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PCM1704U
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PCM1704U

Product Overview

  • Category: Digital-to-Analog Converter (DAC)
  • Use: Converts digital audio signals into analog audio signals
  • Characteristics: High-resolution audio output, low distortion, wide dynamic range
  • Package: Integrated Circuit (IC)
  • Essence: Provides high-quality audio conversion for various applications
  • Packaging/Quantity: Available in a standard IC package, quantity varies based on supplier

Specifications

  • Resolution: 24-bit
  • Sampling Rate: Up to 192 kHz
  • Total Harmonic Distortion + Noise: <0.0008%
  • Dynamic Range: >120 dB
  • Output Voltage: 2.5 Vrms
  • Power Supply: +5V DC

Pin Configuration (Detailed)

The PCM1704U has a total of 28 pins. The pin configuration is as follows:

  1. VOUTR: Right Channel Analog Output
  2. VOUTL: Left Channel Analog Output
  3. AGND: Analog Ground
  4. DGND: Digital Ground
  5. AVCC: Analog Power Supply
  6. DVCC: Digital Power Supply
  7. BCK: Bit Clock Input
  8. LRCK: Word Clock Input
  9. DATA: Serial Audio Data Input
  10. MUTE: Mute Control Input
  11. OSF: Oversampling Filter Selection
  12. DEM: De-emphasis Control Input
  13. DEMP: De-emphasis Polarity Control Input
  14. VREF: Reference Voltage Output
  15. VCOM: Common Mode Voltage Output
  16. VOS: Offset Voltage Output
  17. VNEG: Negative Power Supply
  18. VPOS: Positive Power Supply 19-28. NC: No Connection

Functional Features

  • High-resolution audio output for accurate sound reproduction
  • Low distortion ensures faithful audio reproduction
  • Wide dynamic range captures subtle details in the audio signal
  • Supports various digital audio formats
  • Mute control for convenient audio playback management
  • De-emphasis control for compatibility with different audio sources

Advantages and Disadvantages

Advantages: - High-quality audio output - Accurate sound reproduction - Wide dynamic range - Versatile compatibility with digital audio formats

Disadvantages: - Requires external power supply - Limited pin configuration options

Working Principles

The PCM1704U operates by receiving a digital audio signal through the DATA input. It then processes the digital data using internal circuitry to convert it into an analog audio signal. The converted analog signal is then available at the VOUTR and VOUTL outputs for further amplification and playback.

Detailed Application Field Plans

The PCM1704U is widely used in professional audio equipment, high-end consumer audio systems, and digital music players. Its high-resolution audio output and low distortion make it suitable for applications that require accurate sound reproduction, such as studio monitoring, audiophile-grade audio systems, and high-fidelity music playback.

Alternative Models (Detailed and Complete)

  • PCM1796: Similar performance to PCM1704U, but with additional features like built-in digital filters and selectable output modes.
  • AK4490: High-performance DAC with advanced digital filtering and low noise floor.
  • ES9038PRO: Flagship DAC with exceptional audio quality and extensive feature set.
  • CS4398: Cost-effective DAC with good performance and wide industry adoption.

(Note: This list is not exhaustive and there are several other alternative models available in the market.)

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan PCM1704U dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of PCM1704U in technical solutions:

  1. Q: What is PCM1704U? A: PCM1704U is a high-performance digital-to-analog converter (DAC) chip manufactured by Texas Instruments.

  2. Q: What are the key features of PCM1704U? A: PCM1704U offers 24-bit resolution, supports sampling rates up to 96 kHz, and provides excellent dynamic range and low distortion.

  3. Q: How can PCM1704U be used in audio applications? A: PCM1704U can be used as a DAC in audio systems such as CD players, digital audio workstations, and high-end audio equipment.

  4. Q: Does PCM1704U require external components for operation? A: Yes, PCM1704U requires external components such as a power supply, analog output stage, and control interface for proper operation.

  5. Q: What is the power supply requirement for PCM1704U? A: PCM1704U typically operates on a dual power supply of ±15V, but it can also work with other voltage levels within specified limits.

  6. Q: Can PCM1704U handle different input formats? A: No, PCM1704U only accepts standard PCM digital audio input in I2S format.

  7. Q: How does PCM1704U handle jitter in the input signal? A: PCM1704U has built-in jitter rejection mechanisms that help minimize the impact of jitter on the audio output.

  8. Q: Is PCM1704U suitable for professional audio applications? A: Yes, PCM1704U's high-resolution and low-distortion characteristics make it suitable for professional audio applications where accuracy is crucial.

  9. Q: Can PCM1704U be used in DIY audio projects? A: Yes, PCM1704U can be used in DIY audio projects to build high-quality DACs or upgrade existing audio equipment.

  10. Q: Are there any alternative DAC chips similar to PCM1704U? A: Yes, some alternatives to PCM1704U include PCM1794A, AK4499EQ, and ESS Sabre ES9038PRO, which offer similar performance levels.

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