PCM1808PWR

Overview

PCM1808PWR is a product belonging to the category of analog-to-digital converters (ADCs). It is commonly used in various audio applications where high-quality digital conversion is required. The PCM1808PWR offers several characteristics that make it suitable for professional audio recording and playback systems. It comes in a small package, making it easy to integrate into compact designs. The essence of PCM1808PWR lies in its ability to convert analog audio signals into digital format with exceptional accuracy and fidelity. Each package contains one unit of PCM1808PWR.

Specifications

• Resolution: 24-bit
• Sampling Rate: Up to 96 kHz
• Signal-to-Noise Ratio (SNR): 105 dB
• Total Harmonic Distortion (THD): -93 dB
• Power Supply Voltage: 3.0 V to 3.6 V
• Package Type: TSSOP-20

Pin Configuration

The PCM1808PWR features a TSSOP-20 package with the following pin configuration:

1. VINL: Left Channel Analog Input
2. VINR: Right Channel Analog Input
3. AGND: Analog Ground
4. VREF: Reference Voltage Output
5. DVDD: Digital Power Supply
6. DGND: Digital Ground
7. BICK: Bit Clock Input
8. LRCK: Word Clock Input
9. DIN: Serial Data Input
10. MCLK: Master Clock Input
11. DOUT: Serial Data Output
12. SDOUT: Serial Data Output (Left-Justified)
13. FS: Frame Sync Output
14. SDOFF: Serial Data Output Format Select
15. DEEMPH: De-emphasis Control
16. MUTEL: Left Channel Digital Mute Control
17. MUTER: Right Channel Digital Mute Control
18. VCOM: Common Voltage Output
19. AVDD: Analog Power Supply
20. DVDD: Digital Power Supply

Functional Features

The PCM1808PWR offers the following functional features:

• High-resolution audio conversion with 24-bit resolution
• Wide sampling rate range of up to 96 kHz
• Low distortion and high signal-to-noise ratio for accurate audio reproduction
• Flexible digital output formats (left-justified or I2S)
• Built-in de-emphasis control for handling pre-emphasized audio signals
• Individual channel mute control for seamless audio playback control

Advantages and Disadvantages

Advantages: - High-resolution audio conversion ensures excellent sound quality. - Wide sampling rate range allows compatibility with various audio sources. - Small package size enables easy integration into space-constrained designs.

Disadvantages: - Limited to stereo audio input, not suitable for multi-channel applications. - Requires external components for complete audio processing.

Working Principles

The PCM1808PWR operates on the principle of delta-sigma modulation. It converts analog audio signals into a digital bitstream by oversampling the input signal and applying noise shaping techniques. The resulting digital data can then be further processed or stored for playback.

Application Field Plans

The PCM1808PWR finds extensive application in professional audio recording and playback systems, including:

1. Audio interfaces for computers and digital audio workstations
2. Portable audio recorders and players
3. Home theater systems
4. Musical instruments and effects processors
5. Automotive audio systems

Alternative Models

For alternative options, consider the following ADCs:

1. PCM1804: Similar performance to PCM1808PWR but with a different pin configuration.
2. ADS1298: Multi-channel ADC suitable for biomedical applications.
3. MAX11131: High-speed ADC with integrated multiplexer.

These alternative models offer different features and specifications, providing flexibility for various application requirements.

In conclusion, the PCM1808PWR is a high-quality analog-to-digital converter designed for professional audio applications. With its exceptional resolution, wide sampling rate range, and compact package, it offers reliable and accurate audio conversion.