
FS2 Frame Synchronizer/Converter v3.0 11 www.aja.com
Figure 1. FS2 Simplified Block Diagram
FS2 CPU
Inputs
Passive
Reference
Loops
Embedded
Web
Server
Panel
Control
LAN or WAN
Ethernet
GPI Inputs (4)
Optional
Fiber In 1
Optional
Fiber In 2
Embedded
Audio
SDI In 1
SDI In 2
HDMI In
Component
YCbCr/RGB
or
Composite (v1.1)
In
Composite In
AES/EBU
Digital Audio In
16 Channels
Analog Audio In
8 Channels
(Tascam-style Cable)
GPI
Outputs (4)
Optional
Fiber Out 1
Optional
Fiber Out 2
SDI Out 1
SDI Out 2
HDMI Out
Component
YCbCr/RGB
or
Composite (v1.1)
Out
AES/EBU
Digital
Audio Out
16 Channels
Analog
Audio Out
8 Channels
(Tascam
Cable)
Down
Converter
Composite
Out
Video
Converter
and
Framesync
Video Proc
Amp
Color
Corrector
Audio
Processor
Remote Web
Browser
Control
SNMP Control
via command line
Genlock
Outputs
Processing
PROCESSOR 1
PROCESSOR 2
Video
Sidebar
Keyer
Audio
Embedder
Video
Converter
and
Framesync
Video Proc
Amp
Color
Corrector
Video
Sidebar
Keyer
Audio
Processor
Audio
Embedder
Video
and
Audio
Output
Crosspoint
Matrix
Video
and
Audio
Output
Crosspoint
Matrix
Video
Audio
Video
Audio
Video 1
Audio 1
Video 2
Audio 2
to Video Processor 1
and Video Processor 2
Test Signal
Generator
Test Signal
Generator
Tone
Generator
Tone
Generator
Video Processors
The two Video Processors are identical and perform format conversion, frame
synchronization, signal processing, and keying operations. Each video processor
has access to any video input from the Input Crosspoint Matrix.
Up, down, or cross conversion is done with very high quality scalers. De-
interlacing is performed with high quality motion-adaptive processing including
diagonal filters. The Processing Amplifier and Color Correctors support video
signal adjustment with standard Proc Amp controls and RGB-style color
correction.
The keyers in each video processor can operate in several modes:
• Add a background for HD sidebar upconversion. The background can be
Black, a user-configurable matte, video from the other video processor (which
itself can be upconverted), or a video still (future firmware release) from the
internal stillstore.
• Add a video/key graphic from the internal graphic stillstore (future firmware
release)
• Combine the two video processors in various ways, such as creating a live
“over-the-shoulder” key.
The Video Processors can also be used as a still store and output full screen stills
or test patterns.