Tascam CG-1800 Video Sync/Master Clock Generator
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 for small to large-scale video/audio applications.
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.
Features:
- 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