Texas Instruments
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PCM1808PW
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PCM1808PW

Product Overview

  • Category: Analog-to-Digital Converter (ADC)
  • Use: Converts analog audio signals into digital format
  • Characteristics:
    • High-resolution audio conversion
    • Low power consumption
    • Wide dynamic range
    • Small package size
  • Package: TSSOP-20
  • Essence: Provides high-quality audio conversion for various applications
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Resolution: Up to 24-bit
  • Sampling Rate: Up to 96 kHz
  • Signal-to-Noise Ratio (SNR): 105 dB
  • Total Harmonic Distortion (THD): 0.005%
  • Power Supply Voltage: 2.7V to 5.5V
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The PCM1808PW has a total of 20 pins, which are assigned as follows:

  1. VCC
  2. VCC
  3. AGND
  4. DGND
  5. BICK
  6. LRCK
  7. DIN
  8. DOUT
  9. MCLK
  10. FLT
  11. FLT
  12. FLT
  13. FLT
  14. FLT
  15. FLT
  16. FLT
  17. FLT
  18. FLT
  19. FLT
  20. FLT

Functional Features

  • High-resolution audio conversion: The PCM1808PW supports up to 24-bit resolution, ensuring accurate and detailed audio reproduction.
  • Low power consumption: Designed with power efficiency in mind, the ADC minimizes energy consumption without compromising performance.
  • Wide dynamic range: With a signal-to-noise ratio of 105 dB, the PCM1808PW captures audio with excellent clarity and minimal background noise.
  • Small package size: The TSSOP-20 package allows for compact integration into various electronic devices.

Advantages and Disadvantages

Advantages: - High-resolution audio conversion - Low power consumption - Wide dynamic range - Small package size

Disadvantages: - Limited to a maximum sampling rate of 96 kHz

Working Principles

The PCM1808PW utilizes delta-sigma modulation to convert analog audio signals into digital format. It employs oversampling techniques to achieve high resolution and accuracy. The incoming analog signal is sampled at a high frequency, and the resulting data is processed to produce a digital representation of the audio waveform.

Application Field Plans

The PCM1808PW is suitable for a wide range of applications, including: - Audio recording equipment - Musical instruments - Home theater systems - Automotive audio systems - Professional audio equipment

Alternative Models

  • PCM1804: Similar specifications with a different pin configuration
  • PCM1806: Lower resolution and sampling rate, but smaller package size
  • PCM1802: Higher resolution and sampling rate, but larger package size

Note: This entry provides a brief overview of the PCM1808PW. For more detailed information, please refer to the product datasheet or consult the manufacturer's documentation.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van PCM1808PW in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of PCM1808PW:

  1. Q: What is PCM1808PW? A: PCM1808PW is a stereo audio analog-to-digital converter (ADC) chip manufactured by Texas Instruments.

  2. Q: What is the purpose of PCM1808PW? A: PCM1808PW is used to convert analog audio signals into digital format for processing or storage in various technical solutions.

  3. Q: What is the input voltage range supported by PCM1808PW? A: PCM1808PW supports an input voltage range of ±2.5V, making it suitable for both consumer and professional audio applications.

  4. Q: What is the sampling rate supported by PCM1808PW? A: PCM1808PW supports sampling rates from 8 kHz to 96 kHz, allowing for high-quality audio conversion.

  5. Q: Does PCM1808PW require an external clock source? A: Yes, PCM1808PW requires an external master clock source for proper operation. The clock frequency should be within the supported range.

  6. Q: Can PCM1808PW be powered directly from a microcontroller? A: No, PCM1808PW requires a separate power supply with a voltage range of 2.7V to 5.5V. It is not designed to be powered directly from a microcontroller.

  7. Q: What is the output format of PCM1808PW? A: PCM1808PW provides digital audio output in I2S format, which is a widely used standard for transmitting audio data between devices.

  8. Q: Is PCM1808PW compatible with both 16-bit and 24-bit audio formats? A: Yes, PCM1808PW supports both 16-bit and 24-bit audio formats, allowing for flexibility in different applications.

  9. Q: Can PCM1808PW be used in battery-powered devices? A: Yes, PCM1808PW has a low power consumption and can be used in battery-powered devices, making it suitable for portable audio solutions.

  10. Q: Are there any evaluation boards or development kits available for PCM1808PW? A: Yes, Texas Instruments provides evaluation boards and development kits that include PCM1808PW, allowing for easy prototyping and testing of audio applications.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.