Tascam CG-2000 – Master Clock Multi-Output Precision Generator

Product Overview

The TASCAM CG-2000 is a professional master clock generator designed for broadcast stations and post-production facilities requiring the highest level of synchronization accuracy and system redundancy. It uses an oven-controlled crystal oscillator (OCXO) for clock precision that is not affected by environmental temperature variation, and supports video reference sync, word clock, AES/EBU, and S/PDIF outputs for integration into large-scale audio/video systems. Dual redundant power supplies make the CG-2000 the top of TASCAM's CG series for deployments where downtime is not acceptable.

Product Description

The CG-2000 generates NTSC, PAL, and HD tri-level video clock signals, along with word clock outputs via Amphenol BNC connectors — chosen for their resistance to pulling and twisting forces in installation environments. External jitter from incoming reference signals is suppressed by a proprietary TASCAM circuit incorporating an FPGA and PLL discrete filter, which stabilizes the output clock regardless of input signal quality. The unit supports a 10 MHz external input for GPS-disciplined oscillator integration, enabling synchronization to an atomic frequency standard when absolute precision is required. If the primary reference clock source fails, the CG-2000 maintains output clock continuity using a secondary reference source, preventing audio dropouts or phase discontinuities in downstream equipment. A self-calibration function allows on-site maintenance without sending the unit to a service center, provided a GPS-equipped 10 MHz PPS oscillator is available. The display shows active reference clock, output frequency, and error status at a glance. The CG-2000 supports redundant power operation by connecting two independent AC circuits, meeting broadcast-grade uptime requirements. Independent circuit boards for each BNC connector prevent contact failures caused by mechanical stress over time. The CG-2000 is available at Creation Networks.

Key Features

• OCXO Internal Clock — Oven-controlled crystal oscillator maintains frequency stability regardless of ambient temperature variation, meeting broadcast-grade precision requirements.
• Dual Redundant Power Supplies — Two independent AC power circuits prevent clock interruption due to a single power source failure.
• FPGA/PLL Jitter Reduction — Proprietary circuit design suppresses external reference clock jitter to deliver a stable, clean output to all connected devices.
• Secondary Reference Failover — Automatically switches to a secondary reference source if the primary drops out, maintaining output clock continuity without phase discontinuity.
• 10 MHz External Input — Accepts a GPS-disciplined 10 MHz signal for atomic-accuracy synchronization in broadcast and post-production environments.
• Multi-Format Video Reference — Supports SD black burst (NTSC/PAL) and HD tri-level sync (720p, 1080i, 1080p, 1080PsF) input and output formats.
• Amphenol BNC Connectors — Nut-coupling connectors rated for high pull and twist resistance on all video and word clock connections.
• Self-Calibration Function — Enables field calibration using an external GPS-referenced 10 MHz PPS oscillator, reducing service center dependency.

Typical Applications

• Broadcast studio master sync reference
• Post-production facility clock distribution
• Live broadcast truck synchronization
• Auditorium AV system master clock
• Government and legislative broadcast facility

Technical Specifications

Frequently Asked Questions

What makes the CG-2000 different from the CG-1800?

The CG-2000 adds dual redundant power supplies and is positioned as TASCAM's top broadcast-grade master clock. The CG-1800 shares the OCXO and multi-output architecture but lacks the redundant power option.

Does the CG-2000 support GPS synchronization?

Yes. The CG-2000 accepts a 10 MHz external input, allowing connection to a GPS-disciplined oscillator for atomic-accuracy synchronization. A separate GPS PPS oscillator is required and not included.

What happens if the primary reference clock signal is lost?

The CG-2000 maintains output continuity by switching to a secondary reference source, preventing downstream audio dropouts or phase discontinuities during the interruption.

Is the CG-2000 compatible with Pro Tools and other DAW systems?

Yes. Word clock and AES/EBU outputs are compatible with Pro Tools, major DAW interfaces, and digital consoles. The unit supports 2×Fs, 4×Fs, and 256×Fs word clock output rates.

What warranty applies to the CG-2000?

TASCAM products purchased through authorized dealers like Creation Networks are covered under TASCAM's standard limited warranty. Contact Creation Networks for warranty and service support.