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STANFORD RESEARCH DG535 Datasheet
Stanford Research Systems. The DG535 Digital Delay/Pulse Generator proves four precisely-timed logic transitions or two independent pulse outputs.
Source: www.testequipmenthq.com
Date Published: 9/25/2022
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MODEL DG535 Digital Delay / Pulse Generator – SLAC
The DG535 Digital Delay and Pulse Generator can prove four precisely timed logic transitions, or two precisely controlled pulses.
Source: www.slac.stanford.edu
Date Published: 3/30/2022
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Stanford Research Systems DG535 Function Gene… | ATEC
The Stanford Research Systems DG535 Digital Delay/Pulse Generator 4 Ch proves four precisely-timed logic transitions or two independent pulse outputs.
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DG535 – Stanford Research Systems Pulse Generators
Stanford Research Systems DG535 Overview … The DG535 Digital Delay and Pulse Generator proves four precisely-timed logic transitions or two independent pulse …
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Stanford Research DG535 Four Channel Digital Delay …
The DG535 is a very precise delay and pulse generator featuring four precision delays or two independent pulses with 5 ps resolution. These units all have a …
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Date Published: 10/27/2021
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Stanford Research SRS DG535 Digital Delay/Pulse Generator …
The high accuracy, low jitter, and we delay range make the DG535 eal for laser timing systems, automated testing, and precision pulse applications.
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Date Published: 1/3/2021
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- Author: sun752
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- Date Published: 2016. 3. 21.
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What is a digital delay pulse generator?
The DG535 Digital Delay and Pulse Generator provides four precisely-timed logic transitions or two independent pulse outputs. The delay resolution on all channels is 5 ps, and the channel-to-channel jitter is typically 50 ps.
What does a pulse generator do?
A pulse generator is either an electronic circuit or a piece of electronic test equipment used to generate rectangular pulses. Pulse generators are used primarily for working with digital circuits; related function generators are used primarily for analog circuits.
How do you delay a pulse circuit?
- after power up, keep output pin low for ~15 seconds.
- put output pin to high for ~5 seconds.
- finally, put it to low and keep it there forever.
What is pulse generator block diagram?
The block diagram of a pulse generator is shown in figure. The frequency control circuit controls the sum of the two currents from the current sources. It applies control voltages to the base of the current control transistors in the two current generators.
What frequency should a pulse generator be?
Explanation: the most effective frequency range for pulse generator for optimum efficiency and component size is 20khz.
What is the difference between pulse generator and signal generator?
A pulse generator is specialized, like an RF signal generator, but more aimed at digital circuits. It can generate pulses with variable transition times (can go much faster than a function generator) and a wide range of duty cycles (wider than some function generators).
Where is a pulse generator placed?
The pacemaker generator will be slipped under the skin through the incision (just below the collarbone) after the lead wire is attached to the generator. Generally, the generator will be placed on the nondominant side. (If you are right-handed, the device will be placed in your upper left chest.
What is pulse delay?
Abstract: It is proposed that pulse delay, in the presence of distortion, be defined as ∫TX(T) dT/∫X(T) dT where X(T) = ∫|m 1 (t – T)| 2 |m 2 (t)| 2 dt is the cross correlation of the squares of the magnitudes of the transmitted and received pulse modulation.
What is a pulse generator on a motorcycle?
“The pulse generator (5) reports the crankshaft position to the ECU (4). The ECU uses this signal to calculate the ignition point for each cylinder. Battery voltage is supplied to both ignition coils (6) via the emergency OFF switch, the ground is switched by the ECU.”
How do you use the pulse generator in Matlab?
The Pulse Generator block can emit scalar, vector, or matrix signals of any real data type. To emit a scalar signal, use scalars to specify the waveform parameters. To emit a vector or matrix signal, use vectors or matrices, respectively, to specify the waveform parameters.
What is a gate generator?
The Gate and Delay Generator is a device that generates variable logic pulses when incoming pulses triggers it. The output pulses can in turn be used as, for example, a gate for linear pulses from a spectroscopy amplifier (SA) entering an ADC/MCA.
Stanford Research Systems Pulse Generators
Stanford Research Systems DG535 Overview
The DG535 Digital Delay and Pulse Generator provides four precisely-timed logic transitions or two independent pulse outputs. The delay resolution on all channels is 5 ps, and the channel-to-channel jitter is less than 50 ps. Front-panel BNC outputs deliver TTL, ECL, NIM or variable level (-3 to +4 V) pulses into 50 W or high impedance loads. The high accuracy, low jitter, and wide delay range make the DG535 ideal for laser timing systems, automated testing, and precision pulse applications.
Digital Delay/Pulse Generator
DG535 Digital Delay Generator
The DG535 Digital Delay and Pulse Generator provides four precisely-timed logic transitions or two independent pulse outputs. The delay resolution on all channels is 5 ps, and the channel-to-channel jitter is typically 50 ps. Front-panel BNC outputs deliver TTL, ECL, NIM or variable level ( -3 to +4 V) pulses into 50 Ω or high impedance loads. The high accuracy, low jitter, and wide delay range make the DG535 ideal for laser timing systems, automated testing, and precision pulse applications.
Delay Outputs
There are four delay output channels: A, B, C and D. The logic transitions of these outputs can be delayed from an internal or external trigger by up to 1000 seconds in 5 ps increments. The T0 pulse, which marks the beginning of a timing cycle, is generated by the trigger signal. The insertion delay between an external trigger and the T0 pulse is about 85 ns.
Delays for each channel may be “linked” to T0 or any of the other delay channels. For instance, you can specify the delays of the four channels as:
A = T0 + 0.00125000
B = A + 0.00000005
C = T0 + 0.10000000
D = C + 0.00100000
In this case, when the A delay is changed, the B output will move with it. This is useful, for instance, when A and B specify a pulse and you want the pulse width to remain constant as the delay of the pulse is changed. Regardless of how the delay is specified, each delay output will stay asserted until 800 ns after all delays have timed out. The delays will then become unasserted, and the unit will be ready to begin a new timing cycle.
Pulse Outputs
In addition to the four delay outputs, there are four pulse output channels: AB, -AB , CD and -CD . The leading edge of the AB pulse coincides with the leading edge of the earlier of A or B, and the trailing edge of AB coincides with the leading edge of the later of B or A. For instance, in the previous example, a 50 ns pulse would appear at the AB output and a 1 ms pulse at CD. Pulses as short as 4 ns (FWHM) can be generated in this manner. The complementary outputs ( -AB and -CD ) provide a pulse with identical timing and inverted amplitude.
Output Amplitude Control
Each delay and pulse output has an independently adjustable offset and amplitude which can be set between -3 V and 4 V with 10 mV resolution. The maximum transition for each output is limited to 4 V. In addition, you can also separately select 50 Ω or high impedance termination for each output. Preset levels, corresponding to standard logic families, can also be selected. TTL, NIM and ECL levels can all be selected with a single key press.
Triggering
The DG535 can be triggered internally from 1 mHz to 1 MHz with four-digit frequency resolution. External, single-shot and burst mode triggers are also supported. For power control applications, the DG535 can be synchronized to the AC line. An optional trigger inhibit input allows you to enable or disable triggering with a TTL input signal.
±32 Volt Outputs
For applications requiring higher voltages, a rear-panel high voltage (±32 V) option is available. This option provides five rear-panel BNCs which output 1 µs pulses at the transition times of the front-panel T0, A, B, C and D outputs. The high voltage option does not affect the function or the timing of the front-panel outputs . The amplitude of the rear-panel outputs is approximately 8× the corresponding front-panel output, and the outputs are designed to drive 50 Ω loads. Since these outputs can only drive an average current of 0.8 mA, charging and discharging the cable capacitance may Be the most important current limiting factor to consider when using them (assuming a high impedance load). In this case, the average current is: I = 2Vtf/Z , where V is the pulse step size, t is the length of the cable in time (5 ns per meter for RG-58 ), f is the pulse repetition rate, and Z is the cable’s characteristic impedance (50 Ω for RG-58 ).
Internal or External Timebase
Both internal and external references may be used as the timebase for the DG535. The internal timebase can be either the standard 25 ppm crystal oscillator timebase, or the optional 1 ppm Temperature Compensated Crystal Oscillator (TCXO). The internal timebase is available as a 1 Vpp square wave on a rear-panel BNC . This output is capable of driving a 50 Ω load and can be used to provide a master timebase to other delay generators. Any external 10.0 MHz reference signal with a 1 Vpp amplitude can also be used as an external timebase.
Fast Rise & Fall Time Modules X Fast Rise & Fall Time Modules DG535
Fast Rise and Fall Time Modules
External in-line modules are available to reduce the rise or fall time of the DG535 outputs to 100 ps. These modules use step recovery diodes to speed up the rise time (option SRD1) or the fall time (option O4B). A bias tee (option O4C) allows these modules to be used with the optional rear-panel outputs to produce steps up to 15 V. For step amplitudes of less than 2.0 V, the fast transition time units should be attached directly to the front panel of the DG535.
Easy to Use, Easy to Program
All instrument functions can be accessed through a simple, intuitive, menu-based interface. Delays can be entered with the numeric keypad in either fixed-point or exponential notation, or by using the cursor keys to select and change individual digits. The backlit 20-character LCD display makes it easy to view delay settings in all lighting conditions.
The DG535 comes standard with a GPIB (IEEE-488) interface. All instrument functions can be queried and set via the interface. You can even display the characters the DG535 has received over the interface on the front-panel LCD display. This can be valuable when debugging programs which send commands to the instrument.
Pulse generator
A pulse signal generating circuit
Pulse generators in a physics laboratory
A pulse generator is either an electronic circuit or a piece of electronic test equipment used to generate rectangular pulses. Pulse generators are used primarily for working with digital circuits; related function generators are used primarily for analog circuits.
Bench pulse generators [ edit ]
Simple bench pulse generators usually allow control of the pulse repetition rate (frequency), pulse width, delay with respect to an internal or external trigger and the high- and low-voltage levels of the pulses. More sophisticated pulse generators may allow control over the rise time and fall time of the pulses. Pulse generators are available for generating output pulses having widths (duration) ranging from minutes to under 1 picosecond. Pulse generators are generally voltage sources, with true current pulse generators being available only from a few suppliers. Pulse generators may use digital techniques, analog techniques, or a combination of both techniques to form the output pulses. For example, the pulse repetition rate and duration may be digitally controlled but the pulse amplitude and rise and fall times may be determined by analog circuitry in the output stage of the pulse generator. With correct adjustment, pulse generators can also produce a 50% duty cycle square wave. Pulse generators are generally single-channel, providing one frequency, delay, width and output.
Optical pulse generators [ edit ]
Light pulse generators are the optical equivalent to electrical pulse generators with rep rate, delay, width and amplitude control. The output in this case is light, typically from a LED or laser diode.
A new family of pulse generators can produce multiple channels of independent widths and delays and independent outputs and polarities. Often called digital delay/pulse generators, the newest designs even offer differing repetition rates with each channel. These digital delay generators are useful in synchronizing, delaying, gating and triggering multiple devices, usually with respect to one event. One is also able to multiplex the timing of several channels onto one channel in order to trigger or even gate the same device multiple times.
A new class of pulse generator offers both multiple input trigger connections and multiple output connections. Multiple input triggers allow experimenters to synchronize both trigger events and data acquisition events using the same timing controller.
In general, generators for pulses with widths over a few microseconds employ digital counters for timing these pulses, while widths between approximately 1 nanosecond and several microseconds are typically generated by analog techniques such as RC (resistor-capacitor) networks or switched delay lines.
Microwave pulsers [ edit ]
Pulse generators capable of generating pulses with widths under approximately 100 picoseconds are often termed as “microwave pulsers” and typically generate these ultra-short pulses using Step recovery diode (SRD) or Nonlinear Transmission Line (NLTL) methods (for example [1]). Step Recovery Diode pulse generators are inexpensive, but typically require several volts of input drive level and have a moderately high level of random jitter (usually undesirable variation in the time at which successive pulses occur).
NLTL-based pulse generators generally have lower jitter, but are more complex to manufacture and do not suit integration in low-cost monolithic ICs. A new class of microwave pulse generation architecture, the RACE (Rapid Automatic Cascode Exchange) pulse generation circuit [2],[3], is implemented using low-cost monolithic IC technology and can produce pulses as short as 1 picosecond and repetition rates exceeding 30 billion pulses per second. These pulsers are typically used in military communications applications and low-power microwave transceiver ICs. Such pulsers, if driven by a continuous frequency clock, will act as microwave comb generators, having output frequency components at integer multiples of the pulse repetition rate, and extending to well over 100 gigahertz (for example [4][permanent dead link]).
Applications [ edit ]
Pulses can be injected into a device that is under test and used as a stimulus, clock signal, or analyzed as they progress through the device, confirming the proper operation of the device or pinpointing a fault in the device. Pulse generators are also used to drive devices such as switches, lasers and optical components, modulators, intensifiers, and resistive loads. The output of a pulse generator may also be used as the modulation signal for a signal generator. Non-electronic applications include those in material science, medical, physics, and chemistry.
Examples [ edit ]
Ballistics testing uses high voltage pulse generator [5]
“Signal cable selection for Veritas Observatory” with <200 ps risetime pulse generator [6] Single channel pulse generators were in existence in the 1950s [7] "Characterization of Permalloy films on high-bandwidth striplines" Journal of Magnetism and Magnetic Materials Volumes 272-276, Supplement 1, May 2004, Pages E1341-E1342 "Protoporphyrin IX Occurs Naturally in Colorectal Cancers and Their Metastases" [8] Testing Silicon Strip Detector with IR Light Pulse Generator [9]
Stanford Research DG535 Four Channel Digital Delay Generator, 1 MHz, 4 V
The DG535 is a very precise delay and pulse generator featuring four precision delays or two independent pulses with 5 ps resolution.
These units all have a standard GPIB Interface which was previously denoted as Option 01.
Stanford Research SRS DG535 Digital Delay/Pulse Generator w/GPIB + Opt. 02
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