Giesemann Clock Sync Module x Merging NADAC x ALPHA PROJECT

The development of Giesemann Clock Sync Module x Merging NADAC x ALPHA  PROJECT 

This version is designed along with customer who is recently purchase the Merging NADAC for his audiopile sysytem. Since NADAC is requires a specific frequency to work for all samplying rate. He contact AfterDark. and see if we have clocking solution which can provide the flexibility on working with the Giesemann Clock Sync Module (GCSM) special designed to work for the Merging NADAC. 

We know thare are some customer using Merging system. They are very interested to utilise their 10M Master Clock to improve sounding with their NADAC DAC. 

The ALPHA PROJECT is inititated with group of Audiophiles who requires the followings specifications:

• The device will power with external LPS at 12V, so that Audiophiles can power with their exotic LPS
• The chassis will be same dimension with the Giesemann Clock - Single Output
• One input of 10M at 75ohms or 50ohms
• One output of 625kHz word clock frequency for Merging NADAC or HAPI MKI.

For Merging NADAC, the device are accepting 1 inputs of Word Clock as below:

• 1 x Word Clock Inputs on BNC connectors, accept special Word Clock frequency at 625kHz. The data rate can be the same as the clock rate or an exact multiple of the clock rate.
• To achieve the best possible clocking frequency, we use the highest grade of from Giesemann OCXO Master Clock to generate the Word Clock at 625kHz. 

For Merging HAPI MKII, the device are accepting 1 inputs of Word Clock (only for DSD):

• 1 x Word Clock Inputs on BNC connectors, accept special Word Clock frequency at 352.8kHz. The data rate can be the same as the clock rate or an exact multiple of the clock rate on DSD singal.
• To achieve the best possible clocking frequency, we use the highest grade of from Giesemann OCXO Master Clock to generate the Word Clock at 352.8kHz. 
• We recommended to us HQPlayer to upsamplying all PCM to DSD 64 / 128 /256 for using 352.8kHz frequency to bypass the internal clock for Merging HAPI MKII. 

What is the design concept of Giesemann OCXO Clock Sync Module x Merging NADAC?

• The outputs signal will be in Square Wave, 75 Ohms with isolated with single output BNC Connectors.
• The chassis is rigid, heavy weighted and fine tuned with Carbon Fiber for EMI protection and ensure highest stability of Giesemann Clock Sync Module inside
• Custom made LPS (Linear Power Supply) will be power externally, with demanding applications and optimised for Giesemann Clock Sync Module
• Switchcraft 2.1mm DC socket to maxmise electrical contact on power supply
• The color of chassis will be in Black Color
• Plug and Play compatibilty for NADAC customers 

What is the range of Giesemann OCXO grade can be choose?

• All grades of Giesemann OCXO from Prince to Emperor Giesemann EVA can be made to order for customers

What is the specification to determined the Quality of OCXO?

• They can be graded by Phase Noise when compared the measurement result on both 1Hz / 10Hz intervals.
• Phase noise: -119 to -113 dBc / Hz or lower at 1 Hz offset (Grades) -137 dBc / Hz or lower at 10 Hz offset

Allan variance short-term stability reference value

[Emperor Giesemann EVA]TAU = 1sec 2.50E-13 or less（0.00025ppb / s）

[Emperor Giesemann] TAU = 1sec 2.78E-13 or less（0.00028ppb / s）
[Emperor Triple Crown] TAU = 1sec 3.8E-13 or less（0.00038ppb / s）

What is the summery of adjustable frequencies?

• 100Mhz, 50Mhz, 48Mhz, 25Mhz, 24Mhz, 8Mhz, 4Mhz, 33.8688Mhz,
• 49.152Mhz, 24.576Mhz, 12.288Mhz, 90.3168Mhz, 45.1584Mhz,
• DSD: 22.5792Mhz, 11.2896Mhz, 5.6448Mhz
• Word Clock: 625kHz (NADAC), 192kHz, 176.4kHz, 96kHz, 88.2kHz, 48kHz, 44.1kHz
• Reference Clock: 10M Master Clock 

What is the standard frequency setting for Merging NADAC customers?

• Output 1: 625kHz

The miniminst design of Giesemann Clock Sync Module (GCSM) x NADAC will work plug and play for all Merging NADAC