Ensemble Designs 5130 Digital to Analog Composite Converter with Digital DA - Manual (Page 2)

MODULE OVERVIEW
The 5130 module is a digital reclocking distribution amplifier (DA) providing one serial
digital input with four serial digital outputs for distributing 270 Mbs serial digital video.
Composite encoding provides four 8-bit composite monitor outputs for monitor viewing
and distribution. Setup on the monitor output is user selectable with an on-board jumper.
Reclocking signal processing performed on the input data stream provides improved jitter
performance and cable equalization of up to 300 meters.
As shown in the block diagram below, the serial input signal passes through a serial
receiver circuit where cable equalization and input monitoring is done. This output passes
to the reclocking circuitry and is then AC coupled to the four serial outputs. The reclocked
video is also routed through a deserializer and is then encoded to composite video for
feeding the four monitor outputs. The input standard (525/625) is detected automatically.
Power is derived from the ± 12 volt frame power. It is regulated to the required +5 volts
for the module by on-board regulator. The module is fused with a resettable fuse device. If
the fuse opens due to an overcurrent condition, the module will lose power. After pulling
the module, the fuse will reset automatically requiring no replacement fuse.
The on-board CPU can monitor and report module ID information (slot location, software
version and board revision), equalization (cable length), and power status to the optional
frame System Control module. This information can be accessed by the user or set to
register an alarm if desired using the remote control options available.
Model 5130 Reclocking Serial DA with Composite Monitor Outputs
5130-2
Serial
Receiver
Reclocker
Deserializer
Composite
Encoder
Outputs
Serial Output 1
Serial Output 2
Serial Output 3
Serial Output 4
Moniter Output 1
Moniter Output 2
Moniter Output 3
Moniter Output 4
5130 Reclocking DA with Monitor Outputs Block Diagram