53A-262 PROGRAMMABlE RATE GENERATOR/PACER CARD
ORDERING INFORMATION
53A-262 – Programmable Rate Generator/Pacer Card
OPT 1V – Add VXIbus Compatibility
53A-780 – Hooded Connector
• 5 pacer channels programmable from 0.1 msec to 999.99 msec in 0.1 msec steps
• 1-bit rate channel programmable from 400 msec to 3.999 msec in 400 msec steps
• Internal or external clock source
The 53A-262 Programmable Rate Generator/Pacer Card (PRG) allows the user to program up to five pacer channels and one-bit rate clock channel. Channels A through E of the PRG are used to provide a pulse train output from the front edge of the Card. The user programs the interval or period of the pulse train in 0.1 msec steps from 0.1 msec to 999.9 msec. Pacer outputs are useful for programming the rate of other CDSbus System cards, such as the 53A-260, and for providing external stimulus pulses to a unit under test.
The sixth channel, channel F, provides a TTL level square wave output {bit rate clock) whose period is programmable from 400 nsec to 3.999 msec in 400 nsec steps.
BITE
Seven LEDs provide Built-In-Test Equipment (“BITE”) for the Pacer Card.
Specifications
Configuration:
Five pacer channels.
One-bit rate clock channel.
Pacer Output:
Type Output TTL positive going pulse, 50 nsec wide.
Pulse Rate, programmable from 0.1 msec to 999.9 msec in 0.1 msec steps.
Output Drive, 10 standard TTL loads.
Bit Rate Clock Output:
Period, programmable from 400 nsec to 3.999 msec in 400 nsec steps.
Output Drive, 10 standard TTL loads.
Type Output Square Wave.
Bit Rate Clock Source (programmable):
Internal crystal oscillator or external clock input.
External Clock Input, TTL level, DC to 5 MHZ.
Type Input, TTL
Internal Clock. Crystal oscillator.
Long Term Drift, ±1 x 10^-6 yr, after 30 days.
Temperature Stability, ±50 x 10^-6 over the temperature range of 0°C to 50°C.
Programmed By: ASCII Characters.
Recommended Cable: 53A-780.
Available Option: OPT 1V, add VXIbus compatibility.
