PCM2702EG/2K

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital-to-Analog Converter (DAC)
• Characteristics: High-performance audio DAC with USB interface
• Package: SSOP-28
• Essence: Converts digital audio signals from a computer or other USB source into high-quality analog audio output
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel

Specifications

• Resolution: Up to 16-bit
• Sampling Rate: Supports up to 48 kHz
• Interface: USB 1.1 compatible
• Output: Stereo analog audio output
• Power Supply: 5V DC
• Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

The PCM2702EG/2K has a total of 28 pins. The pin configuration is as follows:

1. VDD: Power supply voltage
2. GND: Ground
3. VREF: Reference voltage
4. AGND: Analog ground
5. AVCC: Analog power supply voltage
6. DVCC: Digital power supply voltage
7. DOUT: Serial data output
8. BCK: Bit clock input
9. LRCK: Left/right clock input
10. MUTE: Mute control input
11. SDA: I2C serial data input/output
12. SCL: I2C serial clock input
13. XTI: Crystal oscillator input
14. XTO: Crystal oscillator output 15-28. NC: No connection

Functional Features

• High-quality audio reproduction with low distortion and noise
• USB interface allows direct connection to a computer or USB audio source
• Supports multiple sampling rates for versatile audio applications
• Built-in mute function for easy control of audio output
• I2C interface for configuration and control

Advantages and Disadvantages

Advantages: - High-performance audio DAC with USB interface - Compact package size for space-constrained applications - Versatile sampling rate support - Low distortion and noise levels

Disadvantages: - Limited resolution (up to 16-bit) - Supports USB 1.1 interface only

Working Principles

The PCM2702EG/2K is a digital-to-analog converter that utilizes a USB interface to receive digital audio signals from a computer or other USB source. It converts these digital signals into high-quality analog audio output. The device incorporates a built-in crystal oscillator for accurate timing and uses an internal reference voltage for precise signal conversion. The I2C interface allows for configuration and control of various parameters.

Detailed Application Field Plans

The PCM2702EG/2K is widely used in various audio applications, including:

1. USB audio interfaces
2. Portable audio devices
3. Home theater systems
4. Car audio systems
5. Multimedia speakers

Its compact size, high-performance audio reproduction, and USB compatibility make it suitable for both professional and consumer audio products.

Detailed and Complete Alternative Models

1. PCM2704: Similar to PCM2702EG/2K but with additional features such as headphone output and volume control.
2. PCM2706: Enhanced version with improved signal-to-noise ratio and extended sampling rate support.
3. PCM2707: USB audio DAC with integrated headphone amplifier and enhanced audio performance.

These alternative models offer different features and specifications to cater to specific application requirements.

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