In modern digital audio, precision and clarity are paramount. Whether in music production or playback, a high-performance, low-phase-noise clock oscillator is essential as a frequency reference to ensure accurate transmission and decoding of audio data.
Digital audio, which stores and plays audio in digital signal form, converts analog signals into digital for precise recording and transmission. The clock oscillator generates a reference frequency that serves as the baseline for data transmission. If this frequency is unstable or noisy, it can cause distortion and noise during playback. Low-phase-noise clock oscillators provide high-quality clock signals, ensuring accurate audio data transmission and decoding.
With advancing technology, digital audio is poised for breakthroughs. Leveraging the latest clock oscillator manufacturing techniques, SCTF Xingtong Timing has developed a new series of low-phase-noise clock oscillators, available in various package sizes and ready for mass production. These oscillators offer high precision, stability, low phase noise, and low jitter, driving advancements in digital audio and delivering an unparalleled listening experience for music enthusiasts.
Common Crystal Frequencies for Digital Audio
11.2896MHz / 22.5792MHz / 45.1584MHz
12.288MHz / 24.576MHz / 49.152MHz
1. High Precision & Stability
High precision and stability are critical for low-phase-noise clock oscillators. Our specifications include:
Operating Temperature: -20°C to +70°C / -40°C to +85°C
Frequency Tolerance: ±10 / ±15 / ±20 ppm (max.)
Frequency vs. Temperature Stability: ±20 / ±25 / ±30 ppm (max.)
Example: 3CN Series Frequency-Temperature Characteristics
2. Low Phase Noise & Jitter
Low phase noise ensures higher stability and lower distortion, resulting in clearer, more natural sound quality in digital audio devices. Our phase noise and jitter specifications:
Example Frequency: 24.576MHz (3.3V, 1KHz offset)
Phase Noise: -152 dBc/Hz
RMS Phase Jitter: 82 fsec
Example: 3CN Series Phase Noise Performance
3. Recommended Models
This document outlines key considerations for selecting crystal oscillators in digital audio applications, emphasizing precision, stability, and low noise to achieve superior audio performance.
