PCM1796DBG4

Overview

Category: Digital-to-Analog Converter (DAC)

Use: The PCM1796DBG4 is a high-performance stereo audio DAC designed for professional audio applications. It is commonly used in audio equipment such as digital audio players, CD/DVD players, home theater systems, and studio recording equipment.

Characteristics: - High-resolution audio playback with a dynamic range of up to 123 dB - Sampling rates up to 192 kHz - Low distortion and noise levels - Differential current output architecture for improved performance - Integrated digital filters for enhanced sound quality - Flexible interface options for easy integration into various systems

Package: The PCM1796DBG4 is available in a small outline package (SOIC) with 28 pins. This package offers good thermal performance and ease of soldering.

Essence: The essence of the PCM1796DBG4 lies in its ability to convert digital audio signals into high-quality analog audio signals with exceptional accuracy and fidelity.

Packaging/Quantity: The PCM1796DBG4 is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Resolution: Up to 24 bits
• Sampling Rates: Up to 192 kHz
• Dynamic Range: 123 dB
• Total Harmonic Distortion + Noise (THD+N): 0.0005%
• Output Voltage: 2.1 Vrms (RMS)
• Power Supply Voltage: 3.3 V
• Power Consumption: 100 mW (typical)

Pin Configuration

The PCM1796DBG4 features a total of 28 pins. Here is a detailed pin configuration:

1. VCOM
2. AGND
3. DGND
4. AVCC
5. DVCC
6. MUTE
7. SCK
8. SDIN
9. LRCK
10. BCK
11. DEMP
12. DEMN
13. AOUTL
14. AOUTR
15. VREF
16. AVSS
17. DVSS
18. OSF
19. FLT
20. DZFB
21. DZF
22. DZM
23. DZD
24. DZC
25. DZB
26. DZA
27. M0
28. M1

Functional Features

• High-resolution audio playback with low distortion and noise levels
• Differential current output architecture for improved performance
• Integrated digital filters for enhanced sound quality
• Flexible interface options (I2S, left-justified, right-justified) for easy integration into various systems
• On-chip mute function for seamless audio control
• Power-down mode for reduced power consumption during idle periods

Advantages and Disadvantages

Advantages: - High-quality audio reproduction with excellent dynamic range - Low distortion and noise levels for accurate sound reproduction - Flexible interface options for easy integration into different systems - Integrated digital filters for enhanced sound quality

Disadvantages: - Requires external components for complete audio system implementation - Limited to stereo audio applications

Working Principles

The PCM1796DBG4 operates on the principle of converting digital audio signals into analog audio signals using a high-resolution DAC. It utilizes advanced digital filtering techniques and differential current output architecture to achieve high fidelity and low distortion audio playback.

The digital audio data is received through the input interface and processed by the internal digital filters. The filtered data is then converted into analog signals by the DAC section. Finally, the analog audio signals are amplified and sent to the output stage for further processing or direct connection to an audio amplifier.

Detailed Application Field Plans

The PCM1796DBG4 finds applications in various professional audio systems, including:

1. Digital Audio Players: Provides high-quality audio output for portable music players.
2. CD/DVD Players: Ensures accurate and faithful audio reproduction from optical media.
3. Home Theater Systems: Delivers immersive and high-fidelity audio experience in home entertainment setups.
4. Studio Recording Equipment: Enables precise monitoring and playback of recorded audio in professional recording studios.

Detailed and Complete Alternative Models

• PCM1792A: Similar performance and features, but with a different pin configuration.
• PCM1794A: Higher dynamic range and lower distortion levels compared to PCM1796DBG4.
• PCM1798: Lower cost alternative with slightly reduced specifications.

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

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