PCM1798DBR

Product Overview

Category

PCM1798DBR belongs to the category of digital-to-analog converters (DACs).

Use

The PCM1798DBR is used to convert digital audio signals into analog audio signals. It is commonly used in audio equipment such as CD players, DVD players, and digital audio receivers.

Characteristics

• High-resolution audio conversion with a dynamic range of up to 123 dB.
• Sampling rates supported: 32 kHz to 192 kHz.
• Low distortion and noise levels for accurate audio reproduction.
• Integrated digital filters for enhanced sound quality.
• Compatible with various audio formats including PCM, DSD, and SACD.
• Operates on a single power supply voltage.

Package

PCM1798DBR is available in a small outline package (SOIC) with 28 pins.

Essence

The essence of PCM1798DBR lies in its ability to accurately convert digital audio signals into high-quality analog audio signals, ensuring faithful reproduction of the original sound.

Packaging/Quantity

PCM1798DBR is typically sold in reels containing 250 units per reel.

Specifications

• Resolution: Up to 24 bits
• Dynamic Range: 123 dB
• Sampling Rates: 32 kHz to 192 kHz
• Total Harmonic Distortion + Noise (THD+N): 0.0005%
• Power Supply Voltage: 5 V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VCOM
2. AVDD
3. DVDD
4. AGND
5. DGND
6. IREF
7. BCK
8. LRCK
9. DIN
10. MUTE
11. DEEMPH
12. OSF
13. SCLK
14. SDATA
15. VOUTR
16. VOUTL
17. AGND
18. DGND
19. AVDD
20. DVDD
21. VCOM
22. VCOM
23. VCOM
24. VCOM
25. VCOM
26. VCOM
27. VCOM
28. VCOM

Functional Features

• High-resolution audio conversion for accurate sound reproduction.
• Low distortion and noise levels ensure high-fidelity audio output.
• Integrated digital filters enhance the audio quality.
• Supports various sampling rates and audio formats.
• Single power supply operation simplifies system design.

Advantages and Disadvantages

Advantages

• High dynamic range for faithful audio reproduction.
• Low distortion and noise levels result in excellent sound quality.
• Versatile compatibility with different audio formats.
• Compact package size allows for easy integration into audio equipment.
• Single power supply operation simplifies circuit design.

Disadvantages

• Limited to a maximum resolution of 24 bits.
• Requires careful PCB layout and grounding for optimal performance.
• May require additional external components for specific applications.

Working Principles

PCM1798DBR operates by receiving digital audio data through the DIN pin. The digital audio signal is then processed using internal digital filters and converted into an analog audio signal. The analog audio signal is available at the VOUTR and VOUTL pins, ready for further amplification and playback.

Detailed Application Field Plans

PCM1798DBR finds application in various audio equipment, including: - CD players - DVD players - Digital audio receivers - Home theater systems - Professional audio equipment - Audio interfaces

Detailed and Complete Alternative Models

1. PCM1792A: Similar features and specifications, but with a higher dynamic range of 132 dB.
2. PCM1796: Lower-cost alternative with a dynamic range of 123 dB and similar performance characteristics.
3. PCM1794: Higher-end alternative with a dynamic range of 132 dB and advanced digital filtering capabilities.

These alternative models provide options based on specific requirements, budget constraints, and desired performance levels.

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