PCM2903E/2K

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Codec
• Characteristics:
  • High-quality audio conversion
  • USB interface for easy connectivity
  • Low power consumption
  • Compact package size
• Package: SSOP-28
• Essence: The PCM2903E/2K is a high-performance audio codec IC that provides high-quality audio conversion and USB interface for easy connectivity in various audio applications.
• Packaging/Quantity: The PCM2903E/2K is available in SSOP-28 package and is typically sold in reels of 2500 units.

Specifications

• Audio Resolution: Up to 16-bit
• Sampling Rate: Up to 48 kHz
• Digital Interface: USB 2.0 Full Speed
• Analog Inputs: Stereo Line-In, Mono Microphone-In
• Analog Outputs: Stereo Line-Out
• Power Supply: 5V DC
• Operating Temperature: -40°C to +85°C

Pin Configuration

The PCM2903E/2K has a total of 28 pins. Here is the detailed pin configuration:

1. VDD
2. VDD
3. GND
4. GND
5. AGND
6. MICBIAS
7. MICIN
8. MICBIAS
9. MICIN
10. LINEINL
11. LINEINR
12. LINEOUTL
13. LINEOUTR
14. NC
15. NC
16. NC
17. NC
18. NC
19. NC
20. NC
21. NC
22. NC
23. NC
24. NC
25. NC
26. NC
27. USBP
28. USBN

Functional Features

• High-quality audio conversion with up to 16-bit resolution
• USB interface for easy connectivity with computers and other devices
• Low power consumption for energy-efficient operation
• Supports stereo line-in, mono microphone-in, and stereo line-out
• Integrated microphone bias for direct connection of microphones
• Compact package size for space-constrained applications

Advantages and Disadvantages

Advantages: - High-quality audio conversion - Easy connectivity via USB interface - Low power consumption - Compact package size

Disadvantages: - Limited audio resolution (up to 16-bit) - Limited sampling rate (up to 48 kHz)

Working Principles

The PCM2903E/2K operates by converting analog audio signals into digital format using its built-in ADC (Analog-to-Digital Converter). The digital audio data is then transmitted through the USB interface to a computer or other devices. On the receiving end, the digital audio data can be converted back to analog signals using a DAC (Digital-to-Analog Converter) for playback through the line-out or headphone output.

Application Field Plans

The PCM2903E/2K is widely used in various audio applications, including:

1. USB audio interfaces
2. USB microphones
3. USB sound cards
4. Portable audio devices
5. Home audio systems
6. Automotive audio systems

Alternative Models

Here are some alternative models that offer similar functionality:

1. PCM2902E/2K
2. PCM2904E/2K
3. PCM2906E/2K
4. PCM2908E/2K

These alternative models provide different features and specifications, allowing users to choose the most suitable option for their specific requirements.

In conclusion, the PCM2903E/2K is a high-performance audio codec IC that offers high-quality audio conversion and USB connectivity in a compact package. With its various features and applications, it serves as an essential component in numerous audio devices and systems.

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