Read the digital audio crystal oscillator selection guide in one article

In the world of modern digital audio, detail and clarity have become indispensable key factors. Whether in the delicate production process of music creation or in the smooth playback process of music appreciation, a high-performance low-phase noise clock oscillator is needed as a solid frequency benchmark. The existence of this core component ensures that audio data can be transmitted and decoded accurately, bringing a pure and flawless auditory feast to listeners.

Digital audio, as a form of audio based on digital signals, is crucial to its accuracy and stability. It is precisely because of the performance of the low phase noise clock oscillator that digital audio can maintain a high degree of fidelity during the transmission process and restore the original delicate emotions and rich layers of music. Whether it is a melodious melody or an exciting rhythm, it can be perfectly presented in digital audio, making the listener feel like they are in the world of music.

The function of the clock oscillator is to generate a reference frequency, which will be used as the basis for data transmission. If this reference frequency is unstable or noisy, distortion and noise will occur when playing music. The low phase noise clock oscillator can provide high-quality clock signals, thereby ensuring accurate transmission and correct decoding of digital audio data.

The application selection plan of digital audio crystal oscillator involves many key factors to ensure the accuracy and stability of audio processing. The following is a detailed selection plan:

Crystal oscillator selection requirements for digital audio:

1. Frequency range selection:The frequency range of the crystal should meet the specific needs of the digital audio system. Common crystal oscillator frequencies include 2896MHZ, 12.288MHZ, 22.5792MHZ, 24.576MHZ, 45.1584MHZ, 49.152MHZ, etc. These frequencies can meet the sampling and processing needs of different audio applications.

2. Phase noise and jitter performance: Phase noise and jitter performance are critical to audio quality. Choosing a crystal oscillator with low phase noise and high stability can ensure accurate reproduction of audio signals and reduce distortion and noise.

3. highAccuracy and Stability:High-precision and low-jitter crystal oscillators can provide clearer and more stable audio effects. Choosing a crystal oscillator with high precision and excellent stability helps ensure accurate transmission and processing of audio signals.

4. Package and pin types:Select the appropriate package size and pin type based on actual application requirements. For example, for space-constrained applications, you can choose a small package; for applications that require high reliability, you can choose a package with better thermal performance.

5. Environmental and reliability considerations:Choose a crystal oscillator that can operate stably under different environmental conditions and has sufficient heat and cold resistance to ensure the long-term stable operation of the audio system.

YXClaunchedActivecrystal oscillatorYSO110TR seriesand programmable spread spectrum crystal oscillatorYSO171PS series，belowtypicalparameters in digital audiomiddleApplication features:

Wide voltage active crystal oscillator

Frequency: 1M-125MHZ, wide frequency range, meeting the needs of digital audio frequency points

High precision, total frequency difference ±30PPM (-40~+80℃)

Startup time as low as 3ms

Compatible with multiple voltages (1.8-3.3V)

The minimum volume can be 1612, meeting the miniaturization packaging requirements of digital audio.

Resistant to shock and vibration, high reliability

YXC programmable spread spectrum crystal oscillator-YSO171PS series, its product parameters and advantages are as follows:

Fast delivery: 1 week to produce samples, quickly respond to customers' various design needs;

Frequency point customization: Using PLL technology, any frequency within the frequency range can be customized, with wider selectivity;

Multiple choices of spread spectrum width: providing ±0.25%, ±0.5%, ±0.1%, ±2% and other options;

Low power consumption: power consumption as low as 3.4mA;

High temperature resistance: industrial grade temperature -40~﹢85℃ (can support -40~﹢125℃ wide temperature);

Anti-interference: Effectively reduce electromagnetic radiation power and reduce the impact of EMI electromagnetic interference.

YXC Yangxing Technology, as a leader in the crystal oscillator industry, has more than 30 years of professional experience. We are committed to providing customers with ultra-low phase noise and ultra-high stability clock sources required in various application scenarios to ensure accurate and reliable time synchronization and data transmission in various application scenarios.