, DAC902E can operate with a supply voltage range of 2.7V to 5.5V, making it suitable for various applications.

  8. Q: Is DAC902E compatible with different communication interfaces? A: Yes, DAC902E supports standard serial communication interfaces such as SPI (Serial Peripheral Interface) and I2C (Inter-Integrated Circuit).

  9. Q: Can multiple DAC902E chips be cascaded together? A: Yes, multiple DAC902E chips can be cascaded together to achieve higher resolution or drive multiple analog outputs simultaneously.

  10. Q: What are some typical applications of DAC902E? A: DAC902E is commonly used in audio systems, industrial control systems, instrumentation, test equipment, and other applications requiring precise analog voltage generation.

Please note that the answers provided here are general and may vary depending on the specific implementation and datasheet of the DAC902E chip.