1
1 ASD-111i 4:2:2 Analog to Digital Converter
1.1 Introduction
The ASD-111i is a high-quality 10-bit analog to digital 4:2:2 video converter. A wide
range of component analog video (CAV) inputs are supported including GBR,
SMPTE/EBU, Betacam, and MII. Its microcontroller-based technology simplifies
switching from one standard to another. As an EDH inserter, the ASD-111i will insert
EDH Check Sum and Flag information into the outgoing serial signal. The ASD-111i's
powerful automatic calibration feature can accommodate a non-standard video or
correct a calibration defect in the incoming video signal. Factory set with 11 different
formats, all user configurations are stored in non-volatile memory for ease of use.
The ASD-111i's digital oversampling offers the best signal quality, while digital
processing eliminates the need for analog adjustments. A total of three 4:2:2 serial
digital video outputs are supplied; all 4:2:2 outputs conform to the SMPTE 259M
standard.
The ASD-111i is a member of the
imaging
family of digital video cards and therefore
requires the
imaging
Quartet, Quartet-C or Quartet-M,
imaging
Solo or
imaging
Symphonie housing frame for mounting and power.
Figure 1.1
ASD-111i Functional Block Diagram
1.2 Features
•
GBR, SMPTE/EBU, Betacam
and MII
analog inputs
•
Automatic 525/625 input detection
•
Studio reference input with loop-through
•
Three 4:2:2 serial digital video outputs
•
High-quality 10-bit signal path
•
2X oversampling
Microcontroller
1
4:2:2
OUT
REF IN
REMOTE
CONTROL
2
3
G/Y
B/B-Y
R/R-Y
Genlock
Color
Space
Converter
Formatter
&
Calibration
Test
Generator
ADC
EDH
Insertion
