PCM1702U/2K

Product Overview

• Category: Digital-to-Analog Converter (DAC)
• Use: Converts digital audio signals into analog audio signals
• Characteristics: High-resolution, high-performance DAC
• Package: Integrated Circuit (IC)
• Essence: Provides accurate and high-quality audio conversion
• Packaging/Quantity: Available in various packaging options; quantity depends on the supplier

Specifications

• Resolution: 20-bit
• Sampling Rate: Up to 96 kHz
• Signal-to-Noise Ratio: > 120 dB
• Total Harmonic Distortion: < 0.001%
• Output Voltage: 2.5 Vrms
• Power Supply: +5V

Pin Configuration

The PCM1702U/2K has a total of 20 pins. The pin configuration is as follows:

1. VOUTL - Left Channel Analog Output
2. VCOM - Common Voltage Reference
3. VOUTR - Right Channel Analog Output
4. AGND - Analog Ground
5. DGND - Digital Ground
6. BCK - Bit Clock Input
7. DATA - Serial Data Input
8. LRCK - Word Clock Input
9. MUTE - Mute Control Input
10. OSF - Oversampling Filter Selection
11. DEM - De-emphasis Control Input
12. AVCC - Analog Power Supply
13. DVCC - Digital Power Supply
14. VREF - Reference Voltage Output
15. VREFB - Reference Voltage Output (Inverted)
16. VREFC - Reference Voltage Output (Center)
17. VREFD - Reference Voltage Output (Center, Inverted)
18. VREFR - Reference Voltage Output (Right)
19. VREFL - Reference Voltage Output (Left)
20. VCC - Power Supply

Functional Features

• High-resolution audio conversion
• Low noise and distortion levels
• Wide dynamic range
• Supports various sampling rates
• Built-in oversampling filter
• De-emphasis control for accurate playback of pre-emphasized audio

Advantages and Disadvantages

Advantages: - High-quality audio output - Accurate and precise conversion - Low noise and distortion levels - Versatile and compatible with different audio systems

Disadvantages: - Requires external components for complete audio system integration - Limited to 20-bit resolution

Working Principles

The PCM1702U/2K operates by receiving digital audio data and converting it into analog signals. It utilizes a combination of oversampling, filtering, and voltage references to achieve accurate and high-quality audio conversion. The digital input is processed through an internal oversampling filter, which reduces noise and improves the signal quality. The converted analog signals are then amplified and sent to the respective left and right channels for audio playback.

Application Field Plans

The PCM1702U/2K is commonly used in professional audio equipment, consumer audio devices, and high-end audio systems. Some specific application fields include:

1. Studio Recording Equipment
2. Digital Audio Workstations (DAWs)
3. Home Theater Systems
4. Hi-Fi Audio Systems
5. Musical Instruments
6. Car Audio Systems

Alternative Models

• PCM1792A
• PCM1794A
• PCM1798
• PCM1796
• PCM1795

These alternative models offer similar functionality and performance to the PCM1702U/2K and can be considered as alternatives based on specific requirements and preferences.

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