 | 565 - delays and widths with each channel |  |
 | No longer is it necessary to combine two channels to achieve a delay and width. The 565 does this with one channel, effectively halving the number of channels you need for delay and gate applications. |
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| Maximum 555 pulse widths and delays vary with channel | |
| With the 555, there are not enough gates and fip-flops in the FPGA for the 8-channel version. Channels 4-8 have a 1.6 sec limitation. Channels 1 & 2 go out to 20 S. Channel 3 goes out to 13 S.
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| Minimum pulse width for external triggering |  |
| We use frontend circuitry that is on a chip. That chip requires a 15 ns wide pulse.
If you need more sensitivity, our 6040 needs a minimum of 100 mV for widths > 1ns. |
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| Synchronizing digital delay generators | |
| The 575's have Clock In/Out connectors that allow them to operate off a single clock. Each Clock Out may be connected to the Clock In of the next unit. It is important to keep the TTL-compatible waveforms as clean as possible in the transmission line en |
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| EPA | |
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| Random-rates using the PB-5's External Trigger | |
| The PB-5 can be externally triggered at random rates. Its internal rates are regular, repetitious intervals.
If you have our DB-2, random pulse generator, use its Trig Out as the trigger source. If you have another device that produces random rates, |
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| Why do I get the old settings after the first trigger ...then its OK | |
| When programming in a new configuration, the old configuration will reside in the instrument until one trigger occurs.
This happens because, configurations are reset at the end of a timing cycle. If you are externally triggering and programming afte |
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| Changing of the delay and width happens in realtime ie. no pauses | |
| There are no discontinuities in the pulse train when one changes width or delay. For those that cannot tolerate a pause in the pulse train, the 575 would be a solution. The changes can be via manual control or GPIB, RS232 or USB control. |
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| Changing of the delay and width happens in realtime ie. no pauses | |
| For those that require for discontinuities in the pulse train when changing delay or width, the 505 would be a solution. The delay and width changes can be manual or programmed. |
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| Jitter - Model 565 | |
| The jitter as it pertains to delays is a measure of the unpredictable occurence of a pulse's edge with respect to a reference point. In this case that reference point may be an external trigger or another channel. We have different numbers for each of t |
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| Calculating Model 507 Droop Specification | |
| If using a current source that employs a capacitor bank as the voltage supply, it is important to know how long a particular current amplitude can be sustained before the discharging of the capacitors diminishes the voltage supply to a point where the cur |
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| 10 nS Resolution in Model 505 | |
| Newer models of 505 are specified to have a resolution of 10 nS. This specification is not meant to infer that a value such as minimum pulse width or minimum pulse delay of 10 nS are achievable.
The minimum value selectable for pulse width or pulse de |
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| High Voltage Outputs (Model 202H / 310H) | |
| High Voltage Outputs with built-in circuit protection
BNC's high voltage modules for the 6040 modular pulse generator system have circuitry that protects for accidental shorts, voltage transients, high temperature, over-current and over-voltage condition |
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| Model 575 - How to generate a negative going pulses | |
| The 575 outputs positive voltage pulses only, but occasionally one needs a negative pulse for triggering devices. It is possible to invert the TTL/CMOS with an inverting pulse transformer. Pulse transformers will limit the pulse width. For easy mechani |
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