Crystal Vision
Introduction
Up-and-down-AAFD User Manual R1.2
3
17/11/10
1 Introduction
Up-and-down-AAFD provides format conversion between High Definition and Standard
Definition and different HD formats sharing the same line rate. This is achieved by using the
latest motion adaptive video de-interlacing techniques incorporating both detail and edge
enhancement processing. The Up-and-down-AAFD can pass up to two groups of embedded
audio and four groups in bypass mode. The board also includes a flexible aspect ratio
converter and AFD inserter. The Active Format Descriptor inserter is included to insert picture
aspect ratio data into the output video for aspect ratio correction by down-stream equipment.
DA outputs are available for both the reclocked input and converted program.
Up-and-down-AAFD converter
The main features are as follows:
Combined up, down and cross conversion
Motion adaptive video de-interlacing with both detail and edge enhancement
Flexible aspect ratio conversion
Auto bypass when input and output are the same standard
Handles embedded audio
SMPTE 2016-3 Vertical Ancillary Data Mapping of Active Format Descriptor
One frame video delay in all modes
Two scaled outputs and two input loop-throughs
Fits in standard frames alongside HD, SD and audio products
Up-and-down-AAFD is a 100mm x 266mm module, which fits in the four standard frames
and can be integrated with any boards from the company’s full product range. The RM34 is
the rear module of choice although the RM29 can also be used.