1-12
Section 1 — System Overview
Table 1-2. Analog Input Video Requirements. Characteristic Requirement
Video Amplitude (Luminance channel) for
Chroma Key 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 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 inputs 0.714mV with or without setup or
700mV without setup (with or without sync)
Format for each input is individually selectable
DC Offset Of Blanking Level 1
1. Exclusive of Common Mode Hum
±1 Volt 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 1V p-p
Analog Reference Input Black (Burst is not required)
Impedance (Chroma key and reference 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)
Common Mode Hum Attenuation >34 dB