PCM1801U/2KG4

Product Overview

Category

PCM1801U/2KG4 belongs to the category of analog-to-digital converters (ADCs).

Use

The PCM1801U/2KG4 is used to convert analog audio signals into digital format for further processing or storage.

Characteristics

• High-resolution: The PCM1801U/2KG4 offers a resolution of up to 24 bits, ensuring accurate conversion of analog signals.
• Low distortion: It provides low total harmonic distortion (THD) and noise, resulting in high-quality digital audio output.
• Wide dynamic range: With a wide dynamic range, the PCM1801U/2KG4 can capture both soft and loud audio signals accurately.
• Sampling rate: It supports sampling rates up to 192 kHz, allowing for high-fidelity audio conversion.
• Small package size: The PCM1801U/2KG4 comes in a compact package, making it suitable for space-constrained applications.
• Packaging/Quantity: The PCM1801U/2KG4 is available in a surface-mount package and is typically sold in reels of 2500 units.

Specifications

• Resolution: Up to 24 bits
• Sampling Rate: Up to 192 kHz
• Total Harmonic Distortion + Noise (THD+N): <0.001%
• Signal-to-Noise Ratio (SNR): >100 dB
• Power Supply Voltage: 3.3 V
• Package Type: QFN-20

Pin Configuration

The PCM1801U/2KG4 has a total of 20 pins. Here is the detailed pin configuration:

Pin 1: VREFP Pin 2: VINL Pin 3: VINR Pin 4: AGND Pin 5: VCOM Pin 6: DVDD Pin 7: DGND Pin 8: BCLK Pin 9: LRCK Pin 10: SDIN Pin 11: MUTE Pin 12: VREFN Pin 13: VOUTL Pin 14: VOUTR Pin 15: AVDD Pin 16: AGND Pin 17: DVDD Pin 18: DGND Pin 19: NC Pin 20: NC

Functional Features

• High-resolution audio conversion: The PCM1801U/2KG4 provides accurate and high-resolution conversion of analog audio signals.
• Low distortion and noise: It ensures minimal distortion and noise, resulting in clear and high-quality digital audio output.
• Flexible sampling rates: The PCM1801U/2KG4 supports a wide range of sampling rates, allowing for compatibility with various audio applications.
• Power-efficient operation: It operates at low power consumption, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• High-resolution audio conversion
• Low distortion and noise
• Wide dynamic range
• Compact package size

Disadvantages

• Limited pin configuration options
• Requires external components for complete audio processing

Working Principles

The PCM1801U/2KG4 utilizes a delta-sigma modulation technique to convert analog audio signals into digital format. It employs oversampling and noise shaping to achieve high-resolution and low-distortion conversion. The analog input signal is sampled at a high frequency and then processed through a series of filters and converters to produce the digital output.

Detailed Application Field Plans

The PCM1801U/2KG4 finds applications in various audio-related fields, including: - Professional audio recording equipment - Consumer audio devices - Musical instruments - Automotive audio systems - Home theater systems

Detailed and Complete Alternative Models

• PCM1801U/2K: Similar to PCM1801U/2KG4 but without the reel packaging option.
• PCM1801U/2KDB: Evaluation board for PCM1801U/2KG4, providing a convenient platform for testing and development.

In conclusion, the PCM1801U/2KG4 is a high-resolution analog-to-digital converter that offers accurate conversion of analog audio signals into digital format. With its low distortion, wide dynamic range, and flexible sampling rates, it finds applications in various audio-related fields. However, it has limited pin configuration options and requires external components for complete audio processing.