Miranda VDA-1001 Operation And Installation Manual

SÉRIE DENSITÉ
VDA-1001

Introduction

The VDA-1001 is an analogue video distribution amplifier with
a differential looping input and 8 outputs. Gain can be
controlled from the card edge. An input video signal status is
also available indicating the input signal presence. The
differential input provides rejection of hum and other artefacts
on incoming signals. The VDA-1001 is housed in a DENSITÉ
frame and requires a single or double rear connector panel.
INPUT
VIDEO
LT

Technical specifications

Input
Signal: ......................................... 1 Vpp nominal
Return loss: ................................. >45 dB up to 10 MHz
Coupling: ..................................... DC
Level:........................................... 0.3 to 1.5 Vcc
Impedance: ................................. 75 ohms
Common mode signal: ............... 28 Vcc
Common mode rejection: ............ >65 dB to 10 kHz
Output
Signal (8): ................................... 1 Vpp nominal, ajustable
Return loss: ................................. >45 dB up to 20 MHz
Impedance: ................................. 75 ohms
Phase match
between outputs: PAL -SECAM .. <0.1 ° @ 4.43 MHz
NTSC .............. <0.1 ° @ 3.58 MHz
Cross talk: ................................... > 40 dB @ 10 MHz
Response variation:..................... <0.1 dB,
.................................................... 1 to 8 loads, to 20 MHz
Specifications are subject to change without notice..
Detection
signal
Select
Status
VDA-1001 Functional Block Diagram
VDA-1001 - Analogue Video Distribution Amplifier

Features

•
Analogue video differential input with passive loop-
through
•
8 x 75 Ohms outputs
•
Supports 525/625 lines
•
Supports PAL, SECAM and NTSC video standards
•
90 MHz analogue video bandwidth
•
Control of gain from the card edge
•
Status Led and remote reporting
Gain
Microcontroller
Processing Performance
Gain: ..................................±3 dB
Frequency response: .........±0.02 dB up to 5 MHz
............................................±0.1 dB up to 10 MHz
............................................-3 dB @ 90 MHz typically
Differential gain: ..................<0.15 %
Differential phase: ...............<0.15 ° with 8 loads
............................................<0.1° with 2 load
Horizontal tilt: ......................<0.25% coupling DC
Vertical tilt: ..........................<0.25 % coupling DC
S/N : ....................................>70 dB up to 15 MHz
............................................(rms noise/0.714V, unweighted)
Chroma/luma delay: ...........< ±1 ns
Chroma/luma gain: .............< ±0.02 dB
HUM: ..................................<1 mV
Processing delay ................15 ns
Power: .................................single 1.5 W
............................................double 2W
Operation and installation manual
Rem Control
M452-9900-100
February 2002
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VIDEO
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OUPUTS
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