CH PRECISION T 1, dieser ULTIMATIVE digitaler Referenztakt ermöglicht die Synchronisation in digitalen Systemen und ist der Schlüssel für die präzise Übertragung und Konvertierung von digitalen Audioinhalten. Alle fabelhaften CH PRECISION Musikinstrumente werden in der Schweiz entwickelt und hergestellt.
Beschreibung
Timing in digitalen Systemen ist der Schlüssel, um digitale Audioinhalte zu übertragen und originalgetreu zu wiedergeben. Warum? Stellen wir uns vor, dass ein Digital-Analog-Wandler-Chip von einem Takt gespeist wird, der ein hohes Maß an Phasenrauschen enthält, auch bekannt als Jitter im Zeitbereich. Anstatt in der Zeit gleichmäßig beabstandet zu sein, wird die digitale Audioinformation, die in die analoge Domäne umgewandelt wird, zufällig um die ideale Zeit herum verteilt, was unerwünschte Artefakte einführt. Je besser die Taktquelle, desto geringer das Phasenrauschen, desto genauer die Umwandlung. Ein extrem niedriges Phasenrauschen, ein hochpräziser 10MHz ofengesteuerter Oszillator (OCXO) bildet das Herzstück des T1, des ersten Taktgenerators von CH Precision.
Frequency
Nominal frequency:
10MHz, +/- 20ppb typical in internal mode, factory adjusted
10MHz, +/- 1ppb maximum with GPS option locked for 1 hour
Tuning range:
+/- 0.1ppm via BNC input
Phase noise performances:
better than -105dBc/Hz @ 1Hz deviation
better than -125dBc/Hz @ 10Hz deviation
better than -145dBc/Hz @ 100Hz deviation
better than -155dBc/Hz @ 1kHz deviation
better than -165dBc/Hz @ 10kHz deviation and above
10MHz Outputs
Output level:
500mV or 1V, peak to peak, loaded with 75Ω termination, adjustable for each output
Waveform type:
Sine or Square wave, adjustable for each output
Output impedance:
75Ω, 6x BNC coaxial connectors
External BNC Input
Input level:
5V TTL level
Input impedance:
47kΩ, BNC coaxial connector
Accepted signal frequencies:
1 PPS
44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
100kHz
Reference signal frequency deviation:
maximum +/- 0.1ppm around the above signal frequencies
General
Display:
480x272 pixels, 24bits color, AMOLED
Mains operation:
Selectable 100V, 115, 230V AC, 47-63Hz
Fuses value and location
Standby fuse (black holder): 250mA T (230V AC), 500mA T (100V AC, 115V AC)
Main fuse (white holder): 1.6A T (230V AC), 3.15A T (100V AC, 115V AC)
Power supply consumption:
<1W (standby), 60W max in operation
Dimensions/Weight:
440 x 440 x 133mm (W x D x H), 26kg
Remote control:
Ethernet based system control via the Android CH Control App
Options:
To avoid the inexorable drift in time of oscillators, a GPS option is available. Locking on satellites’ ultra-stable caesium clocks, it ensures that the T1 will perform identically today and for many years to come.
Option board:
GPS synchronization option à CHF 3400.-
Frequency
Nominal frequency:
10MHz, +/- 20ppb typical in internal mode, factory adjusted
10MHz, +/- 1ppb maximum with GPS option locked for 1 hour
Tuning range:
+/- 0.1ppm via BNC input
Phase noise performances:
better than -105dBc/Hz @ 1Hz deviation
better than -125dBc/Hz @ 10Hz deviation
better than -145dBc/Hz @ 100Hz deviation
better than -155dBc/Hz @ 1kHz deviation
better than -165dBc/Hz @ 10kHz deviation and above
10MHz Outputs
Output level:
500mV or 1V, peak to peak, loaded with 75Ω termination, adjustable for each output
Waveform type:
Sine or Square wave, adjustable for each output
Output impedance:
75Ω, 6x BNC coaxial connectors
External BNC Input
Input level:
5V TTL level
Input impedance:
47kΩ, BNC coaxial connector
Accepted signal frequencies:
1 PPS
44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
100kHz
Reference signal frequency deviation:
maximum +/- 0.1ppm around the above signal frequencies
General
Display:
480x272 pixels, 24bits color, AMOLED
Mains operation:
Selectable 100V, 115, 230V AC, 47-63Hz
Fuses value and location
Standby fuse (black holder): 250mA T (230V AC), 500mA T (100V AC, 115V AC)
Main fuse (white holder): 1.6A T (230V AC), 3.15A T (100V AC, 115V AC)
Power supply consumption:
<1W (standby), 60W max in operation
Dimensions/Weight:
440 x 440 x 133mm (W x D x H), 26kg
Remote control:
Ethernet based system control via the Android CH Control App
Options:
To avoid the inexorable drift in time of oscillators, a GPS option is available. Locking on satellites’ ultra-stable caesium clocks, it ensures that the T1 will perform identically today and for many years to come.
Option board:
GPS synchronization option à CHF 3400.-
Spezifizierungen
Outputs:
10MHz nominal frequency
Square wave: 500mV or 1V peak to peak, selectable for each output
Sine wave: 500mV or 1V peak to peak, selectable for each output
6 outputs, 75Ω BNC coaxial
Transformer-coupled outputs
Independant control of wave form for each output
Inputs:
GPS input to suit the CH Precision GPS option
TTL input for external synchronization
Ethernet for remote control (CH Control App)
USB for firmware upgrade
Power Supply:
Dedicated ultra low noise, three-stages discrete regulated linear power supplies for each section
Galvanically isolated power supplies for the OCXO, the OCXO buffer and the output buffers
Magnetically and electrostatically shielded toroidal mains transformer
Mechanics:
OCXO fitted inside a heavy aluminum block for improved core temperature stability
OCXO aluminum block mounted on soft silicon gel for maximum damping
Power transformer mounted on silent blocks
10MHz nominal frequency
Square wave: 500mV or 1V peak to peak, selectable for each output
Sine wave: 500mV or 1V peak to peak, selectable for each output
6 outputs, 75Ω BNC coaxial
Transformer-coupled outputs
Independant control of wave form for each output
Inputs:
GPS input to suit the CH Precision GPS option
TTL input for external synchronization
Ethernet for remote control (CH Control App)
USB for firmware upgrade
Power Supply:
Dedicated ultra low noise, three-stages discrete regulated linear power supplies for each section
Galvanically isolated power supplies for the OCXO, the OCXO buffer and the output buffers
Magnetically and electrostatically shielded toroidal mains transformer
Mechanics:
OCXO fitted inside a heavy aluminum block for improved core temperature stability
OCXO aluminum block mounted on soft silicon gel for maximum damping
Power transformer mounted on silent blocks
