Grass Valley 8901 - Manual (Page 7)

8901/8902/8906 Instruction Manual 7
8901/8902/8906
Analog Video DA Modules
Introduction
The 8901, 8902 and 8906 Analog Video Distribution Amplifier modules are
a series of precision DAs for distributing analog video. All modules offer
excellent differential gain and phase and common mode rejection specifica-
tions.
Each 8900 DA module features:
• Passive differential loop-through input for excellent common mode
hum rejection even when cable runs are adjacent to AC Mains cables,
• Distribution of NTSC, PAL, SECAM, RGB, YUV, and Tri-level Sync
video,
• Installs in the 8900, 8800, and 8500 Grass Valley frames with:
• Eight outputs in 8900 and 8800 Series frames,
• Six outputs in 8500 Series frames, and
• Card edge gain control.
A comparison of module functions for the 8900 Analog Video DA Series is
given in
Table 1 .
Table 1. 8900 Analog Video DA Comparison
Function 8901 8902 8906
Card edge gain adjustment X X X
DC/AC coupling X X X
DC restoration – X X
Card-edge adjust equalization – X X
Fast or slow clamping – – X
White clip threshold adjustment – – X
Remote monitoring – – X