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PCM1804DBRG4
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PCM1804DBRG4

Product Overview

  • Category: Analog-to-Digital Converter (ADC)
  • Use: Converts analog audio signals into digital format
  • Characteristics:
    • High-resolution audio conversion
    • Low distortion and noise
    • Wide dynamic range
    • Integrated digital filters
  • Package: VQFN-20
  • Essence: Provides high-quality audio conversion for various applications
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Resolution: Up to 24-bit
  • Sampling Rate: Up to 96 kHz
  • Signal-to-Noise Ratio (SNR): 105 dB
  • Total Harmonic Distortion + Noise (THD+N): 0.001%
  • Power Supply Voltage: 3.3 V
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The PCM1804DBRG4 has a total of 20 pins arranged as follows:

  1. VREFP
  2. VREFN
  3. AGND
  4. DVDD
  5. BCK
  6. DIN
  7. LRCK
  8. MCLK
  9. DGND
  10. DOUT
  11. SDMODE
  12. FLT
  13. DEEMPH
  14. OSF
  15. SDO
  16. NC
  17. NC
  18. NC
  19. NC
  20. AVDD

Functional Features

  • High-resolution audio conversion: The PCM1804DBRG4 supports up to 24-bit resolution, ensuring accurate representation of audio signals.
  • Low distortion and noise: With a THD+N of 0.001%, the ADC minimizes unwanted artifacts in the converted digital audio.
  • Wide dynamic range: The device offers a signal-to-noise ratio of 105 dB, allowing for capturing subtle details in the audio.
  • Integrated digital filters: The built-in digital filters enhance the audio quality by reducing unwanted noise and artifacts.

Advantages and Disadvantages

Advantages: - High-resolution conversion for accurate audio reproduction - Low distortion and noise levels - Wide dynamic range for capturing subtle details - Integrated digital filters improve audio quality

Disadvantages: - Limited to a maximum sampling rate of 96 kHz - Requires a 3.3 V power supply

Working Principles

The PCM1804DBRG4 operates by converting analog audio signals into digital format using a delta-sigma modulation technique. It samples the analog input at a high resolution and converts it into a binary representation. The converted digital data can then be processed or stored for further use.

Detailed Application Field Plans

The PCM1804DBRG4 is suitable for various applications, including:

  1. Professional audio recording equipment
  2. Digital mixing consoles
  3. Audio interfaces for computers
  4. Musical instruments
  5. Home theater systems
  6. Automotive audio systems

Detailed and Complete Alternative Models

  1. PCM1804E: Similar specifications and features, but available in a different package (SSOP-20).
  2. PCM1804IDB: Improved performance with lower THD+N and higher SNR.
  3. PCM1804IDBR: Same as PCM1804IDB, but available in a different package (VQFN-20).

Note: This is not an exhaustive list, and there may be other alternative models available from different manufacturers.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av PCM1804DBRG4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of PCM1804DBRG4 in technical solutions:

  1. Q: What is PCM1804DBRG4? A: PCM1804DBRG4 is a high-performance stereo audio analog-to-digital converter (ADC) chip manufactured by Texas Instruments.

  2. Q: What is the purpose of PCM1804DBRG4? A: PCM1804DBRG4 is used to convert analog audio signals into digital format for processing or storage in various technical applications.

  3. Q: What is the sampling rate supported by PCM1804DBRG4? A: PCM1804DBRG4 supports sampling rates up to 192 kHz, allowing for high-quality audio conversion.

  4. Q: What is the resolution of PCM1804DBRG4? A: PCM1804DBRG4 has a resolution of 24 bits, providing accurate and detailed digital representation of the analog audio signal.

  5. Q: Can PCM1804DBRG4 be used in professional audio recording equipment? A: Yes, PCM1804DBRG4 is commonly used in professional audio recording equipment due to its high performance and accuracy.

  6. Q: Does PCM1804DBRG4 require an external power supply? A: Yes, PCM1804DBRG4 requires a separate power supply for operation, typically within the range of 3.3V to 5V.

  7. Q: Is PCM1804DBRG4 compatible with different microcontrollers or DSPs? A: Yes, PCM1804DBRG4 can be easily interfaced with various microcontrollers or digital signal processors (DSPs) using standard communication protocols such as I2C or SPI.

  8. Q: Can PCM1804DBRG4 handle both balanced and unbalanced audio signals? A: Yes, PCM1804DBRG4 supports both balanced and unbalanced audio inputs, providing flexibility in different audio system setups.

  9. Q: Does PCM1804DBRG4 have built-in anti-aliasing filters? A: Yes, PCM1804DBRG4 includes a built-in digital filter to reduce aliasing artifacts during the analog-to-digital conversion process.

  10. Q: What are some typical applications of PCM1804DBRG4? A: PCM1804DBRG4 is commonly used in audio recording devices, musical instruments, audio mixers, sound cards, and other professional audio equipment.

Please note that these answers are general and may vary depending on specific implementation requirements.