•
ADC-8032A -
The base model decoder includes
Proc Amp
,
Line Delay,
and
Line
Synchronizer
timing modes.
•
ADC-8032A-S -
The “
S
” model includes a
Frame Synchronizer
, along with all the
features available on the ADC-8032A
The ADC-8032A-S version comes with a fully functional frame synchronizer, capable of
synchronizing incoming video to house reference. Various timing modes are available to
accommodate most situations. New techniques in frame synchronization contribute to the board’s low
power requirements and compact design. The complete circuit for the ADC-8032A, including a 12-bit
A-D converter, decoder, frame (or line) synchronizer, serializer, TTL tracking delay pulse, and
microprocessor is contained on a single DA-sized card. Additional daughter cards are not required.
A rich set of features is instantly accessible using simple card-edge switches and controls in
conjunction with a concise Heads-Up Display. The ADC-8032A’s 10-bit decoding process provides
excellent performance with all types of picture sources. In order to achieve the highest level of
precision, all signal processing and decoding is performed entirely in the digital domain. The decoder
uses a very sophisticated 5-line comb filter with advanced adaptive control algorithms.
To make configuration simple and easy, the ADC-8032A offers a Heads-Up Display mode for most
board-level adjustments. This display is especially convenient during setup, and for programming
several ADC-8032A cards with identical configurations. With the display enabled, the parameter
currently being adjusted has its value super-imposed over
all
board outputs. As an alternative to the
Heads-up Display, the board’s Comlink Terminal Display allows you to view
all settings
simultaneously on any PC running VT-100 terminal emulation. The only requirement is a connection
between the PC’s serial port and the ADC-8032A’s Comlink connector. This feature is especially
convenient for making adjustments while the card’s output is on air.
The ADC-8032A and the ADC-8032A-S decoders are part of a full line of RossGear digital
distribution products engineered to satisfy the highest quality broadcast standards and the most
demanding requirements of your facility.
Functional Block Diagram
Input
Filter &
Clamp
Input
Filter &
Clamp
Input
Filter &
Clamp
Input
Filter &
Clamp
Input
Filter &
Clamp
Input
Filter &
Clamp
Input
Filter &
Clamp
Input
Filter &
Clamp
5-Line Aperture
Adaptive
Decoder
& TBC
12-Bit
ADC
Alternate Reference
EDH
Insertion
& SDI
Serializer
Frame
Synchronizer
(-S Version)
TTL Tracking
Delay pulse
Master
Reference
SDI OUT
Ross Frame
Reference IN
Color Black
Reference IN
NTSC
PAL
PAL-M
PAL-N
Analog IN:
Line
Synchronizer
Tracking OUT
Figure 1. Simplified Block Diagram of ADC-8032A Functions
1-2
•
Introduction
ADC-8032A User Manual (Iss. 04)