KCCS
Precision Timing
Low-phase-noise OCXO and VCXO modules for reference DACs, streamers and digital transports — the quietest clock in the audio chain.
In DACs, streamers, CD transports and network players, the master clock jitter sets the noise floor the listener hears. An inexpensive 10 MHz oscillator raises the raised-sideband noise and reintroduces low-level sidebands that jitter-reduction PLLs cannot fully remove. High-end audio designers — and the audiophile reviewers who measure them — have learned that a low-phase-noise oscillator in the digital section is audible as a quieter background, tighter imaging and less grain.
KCCS OCXO and ultra-low-phase-noise VCXO modules are used in reference DACs and digital transports by boutique audio brands in Europe and North America. The same parts that make radar receivers quiet also make a 192 kHz/24-bit DAC measure cleaner.
For hi-fi audio and reference DACs, our low-phase-noise VCXO (KV09 series) is the primary recommendation — its sub-0.5 ps RMS jitter minimizes clock-induced sidebands in the analog output. For higher-end master-clock apps, the OCXO options below are also listed.
| Product | Best For | Phase Noise / Jitter | Package |
|---|---|---|---|
| KV09 Low-Phase-Noise VCXO ★ | Primary: DAC master clock, low-jitter PLL reference | <0.5 ps RMS jitter, -155 dBc/Hz @1 kHz | SMD 14.4×9.5 |
| KONB27 / KONM09 OCXO | Reference DAC, digital transport | -168 dBc/Hz @1 kHz | DIP 27×27 / 9×7 |
| KONS327 OCXO | 10 MHz master clock, audiophile streamer | -160 dBc/Hz, ADEV 8E-14 | DIP 32.7 |
| KOP15 low-power OCXO | Portable / battery-powered audio | 3.3 V, 23 mA steady | DIP 15×15 |