36 680 Series Video Distribution Amplifiers Installation and Operation Manual
Chapter 8: Specifications
VEA-684 Video Equalizing Amplifier Modules
Table 8-18. VEA-683 Equalization Specifications
Item Specification
Range 0–984 ft (0–300 m) Belden 8281 cable
0–656 ft (0–200 m) Belden 8241 cable
0–820 ft (0–250 m) Belden 1505A cable
0–984 ft (0–300 m) Belden 1694A cable
0–656 ft (0–200 m) PSF 1/3 cable
Response < ±0.05 to 5 MHz
< ±0.15 dB to 10 MHz
Table 8-19. VEA-683 Temperature Specifications
Item Specification
Performance 41°–104° F (5°–40° C)
Operating 32°–122° F (0°–50° C)
Table 8-20. VEA-683 Power Requirements Specifications
Item Specification
Power dissipation < 2 W
Table 8-21. VEA-684 Input Specifications
Item Specification
Video input level 1 Vp-p nominal
Maximum input level 2.5 Vp-p centered at 0V
Input impedance 75Ω bridging
Coupling DC and AC jumper selectable
Input return loss > 40 dB to 20 MHz
Common mode rejection ratio > 65 dB to 10 kHz
Table 8-22. VEA-684 Output Specifications
Item Specification
Number of outputs 8
Level 1 Vp-p nominal
Output impedance 75 Ω
Output return loss > 45 dB to 5 MHz
> 40 dB to 10 MHz
Output isolation > 35 dB to 10 MHz
Phase match between outputs < ±0.2°
Response variation < 0.1 dB, 1 to 8 loads at 10 MHz
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