Texas Instruments
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PCM1861DBT
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PCM1861DBT

Product Overview

Category: Audio Codec
Use: Digital-to-Analog Converter (DAC)
Characteristics: High-performance, low-power consumption
Package: 48-TQFP
Essence: Converts digital audio signals into analog signals
Packaging/Quantity: Tape and Reel (2500 units per reel)

Specifications

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

Detailed Pin Configuration

The PCM1861DBT has a total of 48 pins. Here is the detailed pin configuration:

  1. VDDA
  2. VSSA
  3. AGND
  4. AVDD
  5. DVDD
  6. RESET
  7. MCLK
  8. BCLK
  9. LRCLK
  10. SDIN
  11. SDO
  12. SDOUT
  13. SDOUT
  14. SDOUT
  15. SDOUT
  16. SDOUT
  17. SDOUT
  18. SDOUT
  19. SDOUT
  20. SDOUT
  21. SDOUT
  22. SDOUT
  23. SDOUT
  24. SDOUT
  25. SDOUT
  26. SDOUT
  27. SDOUT
  28. SDOUT
  29. SDOUT
  30. SDOUT
  31. SDOUT
  32. SDOUT
  33. SDOUT
  34. SDOUT
  35. SDOUT
  36. SDOUT
  37. SDOUT
  38. SDOUT
  39. SDOUT
  40. SDOUT
  41. SDOUT
  42. SDOUT
  43. SDOUT
  44. SDOUT
  45. SDOUT
  46. SDOUT
  47. SDOUT
  48. SDOUT

Functional Features

  • High-resolution audio conversion
  • Low power consumption
  • Integrated digital filters for enhanced audio quality
  • Multiple output options (analog, I2S, TDM)
  • Built-in volume control and mute functions
  • Flexible power supply options

Advantages and Disadvantages

Advantages: - High-performance audio conversion - Low power consumption - Versatile output options - Integrated volume control

Disadvantages: - Limited pin configuration options - Relatively high cost compared to some alternatives

Working Principles

The PCM1861DBT operates by receiving digital audio signals through its input pins (SDIN) and converting them into analog signals using its internal DAC. The converted analog signals can then be outputted through the available output pins (SDOUT). The device also incorporates digital filters to enhance the audio quality and provides various features like volume control and mute functions.

Detailed Application Field Plans

The PCM1861DBT is suitable for a wide range of applications, including:

  1. Professional audio equipment
  2. Consumer audio devices
  3. Automotive audio systems
  4. Home theater systems
  5. Musical instruments

Detailed and Complete Alternative Models

  1. PCM1860: Similar specifications and features, but in a different package (32-TQFP).
  2. PCM1862: Higher resolution (32-bit) and additional features like digital mixing and dynamic range compression.
  3. PCM1863: Lower power consumption and reduced pin count (24-TQFP).

These alternative models offer similar functionality and can be considered based on specific requirements and constraints.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací PCM1861DBT v technických řešeních

Sure! Here are 10 common questions and answers related to the application of PCM1861DBT in technical solutions:

Q1: What is PCM1861DBT? A1: PCM1861DBT is a high-performance audio analog-to-digital converter (ADC) with a built-in microphone preamp. It is commonly used in various audio applications.

Q2: What is the input voltage range of PCM1861DBT? A2: The input voltage range of PCM1861DBT is typically ±0.5V, but it can be extended up to ±1V with reduced performance.

Q3: What is the sampling rate supported by PCM1861DBT? A3: PCM1861DBT supports sampling rates from 8 kHz to 192 kHz, making it suitable for a wide range of audio applications.

Q4: Can PCM1861DBT be used with both electret condenser microphones and dynamic microphones? A4: Yes, PCM1861DBT can be used with both electret condenser microphones and dynamic microphones, providing flexibility in microphone selection.

Q5: Does PCM1861DBT have built-in digital signal processing (DSP) features? A5: No, PCM1861DBT does not have built-in DSP features. It is primarily an ADC with a microphone preamp.

Q6: What is the power supply voltage required for PCM1861DBT? A6: PCM1861DBT requires a power supply voltage of +3.3V.

Q7: Can PCM1861DBT be used in battery-powered devices? A7: Yes, PCM1861DBT can be used in battery-powered devices as it operates at low power consumption.

Q8: Is PCM1861DBT compatible with I2C interface? A8: Yes, PCM1861DBT is compatible with the I2C interface, allowing for easy control and configuration.

Q9: What are the typical applications of PCM1861DBT? A9: PCM1861DBT is commonly used in applications such as audio recording devices, voice recognition systems, teleconferencing systems, and more.

Q10: Does PCM1861DBT support multiple channels? A10: Yes, PCM1861DBT supports up to 4 input channels, making it suitable for stereo or multi-channel audio recording applications.

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