Tascam CG-1800 Master Clock Generator

Product Code: TACG1800

Availability:Out of stock

Tascam CG-1800 Master Clock Generator

Product Code: TACG1800

Availability:Out of stock

Limited Time Offer
$1,999.99

Highlights

  • 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

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*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 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 Pro Tools 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*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

CG-1800 SPECIFICATIONS

Inputs

VIDEO INPUTS

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

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

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 11.5W

Dimensions

483(W)×45(H)×310(D)mm

Weight 3.2kg

Operating temperature range

0°C to 40°C

Included accessories Power cords, rackmounting screw kit, operation manual (with warranty)

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