ADC-8032A ETC [List of Unclassifed Manufacturers], ADC-8032A Datasheet - Page 39

• Manufacturer Part Number: ADC-8032A
• Description: Analog Composite to SDI Decoder
• Manufacturer: ETC [List of Unclassifed Manufacturers]

ADC-8032A User Manual (Iss. 04)
Important
Important
Important
Bank
Note
C
SW1 Function Select
then the output timing will also be undisturbed. In all other cases, the output timing will be disturbed
any time an untimed switch is made at the input of the ADC-8032A. This function sets the mode or
disables it. Three choices are available:
In either case, the output returns once the card has synchronized to the input. Use the following steps
to set the Hotswitch Mode:
B
Freeze hotswitching is not supported in Line Delay, Line Sync
and Frame Delay timing modes. If one of these timing modes
is selected and freeze hotswitching is enabled, the hotswitch
will go to black instead.
Because output timing is disrupted in Line Delay and Frame
Delay modes, hotswitching is not guaranteed to go completely
black. These two timing modes should never be used if the
input source is switched while on air, since the output timing
will be affected, and this could affect equipment downstream of
the ADC-8032A.
It is recommended that the Hotswitch Mode and Input Loss
Mode be set the same with either: both set to freeze, or both set
to black. There is circuitry in the sync stripper that removes
unwanted impulses to make the circuit more noise tolerant.
During a hotswitch, this could cause the ADC-8032A to
interpret the signal has been lost. Since the Input Loss mode
overrides the Hotswitch mode setting, having one set to freeze
and the other set to black could lead to a momentary glitch on
the screen.
Timebase error-prone signals such as from a VCR will falsely
trigger the hotswitch detector. Thus if the Input Mode is set to
VTR it forces the Hotswitch Mode to OFF.
•
•
•
1. Select Bank C, and rotate Function Select to position B.
2. Select the desired mode according to the table below:
Off - disables the Hotswitch Mode.
Black - the output momentarily cuts to black when an untimed switch is made at the
input.
Freeze - (ADC-8032A-S only) the last valid image is momentarily frozen. The
freeze will affect either field 1, field 2 or the entire frame (as determined by the
Freeze Mode function).
•
•
Toggle Mode Select up to advance up the list.
Toggle Mode Select down to descend down the list.
SW2 Mode Select
+
-
Black
Freeze
Off
HOTSW MD
Heads-Up Display Label
FREEZE
BLACK
OFF
Using Banks • 4-21
Default
OFF