THE PULSE OF THE FUTURE

PDG-2520 Four Channel Digital Pulse Generator w/Digital Delay
Sync (T0) Plus Four Independent, Digitally Controlled Outputs 0 to 99.9S Delay and Pulse Width Ranges With 25ns Resolution 3MHz Maximum Frequency (Internal Trigger), 5MHz (External Trigger) Store & Recall Up To 5 System Configurations Continuous, Single-Shot, External Trigger, Burst, Counted Burst, Pulse Count And Divide-By-N Modes
The PDG-2520 is a precision digital delay and pulse generator providing four output channels, each with independently adjustable delay and pulse width, plus a Sync (T0) output. The accuracy, precision and flexibility of the PDG-2520 makes it well suited for use in laser timing, automated testing and precision pulse applications. The PDG-2520s Sync (T0) output marks the beginning of a timing cycle, and is generated by the internal rate generator or in response to an external trigger. The delay and pulse width of the two outputs can be set from 0 to 99.9S relative to the T0 trigger with 25 ns resolution on its highest precision range. The PDG-2520 can be triggered internally from 100 millihertz to 3MHz. Three digit frequency resolution up to 1MHz, frequency accurate to 2% above 1MHz. External, single-shot (front panel push-button) and burst mode triggers are also supported. In external trigger mode, the maximum trigger frequency is 5MHz. Operating modes include continuous (pulse generator), pulse count, divide-by-N, burst and counted burst, providing flexible control of the pulse outputs. The output pulse waveforms may be inverted in all operating modes. Additionally, Output and Output 2 can be internally logically ANDed or ORed together as can Output 3 and Output 4. The PDG-2520 may be operated through its intuitive front panel controls. Up to five system configurations may be stored in internal non-volatile memory, providing instant recall of frequently-used configurations.
The PDG-2520s versatility, ease of use and Sync (T0) plus four independent outputs make it well suited for a wide variety of test and measurement tasks. It is also ideal for laser timing applications, in which the Sync (T0) output is used to trigger the pulsed laser and set the systems repetition frequency. Delayed Output 1 controls the laser Q-Switch, and Output 2, 3 and 4 can be used to synchronize other elements in the system, such as a detector or data acquisition hardware. Operating Modes: Generates pulses at the rate set by the internal frequency generator, or by an external trigger Pulse Count Mode Outputs pulses at the rate set by the internal frequency generator or external trigger and stops after N pulses Channel 1 & 3 operates in continuDivide By N ous mode, channel 2 & 4 pulses (Output-2 Mode) every Nth pulse of channel 1 & 3 Generates a burst of pulses, repeatBurst Mode ing at a set interval on channel 1. Provides user-control over the number of pulses in each burst, the frequency of the pulses within the burst, and the interval of the bursts Generates a burst of pulses, and Counted Burst stops after N bursts on channel 1 Mode Pulse Generator Mode
SPPDG-DIRECTED ENERGY, INC.
DIRECTED ENERGY INCORPORATED

SPECIFICATIONS

PARAMETER OUTPUTS Output Channels Delay Range Pulse Width Range Delay And Pulse Width Resolution Value Four (4) outputs, each with independent digitally controlled delay and pulse width 0 to 99.9 Seconds 25 Nanoseconds to 99.9 Seconds 25 Nanoseconds below 1 Microsecond 50 Nanoseconds from 1 Microsecond to 10 Microseconds 3 Digits Above 10 Microseconds 2% 120MHz Frequency Synthesizer 75 Nanoseconds <25 Nanoseconds <5 Nanoseconds <5% +4V into 50W BNC, Front Panel Continuous, Single-Shot, Burst, External Trigger, Divide By N, Pulse Count Single-Shot or 100 millihertz to 3MHz (Internal) Single-Shot to 5MHz (External Trigger) 3 Digits (<1MHz), 2 Digits (>1MHz) 25 PPM 2% 1 to 65,535 Pulses per Burst or Count Positive Edge Trigger TTL into 1K 1K 25ns BNC, Front Panel TTL output into 1 Meg, 4.5V into 50 BNC, Front Panel

Divide By N Mode: N=3

Accuracy (Delay and Pulse Width) Time Base Trigger Delay (External Trigger to SYNC (T0) Output Internal Throughput Delay (SYNC (T0) To Output 1 Or Output 2 Rising Edge) Output Rise & Fall Times (Into 50) Over/undershoot Amplitude Output Connectors INTERNAL RATE GENERATOR Modes Rate Resolution Accuracy (Continuous, Pulse Count, Output-2 Modes) Accuracy (Burst Mode) Burst and Pulse Count Mode EXTERNAL TRIGGER INPUT Type Input Amplitude Input Impedance Minimum Trigger Pulse Width Input Trigger Connector T0 (SYNC) OUTPUT T0 (Sync) Output Connector COMPUTER INTERFACE Interface Type Interface Connector GENERAL Internal Non-Volatile Storage Operating Temperature Range Cooling Requirements Input AC Power Dimensions (H X W X D) Weight

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

Pulse Generator Mode

Pulse Count Mode: Output 1 = 1 Counts, Output 2 = 2 Counts Output 3 = 3 Counts Output 4 = 4 Counts, Delayed 50s per channel
Optional GPIB or RS232 N/A 5 Configurations 0C to +40C Air cooled 90-264VAC, 47-63Hz, 28W Maximum 3 H x 8 W x 6 1/4 D (8.9cm H x 20.3cm W x 15.9cm D) 2 lbs. (.9kg) Approximate
Burst Mode Burst Freq: 100KHz, Packet Freq: 10KHz 2 S pulses Burst Count: 5 Packet Count: 3

P.W.B. Treated Plug Devices

P.W.B. Phono DigiPlus

P.W.B USB DigiPlus
P.W.B. Treated Phono - 3.5mm Stereo/Mono Plugs
One important reason for this series of successful devices is the result of our far greater understanding of a long standing problem that we have been aware of for a number of years. Most of our human senses have evolved, since the beginning of primitive life, to 'read' energy patterns that have a reference base at the earth's surface. Unfortunately for human beings, electrical energy at negative potential mimics the earth surface polarity. Negative electrical connections within electronic and electrical apparatus allow the human senses to 'read' varying electrical energy patterns within our modern environment and these energy patterns cause great confusion to the human senses. This is particularly so with modern digital pulse techniques. Whilst it is impossible to remove the negative pole from electrical equipment, we have developed techniques to 'bury' the negative pole by surrounding it with a ring of positive potential, thereby 'hiding' it from our senses. In practice, this is usually a simpler task to do than to describe. We might add that it is essential to first specially manipulate the components used in the devices. Nature's evolutionary progression has by now integrated the energy patterns of the innumerable infra-red pulses which are being continuously generated throughout the world with the digital information conducted along conventional copper, optical and radio pathways. Human beings are a product of their primitive evolutionary past and evolution progresses by adapting the past to create the present. A lot of primitive life forms adapted to occupy and defend a territorial space. In many cases, this developed into a need to occupy and defend a hole in the ground. Modern human beings contain, within their senses, remnants of an aversion to holes which have in their interior pulsing varying energy patterns - in particular electrical pulsing energy.
The problem created by all electrical sockets has recently been recognised in America, a country rapidly adapting a less rigid attitude to problems within audio equipment. American manufacturers are now introducing phono plug devices in an attempt to solve the 'phono socket' problem. To understand why such a device functions, it is necessary to look further than the narrow, dogmatic approach that has been previously adopted by the audio industry. It is necessary to explore how humans perceive sound and not only how transducers create it. For the P.W.B. Phono DigiPlus device, we have coupled two specially treated infra-red components in a face to face configuration that 'hide' their negative polarities, connected them to a treated phono plug device and when this device is plugged into any open socket, on any piece of electronic equipment, audio or video, the improvement on the ability to perceive audio or visual information within the room containing the electronic equipment, has to be experienced to be appreciated. Only one P.W.B. Phono DigiPlus device is required for any one piece of electronic equipment. Other unoccupied Phono and 3.5mm Mono/Stereo sockets in any Audio/video/computer equipment within any room should have a P.W.B. Treated Phono or 3.5mm stereo/mono Plug device inserted into other unoccupied sockets. It is now some years since we first introduced both the DigiPlus device and the P.W.B. treated Phono Plug device. Additional PWB treated plugs are now being introduced. Because the PWB USB DigiPlus device is intended to be inserted into an unused USB socket and left there, the USB DigiPlus device we supply has a low memory capacity. But higher memory PWB treated USB DigiPlus devices are available on request for those wishing to experiment with recordings and file transfer before listening.
The P.W.B. Phono DigiPlus device is identified by having a Green coloured Ring tie around the body of the phono plug. The Recommended Retail price of the P.W.B. Phono DigiPlus device is 45.00. The Recommended Retail price of the P.W.B. USB DigiPlus device is 40.00. The more items of audio and computer equipment that are treated within any room, the greater will be the effect on the perception of music within the listening room. The P.W.B. Treated Phono and 3.5mm Plug devices are identified by having a Black coloured Ring Tie around the body of the plug. The Rec. Retail price of a P.W.B. Treated Phono and 3.5mm Plug device is 15.00. Please specify either Mono or Stereo 3.5mm plug