VISTEK V1623, V1623K Installation And Operation Manual
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V1623
V1623K
Video Analogue to Digital Converter
Module
Key Channel Analogue to Digital
Converter Module
INSTALLATION and OPERATION
© Vistek Electronics Ltd
Filename: V1623om.doc
Issue : 2
Date: June 2002
VISTEK Electronics Ltd
Wessex Rd
Bourne End
Buckinghamshire, SL8 5DT
ENGLAND
Tel. +44 1628 531221
Fax. +44 1628 530980
Web: www.vistek.tv
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Video Analogue to Digital Converter Module
INSTALLATION AND OPERATION
1. DESCRIPTION
This manual covers both the V1623 video analogue to digital converter and the V1623K Key Channel
analogue to digital converter. The Key Channel module has reduced functionality from the other version,
as unnecessary controls and components have been removed. The V1623K uses the Y/G channel of
the unit for the Key signal and the Pb/B and Pr/R channels are fixed at black in the processing.
The V1623 is a video analogue to digital converter, which forms part of the Vistek V1600 range of
interface products. It is a 3U high card, which is fitted into either a V1601, V1603 or V1606 rack from
which it gets its power and control. A passive rear module, 16VR1H or 16VR3H, is required for all
signal interconnections.
The unit is fully dual standard for both 625/50 and 525/60 D1 signals. It can automatically detect the
input standard and operate accordingly, or it can also be forced into a standard regardless of the input.
The unit can handle the analogue component signals in various formats to produce the standard D1
digital output. The formats are: Y, Pb, Pr (standard levels, Beta levels or US MII levels), with or without set-up
GBR with or without set-up
The sync reference may be a separate signal 300mV – 4V, or extracted from the Y or G signals.
Levels and timing parameters can be adjusted, along with blanking controls. An internal test pattern
generator is also included for alignment purposes.
Video Gain +
6dB
Chroma Gain + 6dB
Black Level + 100mV
Green Gain + 6dB (GBR Mode only)
Blue Gain + 6dB (GBR Mode only)
Red Gain + 6dB (GBR Mode only)
Input Format Y/Pb/Pr, GBR, MII, Beta
Output Standard 525, 625
Reference select Y/G, External
Reference Fail Mode Free Run, Black, Mute
Test Pattern Bars, Black, Picture Edge, Ramp, Split screen
Monochrome mode Colour, Monochrome
Picture position + 2.3 us
Y/C Timing + 0.55 us
Output Delay 0 – ½ line
Vertical Blanking
Wide Screen Blanking 4:3, 14:9, 16:9, Key Level
Error Detection & Handling On, Off
Limiting Set-up ear removal (525 modes only)
Engineering Mode Enables extra test Patterns & Mono Modes
Alignment mode Module alignment set-up modes
In common with all Vistek V1600 modular units there is a local control panel, which lets the user adjust
most of the controls. In addition the module may be controlled remotely using the DART system. DART
is the general purpose control architecture supplied by Vistek and other manufacturers, and enables full
control and monitoring of this and all other V1600 units.
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2. INSTALLATION
2.1 REAR PANEL CONNECTIONS
The V1623 rear module connections are shown below.
3U Rear Module (16VR3H) 1U Rear Module (16VR1H)
O/P
A2
O/P
A3
O/P
A4
Sync
(loop)
I/P
Y/G
I/P
Pb/B
I/P
Sync
I/P
Pr/R
DART
O/P
A1
O/P
A1
O/P
A2
O/P
A3
O/P
A4
I/P
Y/G
I/P
Pb/B
I/P
Pr/R
I/P
Sync
Sync
(loop)
* The V1623K Module has the Y/G input labeled as Key and the Pb/B and
Pr/R inputs are not connected.
2.2 INTERFACING
SIGNAL COMMENTS
Power 7.5W Supplied from rack
Analogue
Inputs
BNC Video ( 700mV nominal, but will handle 1.4V signals)
Sync Reference (300mV – 4V) (looping un-terminated)
SDI O/P 1,2,3,4 BNC Video to SMPTE 259M. Drive cable length up to 200m
2.3 INSERTION DELAY
Sync Reference to SDI Output
6.3µs
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