Tektronix Grass Valley 4000, Installation And Service

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1-15
System Specifications
Table 1-2. Analog Input Video Requirements
Characteristic Requirement
Video Amplitude (Luminance channel) for
Primary Inputs 0.714 mV with/without setup or
0.700 mV without setup (with or without sync)
Maximum luminance Excursion
Relative To Black level
(before clipping) +108 IRE peak positive
- 6 IRE peak negative
Video Amplitude For Color
Difference Chroma Key and Analog Inputs
(100% saturated bars) Betacam ± 467 mV
MII 60 Hz ±324 mV
MII 50 Hz ±350 mV
SMPTE ±350 mV
EBU ±350 mV
(Format for each input is individually
selectable)
Video Amplitude For RGB Chroma Key and
Analog Inputs 0.714mV with or without setup or 700mV
without setup (with or without sync)
(Format for each input is individually
selectable)
Linear Key Amplitude 0.714 mV with or without setup or 0.700 mV
without setup
DC Offset Of Blanking Level
1
1. Exclusive of Common Mode Hum
± 1Volt DC
Common Mode Hum
2
2. With DC Offset at 0.0 volts
1.0 V p-p Max
Random Noise < -54 dB RMS relative to 1 V p-p
Analog Reference Input Black (Burst is not required)
Impedance (Chroma key and analog inputs) 75
Ω
Terminating (Chroma Key/Analog
Inputs)
75
Ω
loop-through (Reference input)
Return Loss > 40 dB to 5 MHz
Manual Timing steps 18 nS
Manual Timing range ±1 µS (Chroma Key inputs)
±37 nS (Analog inputs)
Common Mode Hum Attenuation >34 dB