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PCM1748KEG4
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PCM1748KEG4

Product Overview

  • Category: Digital-to-Analog Converter (DAC)
  • Use: Converts digital audio signals into analog audio signals
  • Characteristics:
    • High-resolution audio conversion
    • Low distortion and noise levels
    • Wide dynamic range
    • Supports various audio formats
  • Package: Ceramic Dual-In-Line Package (CERDIP)
  • Essence: Provides high-quality audio conversion for various applications
  • Packaging/Quantity: Available in reels, quantity depends on supplier

Specifications

  • Resolution: Up to 24 bits
  • Sampling Rate: Up to 192 kHz
  • Total Harmonic Distortion + Noise (THD+N): <0.002%
  • Signal-to-Noise Ratio (SNR): >100 dB
  • Dynamic Range (DR): >110 dB
  • Operating Voltage: 5V
  • Power Consumption: <100 mW

Pin Configuration

The PCM1748KEG4 has a total of 28 pins. Here is the detailed pin configuration:

  1. VCC: Power supply voltage
  2. GND: Ground
  3. SDIN: Serial data input
  4. SCLK: Serial clock input
  5. LRCK: Left/right channel select
  6. MUTE: Mute control
  7. DEEMPH: De-emphasis control
  8. VOUTL: Analog output left channel
  9. VOUTR: Analog output right channel
  10. AGND: Analog ground
  11. AVCC: Analog power supply voltage 12-28. Reserved/Not connected

Functional Features

  • High-resolution audio conversion with low distortion and noise levels
  • Supports various audio formats including PCM, DSD, and MP3
  • Built-in de-emphasis filter for improved audio quality
  • Mute control for convenient audio playback control
  • Wide dynamic range for accurate reproduction of audio signals

Advantages and Disadvantages

Advantages: - High-resolution audio conversion for superior sound quality - Low distortion and noise levels ensure accurate audio reproduction - Wide dynamic range captures subtle details in audio signals - Supports various audio formats, providing flexibility in applications

Disadvantages: - Requires external components for complete audio system integration - Limited pin configuration options may restrict certain applications - Higher power consumption compared to some other DACs

Working Principles

The PCM1748KEG4 operates by receiving digital audio data through the SDIN pin. The serial clock input (SCLK) synchronizes the data transfer. The left/right channel select (LRCK) determines which channel is being processed. The digital audio data is then converted into analog signals using high-quality internal circuitry. The resulting analog audio signals are available at the VOUTL and VOUTR pins.

Detailed Application Field Plans

The PCM1748KEG4 is widely used in various audio-related applications, including:

  1. Professional audio equipment
  2. Hi-Fi audio systems
  3. Digital audio workstations
  4. Home theater systems
  5. Automotive audio systems
  6. Musical instruments
  7. Audio recording and mixing consoles

Detailed and Complete Alternative Models

  1. PCM1794A: Similar performance with enhanced features
  2. PCM5102A: Lower power consumption with comparable audio quality
  3. CS4398: Alternative DAC with different characteristics
  4. AK4490EQ: High-end DAC with advanced features

These alternative models provide similar functionality and can be considered based on specific requirements and preferences.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av PCM1748KEG4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of PCM1748KEG4 in technical solutions:

  1. Q: What is PCM1748KEG4? A: PCM1748KEG4 is a high-performance, 24-bit digital-to-analog converter (DAC) manufactured by Texas Instruments.

  2. Q: What are the key features of PCM1748KEG4? A: The key features of PCM1748KEG4 include a dynamic range of 112 dB, low distortion, support for various audio formats, and a wide power supply range.

  3. Q: What applications can PCM1748KEG4 be used for? A: PCM1748KEG4 is commonly used in audio systems, professional audio equipment, multimedia devices, home theater systems, and automotive audio systems.

  4. Q: How does PCM1748KEG4 connect to other components in a system? A: PCM1748KEG4 typically connects to a microcontroller or digital signal processor (DSP) through an I2C or SPI interface. The analog output is then connected to an amplifier or directly to speakers.

  5. Q: Can PCM1748KEG4 handle multiple audio channels? A: Yes, PCM1748KEG4 supports stereo audio output. For multi-channel applications, multiple PCM1748KEG4 DACs can be used together.

  6. Q: What is the sampling rate supported by PCM1748KEG4? A: PCM1748KEG4 supports sampling rates up to 192 kHz, making it suitable for high-quality audio playback.

  7. Q: Does PCM1748KEG4 have built-in volume control? A: No, PCM1748KEG4 does not have built-in volume control. Volume control can be implemented externally using a digital potentiometer or an amplifier with volume control.

  8. Q: Can PCM1748KEG4 operate on a single power supply? A: Yes, PCM1748KEG4 can operate on a single power supply ranging from 2.7V to 5.5V, making it suitable for battery-powered applications.

  9. Q: What is the output voltage range of PCM1748KEG4? A: The output voltage range of PCM1748KEG4 is typically 0V to Vref, where Vref is the reference voltage supplied to the DAC.

  10. Q: Are evaluation boards available for PCM1748KEG4? A: Yes, Texas Instruments provides evaluation boards and software tools to help developers evaluate and integrate PCM1748KEG4 into their designs.

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