PCM2704DBG4

Product Overview

• Category: Integrated Circuit
• Use: Digital-to-Analog Converter (DAC)
• Characteristics:
  • High-quality audio performance
  • Low power consumption
  • USB bus-powered operation
  • Small package size
• Package: SSOP-28
• Essence: PCM2704DBG4 is a high-performance DAC designed for audio applications, providing excellent audio quality and low power consumption in a compact form factor.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Resolution: Up to 16-bit
• Sampling Rate: Up to 48 kHz
• Output Voltage: 2.1 Vrms (typical)
• Power Supply: 5V (USB bus-powered)
• Total Harmonic Distortion + Noise (THD+N): 0.006% (typical)
• Signal-to-Noise Ratio (SNR): 98 dB (typical)
• Dynamic Range (DR): 98 dB (typical)

Pin Configuration

The PCM2704DBG4 has a total of 28 pins. The pin configuration is as follows:

1. VDD
2. GND
3. VBUS
4. D+ (USB Data+)
5. D- (USB Data-)
6. SDA (I2C Serial Data)
7. SCL (I2C Serial Clock)
8. MCLK (Master Clock)
9. BCK (Bit Clock)
10. LRCK (Left/Right Clock)
11. SDOUT (Serial Data Output) 12-19. NC (No Connection)
12. AGND (Analog Ground)
13. AVCC (Analog Power Supply)
14. VREF (Reference Voltage)
15. VOUTL (Left Channel Analog Output)
16. VOUTR (Right Channel Analog Output) 25-28. NC (No Connection)

Functional Features

• USB Audio Class 1.0 and 2.0 compliant
• On-chip USB interface with integrated transceiver
• Built-in digital audio processing capabilities
• Supports various audio formats (e.g., PCM, DSD)
• Directly drives headphones or line-level outputs
• Integrated volume control functionality
• Low-latency audio streaming

Advantages and Disadvantages

Advantages: - High-quality audio performance - Low power consumption - Compact package size - Easy integration with USB-enabled devices - Versatile audio format support

Disadvantages: - Limited resolution and sampling rate compared to higher-end DACs - May require additional external components for certain applications - Not suitable for professional studio-grade audio production

Working Principles

The PCM2704DBG4 operates by receiving digital audio data from a USB source and converting it into analog signals. It utilizes an on-chip USB interface to communicate with the host device and performs digital audio processing to enhance the audio quality. The converted analog signals are then amplified and output through the left and right channel outputs.

Detailed Application Field Plans

The PCM2704DBG4 is commonly used in various audio-related applications, including:

1. USB DACs (Digital-to-Analog Converters)
2. USB audio interfaces
3. Portable audio players
4. Headphone amplifiers
5. Multimedia speakers
6. Home theater systems
7. Automotive audio systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the PCM2704DBG4 include:

1. PCM2705: Similar to PCM2704DBG4 but with additional features like S/PDIF output.
2. PCM2706: Enhanced version with improved audio performance and additional features.
3. PCM2707: USB DAC with integrated headphone amplifier.
4. PCM2708: Higher-resolution DAC with support for 24-bit audio.

These alternative models provide options for different requirements and can be considered based on specific application needs.

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