Platinum™ IP3
Installation and Operation Manual
Analog Composite Video Modules
© 2016 Imagine Communications Corp.
Proprietary and Confidential.
September 2016 | Page 251
Load the decoded data stream into a "serial in/parallel out" (SIPO) shift register for exporting the data
in 10-bit parallel form
The 10-bit parallel data is loaded into the encoder chip on the rising edge of a 27 MHz pipeline clock,
where it is processed for digital noise reduction (DNR) to reduce low-amplitude, high-frequency noise.
Gamma correction, sub-alias filtering (SAF), and user-based color adjustments are performed in the
"parallel CCIR-601" domain. The signal is then separated into its chrominance and luminance
components, sent through the low-pass filters (LPF) to reduce aliasing effects incurred as a process of
encoding the signal, and resampled at 2X to further reduce aliasing. The oversampled parallel signal is
finally converted to analog composite video within the 10-bit DAC stage, sent through a 4-pole low pass
filter, and buffered for presentation to the output BNC connector.
Through the control system, you can control the low-pass and notch filter selection, NTSC or PAL video
standard, video pedestal, internal test signal generator, chrominance level and hue (NTSC only),
brightness, sharpness, and digital noise reduction.
You must be careful when implementing the notch and low pass filters, as a "tradeoff" between
frequency response and out of band noise often takes place.
Each of the eight channels provide standard reporting of signal presence via card-edge mounted LEDs
(Output 1 – Output 8) and via the control system. Additional system LEDs indicate the following:
The power supply indicator (POWER) shows that +24V is present on the module.
The control system acknowledgment indicator (ACT CTRL) shows that the control system is
communicating with the module.
The Output Active warning indicator (ACT OUT) indicates that a valid input signal has been switched
to an output on this module.
Back Panel I/O Module for PT-ENC-OB
The
PT-V-BP
back panel I/O module corresponds to the module.
Output Monitoring Module
The optional PT-HSRAEC-OM module provides output monitoring for the
PT-ENC-OB
.
Installation
Output Module Installation
All output modules are installed at our manufacturing facility. If you need to purchase additional
components, please contact your dealer or our Sales Department.
Back Panel I/O Module Installation
All back panel modules are installed at our manufacturing facility. If you need to purchase additional
components, please contact your dealer or our Sales Department.
