Crystal Vision
Introduction
3
26/01/06
1 Introduction
ADDEC-200 is a broadcast decoder. It brings together onto one PCB both the functions
of a 12-bit decoder and synchroniser/delay module.
The ADDEC-200 will convert PAL/NTSC composite, Y/C or YUV component video to
SDI using a high quality 12-bit decoder which can deal with any source from broadcast
quality to VHS, and will accept damaged or jittery signals. The data is sampled at 54 Mbit
per second (four times oversampled) allowing the highest quality digital filtering. It also
offers the latest in comb technology, with a five-line comb resulting in exceptional
decoding. Timing, gains and levels are also adjustable.
The on-board video frame synchroniser allows untimed inputs to be timed to the local
syncs. It will sort out any incorrect frame rates plus any delays by taking its timing from
the external analogue reference and will automatically synchronise sources between 0 and
2 fields.
An audio follow pulse is also produced which allows ADDEC-200 to be used with an
external audio delay such as the TAD202.
The ADDEC-200 will fully integrate with any other interface or keying product from the
Crystal Vision range. Further flexibility is afforded by the large choice of control options.
Control options include board edge control, local or remote active control panel and the
Statesman PC Control System.
•
12-bit digital decoder
•
Suitable for all sources, from broadcast quality to VHS
•
High quality digital filtering and 5-line comb
•
Frame or line synchroniser or used as a fixed delay times input to local reference
syncs
•
Flexible control, including PC software.
•
Up to four Serial digital outputs
•
Internal proc amp
•
Audio follow pulse
•
Compact design for high packing density
•
Full range of inter-changeable rear connector modules
