Nevion ADC-SDI-CC - Manual (Page 5)

ADC-SDI-CC Rev. 3
DATE: 23 July 2008
Network Electronics AS, P.O.Box 1020, N-3204 Sandefjord, Norway. Tel.: +47 33 48 99 99 – Fax: +47 33 48 99 98
E-mail: [email protected] – Web: http://www.network-electronics.com/
Technical specifications are subject to be changed without notice.
5
1. General
The flashlink
®
ADC-SDI-CC is a high quality digital video decoder that digitises and decodes all
popular baseband video formats into SDI 4:2:2 digital component video. The ADC-SDI-CC supports the
analogue-to-digital conversion of component RGB and YPbPr signals, as well as the decoding of NTSC
and PAL composite and S-video into component digital video. This decoder features four 10-bit A/D
converters running with 2 x oversampling (27MHz), which are then digitally filtered and decimated to the
1 x pixel rate giving a higher signal-to-noise ratio for each input channel.
When used with the GYDA control system, gain adjustments may be made to each analogue input.
Composite video decoding utilises a 5-line adaptive comb filter for both the luma and chroma signal
paths to reduce cross-luma and cross-chroma artefacts. A alternative chroma trap filter is also available.
On composite and S-video inputs, the user can control video characteristics such as contrast, brightness,
saturation and hue via the GYDA control interface. The GYDA system controller is used with all
flashlink and flashlink modules providing a common control and monitoring platform.
ADC-SDI-CC features:
• Multi-standard NTSC, PAL, YPbPr, RGB Decoder/Converter
• 10 bit 4:2:2 SDI video quality
• 5 line adaptive comb filter for NTSC/PAL decoding
• EDH generation and insertion
• 2 x oversampling of both composite and component video
• 10 bit component 8:8:8 oversampling with digital 4:2:2 decimation and down-conversion
• VBI data transparent
• 3 SDI outputs
Figure 1 – Simplified block diagram of the ADC-SDI-CC card