PCM2705CDB

Product Overview

Category: Integrated Circuit (IC)

Use: The PCM2705CDB is a digital-to-analog converter (DAC) and USB interface controller. It is designed to convert digital audio signals from a computer or other digital sources into high-quality analog audio output.

Characteristics: - High-performance DAC with 16-bit resolution - Supports sampling rates up to 48 kHz - USB 1.1 compliant interface - Low power consumption - Compact package for easy integration

Package: The PCM2705CDB is available in a small outline package (SOIC) with 28 pins, making it suitable for surface mount applications.

Essence: The essence of the PCM2705CDB lies in its ability to provide a convenient and cost-effective solution for integrating USB audio functionality into various electronic devices.

Packaging/Quantity: The PCM2705CDB is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Resolution: 16-bit
• Sampling Rates: Up to 48 kHz
• Interface: USB 1.1
• Power Supply: 5V
• Total Harmonic Distortion + Noise (THD+N): <0.01%
• Signal-to-Noise Ratio (SNR): >90 dB
• Dynamic Range: >90 dB
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The PCM2705CDB has a total of 28 pins. Below is the detailed pin configuration:

Pin 1: VDD Pin 2: GND Pin 3: SDA Pin 4: SCL Pin 5: LRCK Pin 6: BCK Pin 7: DOUT Pin 8: DIN Pin 9: VBUS ...

Functional Features

• USB audio streaming: The PCM2705CDB enables seamless audio streaming from a computer or other digital sources via the USB interface.
• High-quality audio output: With its high-performance DAC, the PCM2705CDB ensures accurate and faithful reproduction of digital audio signals.
• Low power consumption: The device is designed to operate efficiently with minimal power consumption, making it suitable for portable and battery-powered applications.
• Easy integration: The compact package and standardized interface facilitate easy integration into various electronic devices.

Advantages and Disadvantages

Advantages: - Cost-effective solution for adding USB audio functionality - High-quality audio output - Low power consumption - Compact package for easy integration

Disadvantages: - Limited sampling rates compared to higher-end DACs - Limited resolution (16-bit) compared to higher-end DACs

Working Principles

The PCM2705CDB works by receiving digital audio data through the USB interface. It then converts the digital data into analog audio signals using its internal DAC. The converted analog audio signals are then amplified and sent to the audio output.

Application Field Plans

The PCM2705CDB finds applications in various electronic devices that require USB audio functionality, such as: - USB audio interfaces - Portable music players - USB-powered speakers - Home theater systems - Car audio systems

Alternative Models

Below are some alternative models that offer similar functionality to the PCM2705CDB:

1. PCM2704: Similar to PCM2705CDB but with a lower sampling rate (up to 32 kHz).
2. PCM2706: Similar to PCM2705CDB but with additional features like headphone amplifier and S/PDIF output.
3. PCM2900: USB audio codec with integrated ADC and DAC.

These alternative models provide flexibility in choosing the most suitable solution based on specific requirements.

In conclusion, the PCM2705CDB is a versatile and cost-effective digital-to-analog converter and USB interface controller. With its high-quality audio output, low power consumption, and easy integration, it serves as an ideal choice for various electronic devices requiring USB audio functionality.

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