PCM1791ADB

Product Overview

Category: Digital-to-Analog Converter (DAC)

Use: The PCM1791ADB is a high-performance stereo audio DAC designed for professional audio applications. It converts digital audio signals into analog signals with exceptional accuracy and fidelity.

Characteristics: - High-resolution audio playback - Low distortion and noise levels - Wide dynamic range - Support for various audio formats - Flexible interface options

Package: The PCM1791ADB comes in a small outline package (SOP) with 28 pins, making it suitable for compact audio equipment designs.

Essence: The essence of the PCM1791ADB lies in its ability to faithfully reproduce digital audio signals with high precision, ensuring an immersive and accurate listening experience.

Packaging/Quantity: The PCM1791ADB is typically sold in reels containing 250 units per reel.

Specifications

• Resolution: Up to 24-bit
• Sampling Rate: Up to 192 kHz
• Total Harmonic Distortion + Noise (THD+N): <0.001%
• Signal-to-Noise Ratio (SNR): >120 dB
• Dynamic Range (DNR): >120 dB
• Power Supply Voltage: 3.3 V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The PCM1791ADB features the following pin configuration:

1. VCOM
2. AGND
3. DGND
4. AVDD
5. DVDD
6. BCK
7. LRCK
8. DATA
9. MUTE
10. DEEMPH
11. OSF
12. I2CSEL
13. SDA
14. SCL
15. RESET
16. VOUTL
17. VOUTR
18. AVSS
19. DVSS
20. VREF
21. AVDD
22. DVDD
23. AGND
24. DGND
25. VCOM
26. VCOM
27. VCOM
28. VCOM

Functional Features

• High-resolution audio playback: The PCM1791ADB supports up to 24-bit resolution, allowing for accurate reproduction of intricate audio details.
• Low distortion and noise levels: With a THD+N of less than 0.001%, the DAC ensures minimal distortion and noise interference in the audio signal.
• Wide dynamic range: The device offers a dynamic range of over 120 dB, enabling the faithful representation of both soft and loud audio passages.
• Support for various audio formats: The PCM1791ADB is compatible with a wide range of audio formats, including PCM, DSD, and DXD.
• Flexible interface options: It provides multiple interface options such as I2S, left-justified, right-justified, and TDM, ensuring compatibility with different audio systems.

Advantages and Disadvantages

Advantages: - High audio fidelity - Versatile interface options - Wide dynamic range - Low distortion and noise levels

Disadvantages: - Relatively high power consumption - Requires external components for complete audio system integration

Working Principles

The PCM1791ADB operates by receiving digital audio data through its input pins and converting it into analog signals using advanced digital-to-analog conversion techniques. The converted analog signals are then amplified and sent to the output pins for further processing or direct connection to audio output devices.

Detailed Application Field Plans

The PCM1791ADB finds applications in various professional audio fields, including: - Studio recording and mixing consoles - High-end audio equipment - Home theater systems - Musical instruments - Automotive audio systems

Alternative Models

For those seeking alternative models with similar capabilities, the following options are available: - PCM1792A - PCM1794A - PCM1795 - PCM1796

These models offer comparable performance and features, providing flexibility in choosing the most suitable DAC for specific audio applications.

In conclusion, the PCM1791ADB is a high-performance stereo audio DAC that excels in accuracy, fidelity, and versatility. With its wide dynamic range, low distortion levels, and support for various audio formats, it is an excellent choice for professional audio applications across different fields.