CH Tech Pulse Generator - Manual (Page 7)

1
1.0 GENERAL DESCRIPTION
The VX462B is a B-size VXIbus compatible programmable 20 MHz pulse generator with an
additional 40 MHz square wave function. The module can output single or double pulse patterns
that can be continuous streams or externally triggered or gated. The pulse repetition interval and
pulse width are programmable and a delay time may be programmed in the delayed or double
pulse modes. The output amplitude is also programmable.
1.1
PURPOSE OF EQUIPMENT
This module is well suited for applications within automated test equipment and hardware-in-
the-loop simulation systems, as well as development laboratory environments.
1.2
SPECIFICATIONS OF EQUIPMENT
1.2.1 Key Specifications
 Single and double pulse modes
 Continuous, triggered, gated, and delayed modes
 Programmable pulse repetition interval and pulse width
 Programmable delay time


10Vpp output amplitude with low impedance output, or

5Vpp output amplitude with 50 Ohm impedance output selected.
 Read back capability on all registers
1.2.2 Electrical
The module requires the +5V and +12V power from the VXI backplane. The peak module
current (I
PM
) for the +5 volt supply is 3.0 amps and for the +12 volts it is 0.4 amps. The pulse
timing and output characteristics are shown in Figure 1.
1.2.3 Mechanical
The mechanical dimensions of the module are in conformance with the VXIbus specification Rev
1.4 for single slot size 'B' modules. The nominal dimensions are 233.35 (9.187 in) high x 160 mm
(6.299 in) deep. The module is designed for a mainframe with 20.32 mm (0.8 in) spacing between
slots. As required by the VXI bus specification, these dimensions are in accordance with those
given in the VME bus specification (Rev. C.1).