Cirrus Logic Inc.
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WM8742GEDS/V
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WM8742GEDS/V

Product Overview

  • Category: Audio DAC (Digital-to-Analog Converter)
  • Use: Converts digital audio signals into analog audio signals for high-quality sound reproduction
  • Characteristics: High-resolution audio playback, low distortion, wide dynamic range
  • Package: Small outline package (SOP), 28 pins
  • Essence: Provides accurate and faithful conversion of digital audio signals to analog form
  • Packaging/Quantity: Available in tape and reel packaging, quantity per reel: 2500 units

Specifications

  • Resolution: Up to 24-bit
  • Sampling Rate: Supports sampling rates up to 192 kHz
  • Dynamic Range: >120 dB
  • Total Harmonic Distortion + Noise: <0.001%
  • Output Voltage: 2 Vrms (RMS)
  • Power Supply: 3.3 V
  • Operating Temperature: -40°C to +85°C

Pin Configuration (Detailed)

  1. VDD (Power supply)
  2. GND (Ground)
  3. SDATA (Serial data input)
  4. SCLK (Serial clock input)
  5. LRCK (Left/right channel clock input)
  6. MUTE (Mute control input)
  7. BICK (Bit clock input)
  8. DEMP (De-emphasis control input)
  9. VREF (Reference voltage output)
  10. AVCC (Analog power supply)
  11. DVCC (Digital power supply)
  12. AGND (Analog ground)
  13. DGND (Digital ground)
  14. OUTL (Analog audio output - left channel)
  15. OUTR (Analog audio output - right channel) 16-28. NC (No connection)

Functional Features

  • High-resolution audio playback with support for up to 24-bit resolution
  • Low distortion and wide dynamic range for accurate sound reproduction
  • Built-in de-emphasis control for improved audio quality
  • Mute control for convenient audio playback management

Advantages and Disadvantages

Advantages: - High-quality audio reproduction with low distortion - Wide dynamic range for detailed sound representation - Compact package size for easy integration into audio devices - Supports high sampling rates for enhanced audio fidelity

Disadvantages: - Requires external power supply for operation - Limited pin configuration options for customization - May require additional components for complete audio system implementation

Working Principles

The WM8742GEDS/V operates by receiving digital audio signals through the SDATA, SCLK, and LRCK inputs. It then converts these digital signals into analog form using a high-resolution DAC. The converted analog audio signals are then output through the OUTL and OUTR pins. The device also includes features such as de-emphasis control and mute functionality to enhance audio quality and user experience.

Detailed Application Field Plans

The WM8742GEDS/V is commonly used in various audio applications, including:

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

Detailed and Complete Alternative Models

  1. WM8741GEDS/V
  2. PCM1794ADBR
  3. AK4490EQ
  4. CS4398-CZZ
  5. ES9028PRO

These alternative models offer similar functionalities and can be considered as alternatives to the WM8742GEDS/V depending on specific requirements and design considerations.

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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem WM8742GEDS/V w rozwiązaniach technicznych

  1. What is the maximum sampling rate supported by WM8742GEDS/V?
    - The maximum sampling rate supported by WM8742GEDS/V is 192 kHz.

  2. Can WM8742GEDS/V be used in a digital-to-analog converter (DAC) application?
    - Yes, WM8742GEDS/V is designed for use in high-quality DAC applications.

  3. What is the typical power supply voltage range for WM8742GEDS/V?
    - The typical power supply voltage range for WM8742GEDS/V is 5V to 12V.

  4. Does WM8742GEDS/V support multiple input formats?
    - Yes, WM8742GEDS/V supports multiple input formats including I2S, left-justified, and right-justified.

  5. Is WM8742GEDS/V suitable for audio amplifier integration?
    - Yes, WM8742GEDS/V can be integrated with audio amplifiers to achieve high-fidelity sound reproduction.

  6. What are the key features of WM8742GEDS/V that make it suitable for professional audio equipment?
    - WM8742GEDS/V offers low distortion, high signal-to-noise ratio, and excellent dynamic range, making it ideal for professional audio equipment.

  7. Can WM8742GEDS/V be used in portable audio devices?
    - Yes, WM8742GEDS/V's low power consumption and compact footprint make it suitable for use in portable audio devices.

  8. Are there any specific PCB layout considerations for integrating WM8742GEDS/V?
    - Proper grounding, signal routing, and decoupling capacitor placement are important considerations for optimal performance when integrating WM8742GEDS/V on a PCB.

  9. Does WM8742GEDS/V require external components for operation?
    - WM8742GEDS/V requires external components such as resistors, capacitors, and a clock source for proper operation.

  10. Can WM8742GEDS/V be used in automotive audio systems?
    - Yes, WM8742GEDS/V's robust design and wide operating temperature range make it suitable for automotive audio systems.