PCM2704DB

Product Overview

Category: Integrated Circuit (IC)

Use: The PCM2704DB is a USB audio DAC (Digital-to-Analog Converter) designed for high-quality audio playback. It converts digital audio signals from a computer or other USB host into analog audio output.

Characteristics: - Compact and lightweight design - USB bus-powered, no external power supply required - Supports various audio formats including 16-bit/32kHz to 24-bit/96kHz - Low power consumption - Plug-and-play functionality

Package: SSOP-28 (Shrink Small Outline Package)

Essence: The PCM2704DB is an essential component in audio systems that require USB connectivity and high-quality audio conversion.

Packaging/Quantity: The PCM2704DB is typically sold in reels containing 250 units per reel.

Specifications

• Resolution: Up to 24-bit
• Sampling Rate: 8kHz to 96kHz
• SNR (Signal-to-Noise Ratio): 98dB
• THD+N (Total Harmonic Distortion + Noise): 0.006%
• Output Voltage: 2Vrms (at 0dBFS)
• Power Supply: 5V (USB bus-powered)
• Operating Temperature: -40°C to +85°C

Pin Configuration

The PCM2704DB has a total of 28 pins. Here is the detailed pin configuration:

1. VDD
2. GND
3. VOUTL
4. VOUTR
5. AGND
6. AVCC
7. DVCC
8. DRC
9. DRR
10. DRL
11. DRGND
12. BCK
13. LRCK
14. SDA
15. SCL
16. NC
17. NC
18. NC
19. NC
20. NC
21. NC
22. NC
23. NC
24. NC
25. NC
26. NC
27. NC
28. NC

Functional Features

• USB audio streaming from a computer or USB host device
• On-chip USB interface with integrated transceiver
• Built-in digital interpolation filter and digital-to-analog converter
• Directly drives headphones or line-level outputs
• Supports volume control and mute functions
• Low-latency design for real-time audio applications

Advantages and Disadvantages

Advantages: - Compact size and lightweight - Easy to integrate into audio systems - USB bus-powered, eliminating the need for an external power supply - Wide range of supported audio formats - Plug-and-play functionality for easy setup

Disadvantages: - Limited number of input/output channels - May require additional components for advanced audio processing

Working Principles

The PCM2704DB operates by receiving digital audio data from a computer or USB host through its on-chip USB interface. The digital audio data is then processed by the built-in digital interpolation filter and converted into analog audio signals using the integrated digital-to-analog converter. The resulting analog audio signals can be directly fed into headphones or line-level outputs for audio playback.

Detailed Application Field Plans

The PCM2704DB finds applications in various audio-related fields, including: 1. Personal computers and laptops 2. USB audio interfaces 3. Portable audio players 4. Home theater systems 5. Automotive audio systems 6. Gaming consoles 7. Multimedia devices

Detailed and Complete Alternative Models

1. PCM2702E - Similar USB audio DAC with enhanced features and higher performance.
2. PCM2900C - USB audio codec with integrated stereo DAC and ADC.
3. PCM5102A - High-performance stereo DAC with advanced audio features.
4. PCM1794A - Premium-grade stereo DAC for audiophile applications.

These alternative models offer different specifications and features to cater to specific requirements in the audio industry.

In conclusion, the PCM2704DB is a compact and versatile USB audio DAC that provides high-quality audio conversion from digital to analog signals. Its plug-and-play functionality, low power consumption, and wide range of supported audio formats make it suitable for various audio applications.