Texas Instruments
Bild kan vara representation.
Se specifikationer för produktinformation.
PCM1742KEG4
Visa detalj Datablad

PCM1742KEG4

Product Overview

  • Category: Digital-to-Analog Converter (DAC)
  • Use: Converts digital audio signals into analog audio signals
  • Characteristics: High-resolution, low-distortion, and high-performance DAC
  • Package: Ceramic Dual-In-Line Package (CERDIP)
  • Essence: Provides accurate and high-quality audio conversion
  • Packaging/Quantity: Available in reels of 250 units

Specifications

  • Resolution: 24-bit
  • Sampling Rate: Up to 192 kHz
  • Total Harmonic Distortion + Noise: <0.002%
  • Signal-to-Noise Ratio: >110 dB
  • Dynamic Range: >110 dB
  • Operating Voltage: 5 V
  • Power Consumption: 50 mW
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The PCM1742KEG4 has a total of 20 pins arranged as follows:

  1. VREFL
  2. VCOM
  3. AGND
  4. DGND
  5. AVCC
  6. DVCC
  7. BCK
  8. LRCK
  9. DIN
  10. MUTE
  11. DEEMPH
  12. OSF
  13. SLOW
  14. I/VOUT
  15. VOUTR
  16. VOUTL
  17. NC
  18. NC
  19. NC
  20. VREFT

Functional Features

  • High-resolution audio conversion with minimal distortion
  • Supports a wide range of sampling rates for enhanced audio fidelity
  • Low power consumption for energy-efficient operation
  • Built-in mute and de-emphasis functions for added flexibility
  • On-chip oversampling filter for improved audio performance
  • Slow roll-off filter option for customized sound characteristics

Advantages and Disadvantages

Advantages: - High-resolution audio output for superior sound quality - Low distortion and noise levels ensure accurate audio reproduction - Flexible configuration options with built-in functions - Wide operating temperature range for versatile applications

Disadvantages: - Limited pin count may restrict certain advanced features - Requires external components for complete audio system integration

Working Principles

The PCM1742KEG4 operates by receiving digital audio data through the DIN pin. It then processes this data using an oversampling filter and converts it into analog audio signals. The converted analog signals are then amplified and output through the I/VOUT, VOUTR, and VOUTL pins. The device incorporates various functions such as mute, de-emphasis, and oversampling to enhance the audio quality.

Detailed Application Field Plans

The PCM1742KEG4 is widely used in various audio applications, including:

  1. Professional audio equipment
  2. High-fidelity audio systems
  3. Digital audio workstations
  4. Home theater systems
  5. Automotive audio systems

Alternative Models

  • PCM1748E
  • PCM1792A
  • PCM5102A
  • CS4398-CZZ

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

Word Count: 275 words

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av PCM1742KEG4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of PCM1742KEG4 in technical solutions:

  1. Q: What is PCM1742KEG4? A: PCM1742KEG4 is a high-performance stereo audio digital-to-analog converter (DAC) chip manufactured by Texas Instruments.

  2. Q: What are the key features of PCM1742KEG4? A: The key features of PCM1742KEG4 include a 24-bit resolution, support for sampling rates up to 192 kHz, low distortion, and a dynamic range of 112 dB.

  3. Q: What applications can PCM1742KEG4 be used for? A: PCM1742KEG4 is commonly used in audio systems, such as CD players, DVD players, home theater systems, and professional audio equipment.

  4. Q: How does PCM1742KEG4 connect to other components in an audio system? A: PCM1742KEG4 typically connects to a microcontroller or DSP through an I2S interface, and its analog output can be connected directly to an amplifier or audio circuit.

  5. Q: Can PCM1742KEG4 handle multiple audio channels? A: No, PCM1742KEG4 is a stereo DAC, meaning it can process and convert two audio channels (left and right).

  6. Q: Does PCM1742KEG4 require external components for operation? A: Yes, PCM1742KEG4 requires external components such as decoupling capacitors, voltage reference, and output filters for proper operation.

  7. Q: What is the power supply requirement for PCM1742KEG4? A: PCM1742KEG4 operates on a single power supply voltage ranging from 4.5V to 5.5V.

  8. Q: Can PCM1742KEG4 be used in battery-powered devices? A: Yes, PCM1742KEG4 can be used in battery-powered devices as long as the power supply voltage requirements are met.

  9. Q: Does PCM1742KEG4 support digital volume control? A: No, PCM1742KEG4 does not have built-in digital volume control. Volume control needs to be implemented externally.

  10. Q: Are evaluation boards or reference designs available for PCM1742KEG4? A: Yes, Texas Instruments provides evaluation boards and reference designs that can help developers quickly integrate PCM1742KEG4 into their applications.

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