PCM2903E/2KG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Codec
• Characteristics: High-quality audio conversion, USB interface
• Package: 20-TSSOP
• Essence: PCM2903E/2KG4 is a high-performance audio codec IC that provides high-quality audio conversion and supports USB interface for easy integration into various audio applications.
• Packaging/Quantity: Available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Resolution: 16-bit
• Sampling Rate: Up to 48 kHz
• Digital Interface: USB 1.1
• Analog Inputs: Stereo Line-In, Mono Microphone-In
• Analog Outputs: Stereo Line-Out
• Power Supply: 5V

Pin Configuration

The PCM2903E/2KG4 IC has the following pin configuration:

1. VDD - Power supply voltage
2. GND - Ground
3. MICBIAS - Bias voltage for microphone input
4. MICIN - Microphone input
5. LINEINL - Left channel line input
6. LINEINR - Right channel line input
7. AGND - Analog ground
8. LINEOUTL - Left channel line output
9. LINEOUTR - Right channel line output
10. AVDD - Analog power supply voltage
11. DVDD - Digital power supply voltage
12. USBP - USB positive data line
13. USBN - USB negative data line
14. SDA - I2C serial data input/output
15. SCL - I2C serial clock input
16. XTAL2 - Crystal oscillator output
17. XTAL1 - Crystal oscillator input
18. NC - No connection
19. NC - No connection
20. NC - No connection

Functional Features

• High-quality audio conversion with 16-bit resolution and up to 48 kHz sampling rate.
• USB interface for easy integration with various audio devices.
• Supports stereo line input, mono microphone input, and stereo line output.
• Built-in bias voltage for microphone input (MICBIAS).
• Low power consumption.

Advantages and Disadvantages

Advantages: - High-quality audio conversion for accurate sound reproduction. - Easy integration with USB interface. - Versatile input and output options. - Low power consumption for energy efficiency.

Disadvantages: - Limited to 16-bit resolution. - USB 1.1 interface may not support high-speed data transfer.

Working Principles

The PCM2903E/2KG4 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 via the USB interface to a host device such as a computer or audio system. On the receiving end, the digital audio data is converted back to analog format using the DAC (Digital-to-Analog Converter) within the PCM2903E/2KG4, allowing it to be played through speakers or headphones.

Detailed Application Field Plans

The PCM2903E/2KG4 is widely used in various audio applications, including:

1. USB audio interfaces
2. USB microphones
3. USB speakers
4. USB sound cards
5. USB recording devices

Its compact size, low power consumption, and high-quality audio conversion make it suitable for portable audio devices and professional audio equipment.

Alternative Models

Here are some alternative models that offer similar functionality:

1. PCM2902E/2K - Similar to PCM2903E/2KG4 but without microphone input.
2. PCM2904E/2K - Similar to PCM2903E/2KG4 but with stereo line output only.
3. PCM2906E/2K - Similar to PCM2903E/2KG4 but with additional digital audio processing features.

These alternative models provide options for different audio applications and requirements.

Word count: 446 words