ADAU1781BCPZ

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Codec
• Characteristics:
  • High-performance audio signal processing
  • Low power consumption
  • Small form factor
• Package: LFCSP (Lead Frame Chip Scale Package)
• Essence: Digital Signal Processor (DSP) with integrated audio codec functionality
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on customer requirements

Specifications

• Resolution: Up to 24-bit
• Sampling Rate: Up to 192 kHz
• Number of Channels: 2 stereo channels or 4 mono channels
• Digital Interfaces: I2S, TDM, and S/PDIF
• Analog Inputs: Differential or single-ended
• Analog Outputs: Differential or single-ended
• Power Supply: 3.3V

Detailed Pin Configuration

The ADAU1781BCPZ has a total of 32 pins. The pin configuration is as follows:

1. MCLK: Master Clock Input
2. BCLK: Bit Clock Input
3. LRCLK: Left/Right Clock Input
4. SDATA_IN: Serial Data Input
5. SDATA_OUT: Serial Data Output
6. RESET: Reset Input
7. DVDD: Digital Power Supply
8. AGND: Analog Ground
9. AVDD: Analog Power Supply
10. VCOM: Common Mode Voltage Reference
11. AINL1P: Analog Input Left Channel 1 Positive
12. AINL1N: Analog Input Left Channel 1 Negative
13. AINR1P: Analog Input Right Channel 1 Positive
14. AINR1N: Analog Input Right Channel 1 Negative
15. AINL2P: Analog Input Left Channel 2 Positive
16. AINL2N: Analog Input Left Channel 2 Negative
17. AINR2P: Analog Input Right Channel 2 Positive
18. AINR2N: Analog Input Right Channel 2 Negative
19. AOUTL1P: Analog Output Left Channel 1 Positive
20. AOUTL1N: Analog Output Left Channel 1 Negative
21. AOUTR1P: Analog Output Right Channel 1 Positive
22. AOUTR1N: Analog Output Right Channel 1 Negative
23. AOUTL2P: Analog Output Left Channel 2 Positive
24. AOUTL2N: Analog Output Left Channel 2 Negative
25. AOUTR2P: Analog Output Right Channel 2 Positive
26. AOUTR2N: Analog Output Right Channel 2 Negative
27. AGND: Analog Ground
28. DVDD: Digital Power Supply
29. VCOM: Common Mode Voltage Reference
30. SDA: I2C Serial Data
31. SCL: I2C Serial Clock
32. NC: No Connection

Functional Features

• High-quality audio signal processing with low distortion and noise
• Flexible digital interfaces for seamless integration with various audio systems
• Integrated analog inputs and outputs for easy connection to external audio devices
• On-chip digital filters and equalizers for audio enhancement
• Built-in volume control and mute functionality
• Support for multiple sampling rates and resolutions
• Low power consumption for energy-efficient operation

Advantages and Disadvantages

Advantages: - High-performance audio processing capabilities - Compact size for space-constrained applications - Versatile digital interfaces for compatibility with different audio systems - Low power consumption for extended battery life in portable devices

Disadvantages: - Limited number of channels compared to some other audio codecs - May require additional external components for certain applications

Working Principles

The ADAU1781BCPZ is a digital signal processor (DSP) with integrated audio codec functionality. It processes digital audio data received from the input interfaces, applies various algorithms and filters to enhance the audio quality, and converts the processed audio back into analog signals for output.

The DSP core inside the ADAU1781BCPZ performs complex mathematical operations on the audio data, such as filtering, equalization, and mixing. The integrated audio codec handles the conversion between digital and analog signals, providing high-quality audio output.

The device communicates with the external microcontroller or host system through the I2C interface, allowing control and configuration of various parameters and settings.

Detailed Application Field Plans

The ADAU1781BCPZ is widely used in various audio-related applications, including:

1. Consumer Electronics:

   • Portable audio players
   • Home theater systems
   • Soundbars
   • Gaming consoles

2. Automotive:

   • Car infotainment systems
   • Head units
   • Amplifiers

3. Professional Audio:

   • Mixing consoles
   • Digital audio workstations