Tektronix AVG1 User Manual page 19

Getting Started
AVG1 Analog Video Generator User Manual
The AVG1 Analog Video Generator module is designed to be installed in the
TG 2000 Signal Generation Platform.
The module is a high accuracy, multiformat analog video test signal generator.
The signal generation architecture is 12-bit, 27 MHz component with digital
modulation for composite signals. This ensures high accuracy, distortion free
signals within a 6 MHz video bandwidth.
This module provides three channel outputs and one trigger output. The trigger
output can be used to trigger other video equipment or an oscilloscope.
The module can generate signals in these component and composite formats:
H NTSC
H PAL
H PAL-D
H PAL-M
H PAL-N
You can create other formats with the SDP2000 program. However, the output
reconstruction filters are optimized for a 27 MHz sampling frequency.
To adjust the amplitude or time base offset parameters, follow the procedure for
Video Parameters on page 2- -11. Several amplitude parameters of the signal can
be adjusted, such as luminance amplitude and chrominance gain.
The underlying time base used to generate signals can also be adjusted. When
this parameter is adjusted, it adjusts every component of the active video signal,
such as line length, subcarrier frequency if applicable, and rise time. The signal
also becomes unframed; it has no phase relationship with the genlock input
(AGL1 Generator module). Two modules with the same time base offset value
are not necessarily framed together.
H SECAM
H GBR
H YC plus composite
H Y, B-Y, and R-Y
1- 1