The SPG-271 sync generator offers all the features expected in a sync generator, plus the advantages of digital accuracy and system flexibility. Ideal for either master or slave generator operation, the SPG271 features stable performance and a rugged 1.75 in. package.
Color Bars/Black Burst
The SPG271 uses digital signal generation and a precision 12-Bit DAC to ensure accuracy and long term stability. Digital generation of the composite PAL signal, without analogue modulators, allows use of a single DAC which inherently match chrominance and luminance timing. This ensures accurate SCH phasing.
Composite outputs, both color bars and black burst, include a white pulse inserted on line 7 of field 1 for color-frame identification.
100% or 75% color bars may be selected from the front panel.
Sync Generator with Digital Genlock
The SPG271 sync generator's stable subcarrier standard and unique digital genlock make it ideal for either master generator or slave operation. All outputs are correctly SCH phased, even if the SPG271 is locked to an improperly SCH phased reference input. The digital genlock calculates sync timing and subcarrier phase to correctly identify color framing of the reference signal. The SPG271 automatically senses composite video reference input and, in the absence of a reference input signal, automatically switches to its own internal reference. With its constant temperature oven, this high stability crystal oscillator ensures long term frequency stability.
Flexible Timing Controls
Front panel controls allow timing of all outputs relative to the genlock source. In addition, a separate set of timing controls move the pulse outputs relative to the black burst and color bar outputs. This simplifies system timing and eliminates delay lines. All timing settings are stored in nonvolatile memory to prevent loss in the event of a power failure. A front panel lockout feature prevents inadvertent changes to the front panel timing controls.
Remote Control
Remote selection of internal/external reference, ID preset, genlock and sync timing presets and tape leader countdown is provided. Selections are made with ground closures through a rear panel connector.
Packaging
The SPG271's rugged 1.75 inch (1 unit rackmount) package makes it ideal for outside broadcast vans, or anywhere space is at a premium.
- 制造商: Tektronix
- 模型: SPG271
