- Description
Details
The CG Series includes 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, 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 an FPGA 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 include (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 required. The CG Series has a self-correction function, enabling users to conduct maintenance using an external signal input 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.- Features
Features
- High-precision OCXO (Oven-Controlled Crystal Oscillator) with 0.01PPM accuracy
- Jitter management circuit for stable clock output
- Glitch-free relocking circuit prevents noise and skipping during clock dropouts and recovery
- 10MHz input for use with Rubidium or GPS clock generators
- Twelve word clock outputs, two of which support 1/2Fs, 1/4Fs, 2xFs, 4xFs, and 256xFs the selected rate
- Two AES/EBU and two S/PDIF outputs
- Four system presets, saved internally with USB drive backup
- Sampling Frequencies from 32kHz to 192kHz are supported
- Panel lock switch to prevent accidental changes
- Four video clock outputs
- Video clock input
- Tri-level sync support for high-definition video
- Clock Analyzer functions for troubleshooting
- Video and word clock inputs
- AES/EBU clock input
- 1U rack mount size
- Specification
Video Input Connector 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 HD Video Tri-Level - 1080p 23.976, 24, 25, 29.97, 30, 59.94, 60 HD Video Tri-Level - 1080i/psf 23.976, 24, 25, 29.97, 30 Allowable Frequency Deviation +/-10ppm Word/Ext Input Connector 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 Supported Frequencies - ATOM 10.0 MHz Supported Frequencies - 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 Calibration 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 Supported Frequencies - GPS 10.0MHz, PPS Video Output Connector BNCx4 (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 HD Video Tri-Level - 1080p 23.976, 24, 25, 29.97, 30, 50, 59.94, 60 HD Video Tri-Level - 1080i/psf 23.976, 24, 25, 29.97, 30 Word Output Connector BNCx12 (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 Output Connector XLR-3-31 (1:GND, 2:HOT, 3:COLD)x2 (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 Output Connector RCA pin jacksx2 (1-2) Output Level 0.5Vp-p Output Impedance 75ohm Format IEC60958-3 USB 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 General Power AC100V to 240V, 50/60Hz Power Consumption 11.5W Operating Temperature Range 0˚C to 40˚C Included Accessories Power cords, rack-mounting screw kit, operation manual Dimensions (H x W x D) 1.77" (45 mm) x 19.02" (483 mm) x 12.20" (310 mm) Weight 7.05 lbs (3.2 kg) - Documents
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