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VCA6800+S/D

1x4 or 1x8, Analog Video, Clamping and Equalizing
Selenio 6800+™
Selenio 6800+™
Block Diagram
Block Diagram
VCA6800+S Back Module
VCA6800+S Back Module
VCA6800+D Back Module
VCA6800+D Back Module

The VCA6800+ is an analog video clamping and equalizing distribution amplifier (DA) built for use with the 6800+™ modular core processing platform.

This DA provides a jumper-selectable input-coupling mode (DC or AC coupling) and is capable of hard and soft clamping to the composite NTSC and PAL video signal.

Features

  • One differential input
  • Eight outputs with double-back module; four outputs with single-back module
  • AC and DC input coupling selectable
  • Looping and internal terminating selectable with dual-slot back module; internal terminating with single-slot back module
  • ±3 dB gain adjustable range
  • >50 MHz bandwidth
  • Continuous cable equalizing up to 984 ft (300 m) Belden 8281 cable or equivalent
  • Back porch clamp with selectable soft, hard and non-clamp modes
  • Hot-swappable
  • Optional removable gain/EQ control
  • Module presence reporting via Imagine® CCS Navigator™ control system

Specifications

Specifications and designs are subject to change without notice

Inputs
Input Level 1 V pk-pk nominal
Maximum Input Level 2.5 V pk-pk centered @ 0 V
Input Impedance 75 ohms, looping or internal terminating selectable
Input Coupling DC-, AC-selectable
Input Return Loss >45 dB to 5 MHz, >40 dB to 10 MHz
CMRR >65 @ 10 kHz
CM Input Range >28 V pk-pk
Outputs
Number of Outputs 8 (D back module), 4
(S back module)
Output Impedance 75 ohms
Output Return Loss >45 dB to 5 MHz, >40 dB to 10 MHz
Output Isolation >40 dB @ 10 MHz
Response Variation <0.1 dB @ 10 MHz
Phase Match <±0.2°
Performance
Gain -3 to 3 dB
Frequency Response ±0.05 dB DC-10 MHz, ±0.2 dB to 20 MHz, -3 dB >50 MHz
Line Tilt <0.20% DC coupling
Field Tilt <0.20% DC coupling
Differential Gain <0.15%
Differential Phase <0.15°
DC Offset <25 mV
EQ Response ±0.05 dB to 5 MHz, ±0.15 dB to 10 MHz, 0-300 m Belden 8281
Clamp Level <±25 mV
Clamp APL Effect <±5 mV
Clamp Delay 3 lines for hard, 7 lines for soft
S/N >70 dB by VM 700
Propagation Delay 15 ±1.0 ns
Performance Temperature 41° to 104° F (5° to 40° C)
Operating Temperature 32° to 122° F (0° to 50° C)
Power Dissipation <2 W

Ordering Information

VCA6800+S 1x4 DA, analog video, clamping and equalizing, 1 slot
VCA6800+D 1x8 DA with looping input, analog video, clamping and equalizing, 2 slots