Sierra Video EMD-218 - Manual (Page 8)

Page 8 of 29 EMD-218 Owner’s Manual
• (V 2.2)
The EMD-218 has a very flexible signal flow path and feature set that combines several products into
one compact package. This section describes the basic operation of your EMD-218 product.
Figure 1. Simplified Block Diagram of EMD-218 Functions
The EMD-218 is best thought of as a large audio router, with a variety of input format and output
formats available. Router inputs are de-embedded audio, discrete AES audio, differential analog audio,
and (optionally) Dolby Decoded audio. Router outputs are embedded audio, and discrete AES audio
Each router output provides a gain and polarity control, and each router output can be sourced from
any input channel. This router feature gives your EMD-218 a great deal of flexibility.
There is also a video proc module to allow any necessary corrections to the inbound video signal. It has
separate controls for Luma gain (Y channel), Saturation (C channel gain), Lift (Y channel offset), and
Phase adjustment (C channel).
All card features are controlled through the card edge menu interface. There is a 4 character display, a
toggle switch, and two buttons to allow for intuitive control of all device features.
The card has persistent storage of all settings. There is a menu option to trigger a save or load of stored
settings, or to restore the factory default configuration.
Supported Audio and Video Formats
Input and Output Video
The EMD-218 supports the complete range of modern SMPTE standard SD and HD video formats.
Raster structure Frame Rate
1080psF
23.98, 24
1080p 23.98, 24
1080i
1
25, 29.97, 30
720p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
486i
1
29.97
575i
1
25
Notes:
HD/SD
SDI Input
EQ and
Deserialize
CDI-9323 Block Diagram
Audio Control:
Routing
Gain
Polarity
Diff. Analog
Audio A/D
AES
Decode
and SRC
Dolby E
Decode
and SRC
From AES or
Embedded Audio
8 pairs
16 channels
8 channels
Audio
De-embed
Audio
Embed
AES
Encode
Video Proc:
Gain, Lift, Saturation, Phase
Video Video
Serializer
and Cable
Driver
8 pairs
16 channels