Tascam Tascam Master Clock generator CG-1800

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MASTER CLOCK GENERATOR
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CG-1800
ADK-TCM-1401-00197
Tascam
Usually ships in 1-2 business days.
Availability: In stock
$2,499.00

Master Clock Generator

 

CG-1800

Ideal for small to large-scale video/audio synchronization systems

 

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 internal clock employs the high-precision OCXO that is not impacted by environment temperature

 

All models use a high-precision OCXO (oven-controlled crystal oscillator) that boasts a clock frequency precision of ±0.01ppm*1 and a frequency stability of ±0.005ppm per day. The jitter management circuit developed by TASCAM reduces external clock jitters, enabling a stable clock signal to video and word outputs, while a glitch-free relock circuit maintains a sustained clock phase even during clock dropouts and recovery, thus effectively preventing noise and skipping from occurring, delivering high reliability and stability to users.

*1 The numerical value at the time of factory shipment.

Easily check conditions if problems occur through logging and GPO parallel output

 

The CG-1800 comes equipped with 4 video outputs, 12 word clock outputs, two AES3/11 and two S/PDIF digital outputs, enabling the construction of large-scale synchronization systems. Furthermore, it is compatible with 2×Fs, 4×Fs, and 256×Fs outputs, as well as Pro Tools and other DAW systems.

The CG-1800 is developed so that the cause of any malfunctions can be investigated during maintenance when problem occurs. The termination of output equipment, measuring of the input level, and the analyzer function that measures input frequency are all included, supporting troubleshooting should a problem occurs, while the word clock’s output level can be adjusted to different levels, allowing for optimum signal levels to be supplied to connecting equipment. As another function that supports the detection of problems, a logging function is also included.

User maintenance enabled by the self-calibration functions via external oscillators

 

Since crystal oscillators change over time, regular calibration is necessary in order to keep the oscillator in its best condition. The CG-1800 is equipped with a self-calibration function, enabling users to perform maintenance through easy operations*2. The design takes careful measures to attain durability, including the usage of the nut-coupling Amphenol BNC connectors that are extremely resistant against pulling and twisting, and independent circuit boards for each connector that prevent contact failures caused by twisting.

TASCAM’s accumulated experience and know-how in digital synchronization technology through its development of professional equipment has been refined to create products specialized in clock synchronization. The CG-1800 is a lineup of professional-grade master clock generators that was the result of an exhaustive injection of TASCAM technology.

*2 Use of the self-calibration function requires preparation of a separate PPS-output 10MHz oscillator with a built-in GPS antenna.

Features at a glance

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

Self-calibration function using an external oscillator (Atomic/GPS 10MHz, GPS PPS)

*Use of the self-calibration function requires 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 included

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

Spec description

 CG-2000CG-1800CG-1000
Inputs 
VIDEO INPUTS 
ConnectorBNC 2 (A/B)BNC
Input level0.5Vp-p to 2.0Vp-p
Input impedance75 (ON/OFF selectable by menu)
Input signal 
SD video black burstNTSC (29.97), NTSC B/W (30), PAL (25)
HD video tri-level 
720p50, 59.97, 60
1080p23.976, 24, 25, 29.97, 30, 59.94, 60
1080i/psf23.976, 24, 25, 29.97, 30
Allowable frequency deviation10ppm
WORD/EXT INPUTS 
ConnectorBNC 2 (A/B)BNC
Input level0.5Vp-p to 5.0Vp-p
Input impedance75/50 (75/50/OFF selectable by menu)
Supported frequencies 
WORD CLOCK32k / 44.1k / 48k / 88.2k / 96k / 176.4k / 192k Hz
ATOM10.0MHz
GPS10.0MHz
Allowable frequency deviation50ppm
AES3/11 INPUT 
ConnectorXLR-3-31(1: GND, 2: HOT, 3: COLD)
Input level0.2Vp-p to 10Vp-p
Input impedance110
FormatAES11-2003, AES3-2003, IEC60958-4
Supported frequencies32k / 44.1k / 48k / 88.2k / 96k / 76.4k / 92k Hz
Allowable frequency deviation50ppm
CALIBLATION INPUT 
ConnectorBNC
Input level0.5 to 5.0 Vp-p
Input impedance50 (ON/OFF selectable by menu)
Supported frequencies 
ATOM10.0MHz
GPS10.0MHz, PPS
Outputs 
VIDEO OUTPUTS 
ConnectorBNC 4 (1-4)
Output impedance75
Output signal 
SD video black burstNTSC (29.97), NTSC B/W (30), PAL (25)
HD video tri-level 
720p50, 59.97, 60
1080p23.976, 24, 25, 29.97, 30, 50, 59.94, 60
1080i/psf23.976, 24, 25, 29.97, 30
WORD OUTPUTS 
ConnectorBNC 12 (1-12)
Output level1.0Vp-p to 3.5Vp-p (adjustable in 0.5V steps by menu)
Output impedance75
Supported frequencies32k / 44.1k / 48k / 88.2k / 96k / 176.4k / 192k Hz
Fs, Fs, 1Fs, 2Fs, 4Fs, 256Fs (Only OUTPUTS 11-12)
AES3/11 OUTPUTS 
ConnectorXLR-3-31 (1: GND, 2: HOT, 3: COLD) 2 (1-2)
Output level2.5Vp-p
Output impedance110
FormatAES11-2003, AES3-2003, IEC60958-4
Supported frequencies32k / 44.1k / 48k / 88.2k / 96k / 176.4k / 192k Hz
S/PDIF OUTPUTS 
ConnectorRCA Pin jacks 2 (1-2)
Output level0.5Vp-p
Output impedance75
FormatIEC60958-3
ALARM OUTPUT 
Connector6-pin Euroblock connector
Output levelOpen collector
Transmission methodParallel
Output impedance10ohm
Withstand voltage20V
Maximum current35mA
USBA data transfer use by a USB flash drive
ConnectorUSB B-type
ProtocolUSB2.0 High Speed (480Mbps)
Power supply ratingDC5.0V, 0.2A
Internal oscillator performance 
TYPEOCXO
frequency accuracy0.01ppm (factory default value)
frequency stability0.005ppm / day
PowerAC100 - 240V, 50/60Hz
Power consumption14W11.5W10W
Dimensions (WHD)19.0%quot; 1.77" 12.2" / 483 45 310 mm
Weight7.3 lbs. / 3.3 kg7.1 lbs. / 3.2 kg6.8 lbs. / 3.1 kg
Operating temperature range32F to 104F / 0C to 40C
Included accessoriesPower cords 2, rackmounting screw kit, operation manual (with warranty)Power cords, rackmounting screw kit, operation manual (with warranty)

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