PCM1808PWRG4

Product Overview

Category: Integrated Circuit (IC)

Use: The PCM1808PWRG4 is a high-performance stereo audio analog-to-digital converter (ADC) designed for various audio applications. It converts analog audio signals into digital format, making it suitable for use in audio recording, sound reinforcement systems, musical instruments, and other audio-related devices.

Characteristics: - High-resolution conversion: The PCM1808PWRG4 supports 24-bit resolution, ensuring accurate and detailed digital representation of the analog audio signal. - Low distortion and noise: With a dynamic range of 100 dB and a signal-to-noise ratio of 98 dB, the PCM1808PWRG4 provides excellent audio quality with minimal distortion and background noise. - Sampling rate flexibility: This ADC supports sampling rates from 8 kHz to 96 kHz, allowing for versatile audio capture options. - Low power consumption: The PCM1808PWRG4 operates at low power levels, making it suitable for battery-powered devices. - Small package size: It comes in a small-sized TSSOP-20 package, which enables space-efficient integration into compact electronic designs.

Package and Quantity: The PCM1808PWRG4 is available in a TSSOP-20 package. Each reel contains 2500 units.

Specifications

• Resolution: 24 bits
• Sampling Rates: 8 kHz to 96 kHz
• Dynamic Range: 100 dB
• Signal-to-Noise Ratio: 98 dB
• Power Supply Voltage: 2.7 V to 5.5 V
• Power Consumption: 10 mW (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The PCM1808PWRG4 features a TSSOP-20 package with the following pin configuration:

1. VCC
2. GND
3. AGND
4. DVDD
5. BICK
6. LRCK
7. DIN
8. DOUT
9. MUTE
10. DEEMPH
11. OSF
12. SCLK
13. SDIN
14. SDOUT
15. FS
16. RESET
17. AVDD
18. AINL
19. AINR
20. NC

Functional Features

• High-quality audio conversion: The PCM1808PWRG4 utilizes a multi-bit delta-sigma architecture to achieve accurate and high-resolution analog-to-digital conversion.
• Flexible input options: It supports both single-ended and differential inputs, allowing for compatibility with various audio sources.
• Digital audio interface: The PCM1808PWRG4 provides a serial audio interface (I2S format) for easy integration with digital audio systems.
• Built-in digital filters: This ADC includes digital filters for oversampling and decimation, enhancing the audio signal quality.

Advantages and Disadvantages

Advantages: - High-resolution conversion ensures detailed audio capture. - Low distortion and noise contribute to excellent audio quality. - Flexible sampling rate options accommodate different audio applications. - Low power consumption is suitable for battery-powered devices. - Small package size enables space-efficient integration.

Disadvantages: - Limited pin count may restrict the number of input channels. - Requires external components for complete audio signal processing.

Working Principles

The PCM1808PWRG4 operates based on the delta-sigma modulation technique. It converts the analog audio signal into a digital bitstream by oversampling and applying noise shaping techniques. The resulting digital data can be further processed or transmitted through the integrated serial audio interface.

Application Field Plans

The PCM1808PWRG4 finds application in various audio-related devices, including: - Audio recording systems - Sound reinforcement equipment - Musical instruments - Home theater systems - Automotive audio systems

Alternative Models

• PCM1804: Similar to PCM1808PWRG4 but with a higher dynamic range of 105 dB.
• PCM1861: A multi-channel version of the PCM1808PWRG4, supporting up to 8 input channels.
• PCM9211: An ADC with integrated digital signal processing features for advanced audio applications.

These alternative models offer different specifications and features, allowing designers to choose the most suitable option based on their specific requirements.

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