DAC902E

Product Overview

Category: Digital-to-Analog Converter (DAC)

Use: The DAC902E is a high-performance digital-to-analog converter designed for audio applications. It converts digital audio signals into analog signals, allowing them to be played through speakers or headphones.

Characteristics: - High-resolution conversion: The DAC902E supports up to 24-bit resolution, ensuring accurate and detailed audio reproduction. - Low distortion: It provides low total harmonic distortion (THD) and noise, resulting in clear and high-fidelity sound output. - Wide dynamic range: The DAC902E offers a wide dynamic range, preserving the nuances of the original audio source. - Sampling rate compatibility: It supports various sampling rates, including popular rates like 44.1 kHz and 48 kHz. - Compact package: The DAC902E comes in a small form factor, making it suitable for integration into portable audio devices. - Easy integration: It can be easily interfaced with microcontrollers or audio processing units.

Package and Quantity: The DAC902E is available in a surface-mount package. Each package contains one DAC902E unit.

Specifications

• Resolution: Up to 24 bits
• Sampling Rates: 32 kHz to 192 kHz
• Total Harmonic Distortion + Noise (THD+N): <0.001%
• Signal-to-Noise Ratio (SNR): >110 dB
• Output Voltage Range: 0 to 2.5 V
• Power Supply: 3.3 V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The DAC902E has the following pin configuration:

Pin 1: GND Pin 2: VREF Pin 3: VDD Pin 4: SDATA Pin 5: SCLK Pin 6: LRCK Pin 7: MUTE Pin 8: VOUT

Functional Features

• High-quality audio conversion: The DAC902E utilizes advanced digital signal processing algorithms to ensure accurate and faithful audio reproduction.
• Low-latency operation: It provides minimal delay between the input digital signal and the output analog signal, making it suitable for real-time audio applications.
• Built-in mute function: The DAC902E includes a mute pin that can be controlled to silence the audio output when needed.
• Power-efficient design: It is designed to minimize power consumption while maintaining optimal performance.

Advantages and Disadvantages

Advantages: - High-resolution audio conversion - Low distortion and noise - Wide dynamic range - Compact size for easy integration - Versatile sampling rate compatibility

Disadvantages: - Requires external voltage reference (VREF) - Limited output voltage range

Working Principles

The DAC902E operates by receiving digital audio data through the SDATA pin. This data is synchronized with the clock signal provided through the SCLK pin. The LRCK pin determines whether the incoming data represents the left or right channel. The digital audio data is then converted into an analog signal, which is available at the VOUT pin.

Application Field Plans

The DAC902E is well-suited for various audio applications, including: 1. Portable audio players 2. Headphone amplifiers 3. Digital audio interfaces 4. Home theater systems 5. Car audio systems

Alternative Models

1. DAC901E: Similar to the DAC902E but without the mute function.
2. DAC903E: Offers higher resolution (up to 32 bits) for audiophile-grade applications.
3. DAC904E: Provides a wider output voltage range for specialized audio equipment.

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

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