Belden Grass Valley VEA-1023 Manual To Installation And Operation

Description
The VEA-1023 is an analog video distribution amplifier with
8 outputs providing differential input, clamping, automatic
equalization and gain adjustments. Equalizing up to 300 m
(1000') of Belden 8281 cable, the gain and equalization can
be controlled from the frame control panel, the remote
control system (with menu type adjustments) or
automatically (using a test signal at the input). A multi-
colored LED, visible with the door closed, reports the card
status. The differential input provides rejection of hum and
other artifacts on incoming signals. The VEA-1023 is
housed in a Densité frame and a single or double width rear
connector panel is required.
FUNCTIONAL BLOCK DIAGRAM
Video
Input
Loop
SPECIFICATIONS
INPUT
Video signal: ................................ Any 1 Vpp nominal signal
Return loss: ................................. > 40 dB up to 5 MHz
Coupling: ...................................... DC or AC with Clamping
Level: ........................................... 0.3 to 1.5 Vpp
Impedance: .................................. 75 Ω bridging
Max. Common mode signal: ........ 28 Vpp
Common mode rejection: ............ > 65 dB to 10 kHz
OUTPUTS (8)
Video signal: ............................... 1 Vpp nominal, adjustable
Return loss: ................................. > 50 dB up to 10 MHz
............................. 75 Ω
Impedance:
Phase match between outputs: .... < 0.1° @ 4.43 MHz
Output isolation signal:................... > 40 dB @ 10 MHz
Response variation (1-8 loads):
VEA-1023
Signal
Gain
Detection
Select
Microcontroller
Status
(Hard/Soft/None)
< 0.1 dB, 20 MHz
VEA-1023 Analog Video Auto Equalizing DA
Guide to Installation and Operation
Features
• Analog video differential input with passive loop-through
• Eight 75 Ω outputs
• Signal presence and 525/625 detection and reporting
• Supports NTSC and PAL video signal formats
• Handles AES-3id audio signal format
• 50 MHz analog video bandwidth
• Equalization up to 300m (1000')
• Status LED and remote reporting
Equalization
Rem Control
PROCESSING PERFORMANCE
Gain range:
Freq. response:
EQ range:
EQ response:
Diff. gain:
Diff. phase:
Horizontal tilt:
Vertical tilt:
Signal to noise ratio:
Chroma/luma delay error: < ±1 ns
Chroma/luma gain error:
Hum:
Processing delay:
Power:
VEA-1023
M477-9500-110
October 2016
1
2
3
4
Video
Outputs
5
6
7
8
± 3 dB
<±0.02dB up to 5MHz,
±0.05dB up to 10MHz
0-300 m Belden 8281,
0-200 m Nokia 0.6/2.8
<±0.05dB up to 5MHz,
±0.15dB up to 10MHz,
< 0.15%
< 0.15° (8 loads),
< 0.1°, (2 loads)
< 0.25%, DC coupling
< 0.25%, DC coupling
> 70 dB rms/0.714V, flat 15 MHz
< ±0.02 dB
< 1 mV
15 ns
W
single 2 W, dual 2.5
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