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cg 1800 p front  large2
Master Clock Generator Tascam CG-1800
Code : Tascam CG-1800
Deskripsi :
Deskripsi :
 

The CG-1800 master clock generator generates NTSC, PAL and HD Tri-level video clock – as well as word clock through BNC, AES/EBU and S/PDIF outputs – ensuring compatibility with any synchronization system

The CG Series s three distinct models tailored to different types of studios. The CG-2000 is designed for the needs of broadcasting and post production, the CG-1800 for small to large-scale video/audio synchronization systems, and the CG-1000 for recording studios, live sound applications and professional musicians.

The crystal oscillator is the heart of the clock generator. In each model of the CG Series, an OCXO (oven-controlled crystal oscillator) is used for its high precision, and the fact it is not influenced by the temperature of the environment. Boasting a clock frequency precision of 0.01 ppm*1, which exceeds that of a TCXO (temperature-compensated crystal oscillator), this unit is key in the creation of high-precision synchronization systems - with word output frequency stability of ±0.005ppm or less per day.

The CG-2000 is equipped with an external input connector that supports a 10MHz signal.  This allows it to be connected to a rubidium clock or GPS clock for even higher precision.

External clock jitter is reduced using an original TASCAM circuit design that incorporates a high-performance video clock generator engineered with a FPGA*2 and a PLL (phase-locked loop) circuit with a discrete filter. This enables a stable clock signal to be provided to the video/word outputs - improving system stability. The glitch-free relock circuit prevents noise and skipping sounds caused by master clock dropouts.

In addition to (12) word clock outputs and (4) video outputs, the digital outputs (2) AES3/AES11 and (2) S/PDIF outputs, making this unit useful for large-scale audio/video synchronization systems, and a wide variety of other applications. Of the (12) word outputs, two also support x2Fs, x4Fs and 256Fs output - enabling them to be used in systems with ProTools and other DAW software.

The CG Series has multiple functions to support maintenance, and the identification of issues if problems occur. The analyzer function measures output device termination, input level measurement (for CG-2000 and CG-1800), and the measurement of input frequencies. These built-in features enable the devices to provide troubleshooting support. Additionally, a logging function enables issues to be listed, and saved to a CSV file format on a USB flash drive.

Since crystal oscillators change over time, regular calibration is necessary. In order to avoid possible sync problems, timely inspections – along with regular maintenance is d. The CG Series has a self-correction function, enabling users to conduct maintenance using an external signal input*3 and simple operations.

Amphenol BNC connectors on the chassis use nuts for coupling – making them very durable, Also, a single circuit board is used for each connector - providing excellent resistance to the twisting and pulling of cables, and the suppression of interference between connectors.

The CG Series is the latest in the line of innovative TASCAM professional digital products – engineered with the latest digital clocking technology.
 


*1 Factory default value
*2 FPGA (Field Programmable Gate Array)
*3 Use of the self-calibration function s preparation of a separate PPS-output 10MHz oscillator with a built-in GPS antenna.

 
Fitur :
 
  • Two power supply circuits for redundancy [CG-2000 only]
  • Supports video reference/word clock redundancy [CG-2000 only]
  • Internal clock uses a high-precision OCXO (oven-controlled crystal oscillator) that is not influenced by the temperature of the environment
  • External input connector that supports 10MHz, allowing creation of systems with even higher precision
  • Jitter management circuit provides stable clock
  • Glitch-free relocking circuit prevents noise and skipping during clock dropouts and recovery
  • Numerous output connectors, including (12) word clock outputs, enabling the use in large-scale video/audio synchronization systems
  • Supports input and output of a variety of video signal formats, including NTSC, PAL and HD Tri-level
  • AES3 and AES11 signals can also be used for external master clock input sources
  • Analyzer function that can measure output device termination
  • Optimal levels can be provided to other devices by adjusting wordclock output levels
  • Error status can be outputted using GPO parallel output, allowing the monitoring of error occurrence
  • Self-calibration function using an external oscillator (Atomic/GPS 10MHz, GPS PPS)
    *Use of the self-calibration function s the use of a separate PPS-output 10MHz oscillator with a built-in GPS antenna.
  • Word clock performance up to 192 kHz
  • 0.1% pull-up/down for 24F(Film) and 29.97F(NTSC), and 4% pull-up/down for 24F(Film) and 25F(PAL)
  • Up to (4) system settings can be saved to buttons for recall, and saved settings can be imported and exported via USB
  • Durable nut-coupling BNC connectors made by Amphenol
  • Independent circuit boards for each connector prevents contact failures due to twisting
  • Three-prong IEC power cable d
  • Panel-lock switch can be used to prevent inadvertent changes to unit operation
  • 128x64-pixel organic EL display with a wide viewing angle
  • Firmware updates possible using the USB port
  • EIA 1U rack mount size
  • RoHS-compliant product
 
Spesifikasi :
 
  CG-2000 CG-1800 CG-1000
Inputs  
VIDEO INPUTS  
Connector BNC×2(A/B) BNC -
Input level 0.5Vp-p to 2.0Vp-p -
Input impedance 75ohm (ON/OFF selectable by menu) -
Input signal  
SD video black burst NTSC(29.97), NTSC B/W(30), PAL(25) -
HD video tri-level  
720p 50, 59.97, 60 -
1080p 23.976, 24, 25, 29.97, 30, 59.94, 60 -
1080i/psf 23.976, 24, 25, 29.97, 30 -
Allowable frequency deviation +/-10ppm -
WORD/EXT INPUTS  
Connector BNC×2(A/B) BNC
Input level 0.5Vp-p to 5.0Vp-p
Input impedance 75ohm/50ohm(75/50/OFF selectable by menu)
Supported frequencies  
WORD CLOCK 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
ATOM 10.0 MHz
GPS 10.0MHz
Allowable frequency deviation +/-50ppm
AES3/11 INPUT  
Connector XLR-3-31(1:GND, 2:HOT, 3:COLD)
Input level 0.2Vp-p to 10Vp-p
Input impedance 110ohm
Format AES11-2003, AES3-2003, IEC60958-4
Supported frequencies 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
Allowable frequency deviation +/-50ppm
CALIBLATION INPUT  
Connector BNC
Input level 0.5 to 5.0 Vp-p
Input impedance 50ohm(ON/OFF selectable by menu)
Supported frequencies  
ATOM 10.0 MHz
GPS 10.0MHz, PPS
Outputs  
VIDEO OUTPUTS  
Connector BNC×4(1-4) -
Output level 1.3Vp-p -
Output impedance 75ohm -
Output signal  
SD video black burst NTSC(29.97), NTSC B/W(30), PAL(25) -
HD video tri-level  
720p 50, 59.97, 60 -
1080p 23.976, 24, 25, 29.97, 30, 50, 59.94, 60 -
1080i/psf 23.976, 24, 25, 29.97, 30 -
WORD OUTPUTS  
Connector BNC×12(1-12)
Output level 1.0Vp-p to 3.5Vp-p (adjustable in 0.5V steps by menu)
Output impedance 75ohm
Supported frequencies 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
1/4xFs, 1/2xFs, 1xFs, 2xFs, 4xFs, 256xFs (Only OUTPUTS 11-12)
AES3/11 OUTPUTS  
Connector XLR-3-31(1:GND, 2:HOT, 3:COLD)×2(1-2)
Output level 2.5Vp-p
Output impedance 110ohm
Format AES11-2003, AES3-2003, IEC60958-4
Supported frequencies 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
S/PDIF OUTPUTS  
Connector RCA pin jacks ×2(1-2)
Output level 0.5Vp-p
Output impedance 75ohm
Format IEC60958-3
ALARM OUTPUT  
Connector 6-pin Euroblock connector -
Output level Open collector -
Transmission method Parallel -
Output impedance 10ohm -
Withstand voltage 20V -
Maximum current 35mA -
USB A data transfer use by a USB flash drive
Connector 4-pin type B
Protocol USB2.0 High Speed (480Mbps)
Power supply rating DC5.0V, 0.2A
Internal oscillator performance  
TYPE OCXO
frequency accuracy +/-0.01ppm(factory default value)
frequency stability +/-0.005ppm / day
Power AC100V to 240V, 50/60Hz
Power consumption 14W 11.5W 10W
Dimensions 483(W)×45(H)×310(D)mm
Weight 3.3kg 3.2kg 3.1kg
Operating temperature range 0˚C to 40˚C
Included accessories Power cords×2, rackmounting screw kit, operation manual (with warranty) Power cords, rackmounting screw kit, operation manual (with warranty)
Jumlah :


 




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