Eversolo C10 Master Clock

Regular price $1,880.00 USD
Sale price $1,880.00 USD
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Pre-order: expected ship date to be announced

A master clock for the Eversolo system: a 10 MHz SC-cut OCXO feeding four independently buffered BNC outputs, for the T10, DAC-Z10, DAC-R8 and any source with an external clock input.

The Eversolo C10 is a high-precision master clock. One C10 feeds up to four components from a single reference, such as Eversolo's T10 streaming transport, DAC-Z10 and DAC-R8, or any source with an external clock input.

What is inside?

A custom 10 MHz OCXO (oven-controlled crystal oscillator) built on an SC-cut crystal, a doubly rotated cut that is less sensitive to temperature change and internal stress. It warms up within five minutes at 25 °C, leaves the factory within ±0.01 ppm, drifts less than 0.003 ppm from −20 °C to +60 °C and ages less than 0.002 ppm per day.

How low is the phase noise?

≤ −115 dBc/Hz at 1 Hz, ≤ −129 dBc/Hz at 10 Hz, ≤ −139 dBc/Hz at 100 Hz and ≤ −145 dBc/Hz at 1 kHz, with a noise floor of ≤ −170 dBc/Hz. Short-term stability is below 9E-13 over one second.

What can I connect?

Four independently buffered BNC clock outputs at 50 ohms, all driven by the same clock source. They run at 10, 25 or 100 MHz, or at word-clock frequencies for the 44.1 kHz family (11.2896, 22.5792, 45.1584 MHz) and the 48 kHz family (12.288, 24.576, 49.152 MHz). An SMB 1PPS input takes an external time reference; every C10 is factory-calibrated for 1PPS timing.

Display and size

An 8.8-inch IPS touchscreen shows warm-up, oscillator temperature, operating status and 1PPS calibration in real time. The aluminum-alloy chassis matches Eversolo's full-width components and measures 365 × 310 × 88 mm with feet; it weighs 5.85 kg.

Specifications

Type High-precision master clock
Clock source 10 MHz SC-cut ultra-low-noise OCXO
Clock outputs 4 × BNC, independently buffered
Output frequencies 10, 25, 100 MHz; 11.2896, 22.5792, 45.1584 MHz; 12.288, 24.576, 49.152 MHz
Output Square wave, 1.8 Vrms, 50 Ω
Time reference input 1PPS, SMB
Warm-up time Within 5 minutes at 25 °C
Factory frequency offset < ±0.01 ppm @ 10 MHz, 25 °C
Stability over temperature < 0.003 ppm, −20 °C to +60 °C
Aging rate < 0.002 ppm per day
Short-term stability < 9E-13 @ τ = 1 s
Phase noise ≤ −115 dBc/Hz @ 1 Hz; ≤ −129 @ 10 Hz; ≤ −139 @ 100 Hz; ≤ −145 @ 1 kHz
Noise floor ≤ −170 dBc/Hz
Display 8.8-inch IPS touchscreen
USB USB 2.0, firmware updates only
Power AC 100–120 V or 220–240 V, 50/60 Hz, auto-adapting; ≤ 20 W max, ≤ 0.8 W standby
Chassis Aluminum alloy
Dimensions (W × D × H) 365 × 310 × 88 mm (78 mm without feet)
Weight 5.85 kg (8.4 kg packed)
In the box Power cable, 2 clock cables, user manual, screen cloth