SDA9380 Micronas Intermetall GmbH, SDA9380 Datasheet - Page 42

• Manufacturer Part Number: SDA9380
• Description: Enhanced Deflection Controller And RGB Video Processor (EDDC)
• Manufacturer: Micronas Intermetall GmbH

SDA 9380 - B21
Min. No. of lines / field:
Max. No. of lines / field:
Average beam current limit:
Micronas
It defines the minimum number of lines per field for the vertical synchroniza-
tion. If the TV standard at the inputs VSYNC and HSYNC has less lines per
field than defined by Min. No. of lines / field no synchronization is possible.
The relationship between Min. No. of lines / field and the minimum number
of lines is given in the following table:
It defines the maximum number of lines per field for the vertical synchroniza-
tion. If the TV standard at the inputs VSYNC and HSYNC has more lines per
field than defined by Max. No. of lines / field no synchronization is possible.
The relationship between Max. No. of lines / field and the maximum number
of lines is given in the following table:
Brightness and contrast is reduced when the average beam current limit level
is exceeded. The beam current is measured at pin IBEAM. High voltage at this
input indicates low beam current, low voltage high beam current. The limit
range of -128 to 127 complies to a voltage at IBEAM of 2.5 to 0.84V at RIBM =
0 and 2.63 to 2.08V at RIBM = 1.
Max. No. of lines /
Min. No. of lines /
field
field
127
128
254
255
127
128
255
...
...
...
...
0
1
0
1
2
5-34
maximum number
of lines per field
minimum number
of lines per field
192
194
446
448
700
702
702
192
194
444
446
700
...
...
...
...
Preliminary Data Sheet
System description
2001-05-03