Model 525 | Six Channel Digital Delay/Pulse Generator
The Model 525 is a revolutionary, low-cost portable pulse/delay generator delivering full functionality in a compact, book-sized package (7.125″ × 5.1″ × 1.5″). It offers the highest channel density in its class without compromising performance. Key Features & Specs:
- 6 independent channels with individual output selection (trigger, gate, pulse)
- 20 MHz repetition rate
- 4 ns timing resolution (some sources note 2 ns)
- <50 ps RMS jitter
- Pulse width: 10 ns to 1000 s
- Delay range: up to 1000 s from trigger
- Modes per channel: Single Pulse, Continuous, Burst, Duty Cycle, Cycle Counting
- External trigger: up to 30 V peak, ≥20 ns width, rising/falling edge selectable
- USB-powered (laptop, charger, or battery pack) – ideal for mobile engineers
- PC-based Graphical User Interface (no bulky front panel) for reliable control
An excellent upgrade/replacement for the discontinued Picosecond Pulse Labs PSPL2600C, combining portability, multi-channel flexibility, and high precision for research, synchronization, and device triggering.
Features
- Number of Channels: 6 Independent Outputs
- Resolution: 4 ns
- Width / Delay Accuracy: 10 ns + 0.0001 x settings
- Channel to Channel Jitter: < 250 ps RMS
- Output Pulse Amplitude: TTL
- Power Source: Standard USB
Service Advantage
- In-Stock Same Day Shipping
- No-Risk Demo (14 Days)
- Warranty: Full 2 Year Warranty
- Integration Assistance, Full Customer Support (Phone or Web-Based)
Internal Rate Generator
Frequency (Period) Range
0.001Hz to 20MHz (1000s to 50ns)
Resolution & Accuracy
4 ns
Jitter
< 50 ps RMS
Burst / Duty Cycle Mode
1 to 1,000,000 pulses
Timebase
100 MHz, low jitter PLL
Oscillator
50 MHz, 50 ppm Crystal Oscillator
Pulse Control Modes
Internal Rate Generator, External Trigger / Gate
Systems Output Modes
Single, Continuous, Burst, Duty Cycle, Cycle Counts
Pulse & Period Counter
32 Bit
Synchronized Update Mode
Updates widths and delays on command
Pulse Delay Generation
Width / Delay Resolution
4 ns
Width Range
10 ns – 1000 s
Width Accuracy
10 ns + 0.0001 x (width + delay settings)
Delay Range
±1000 s
Delay Accuracy
5 ns + (0.0001 x delay setting)
Multiplexer
Any or all channels may be combined to any or all outputs.
Channel Output Modes
Single Shot, Normal, Burst, Duty Cycle
Channel Control Modes
Internally triggered or externally gated. Each channel may be independently set to any of the modes.
Jitter (Channel to Channel)
< 250 ps RMS
Shipping Dimensions
12x10x5″
Shipping Weight
5 lbs
Advanced Features
Channel Multiplexing
One of the unique features of the Berkeley Nucleonics pulse generators is the ability to combine the timing of any or all channels together and output them out of any of the output connectors. The multiplexing function (MUX) can be set through remote communications via a computer
Selectable Clock Reference
The Model 525 offers additional inputs and outputs for external clock synchronizing. User-selectable input and output reference frequency (10 MHz to 100MHz). Synchronize with the Mode Lock Oscillator of a laser or phase lock multiple units with one clock
Flexible Gating Options
The Model 525 is packed with gating options for almost any setup. You may gate individual channels or gate all. Gate immediately (output inhibit) or gate after a pulse (pulse inhibit)
External Trigger Options
Select channels for internal (free run) / external triggering. Triggered channels have flexible output choices: single pulse, burst at its clock rate, continuous pulse train or a series of on/off pulses (duty cycle)
Individual Rates
Each channel can have individual channel rates (either T0 or integer division of T0)
Use the convenient negative delay feature to reference one channel with respect to another channel in positive or negative time increments. By allowing a channel to reference another channel as its trigger, you can synchronize the channels with respect to each other.
Note: that Negative Delay cannot trigger a channel before your initial trigger. It is intended to complement the channel referencing option
525 GUI Main WIndow
Downloadable resources such as datasheets, firmware, software, drivers and products manuals. Alternatively, you can browse resources directly by visiting our downloads page.
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To check price and delivery, to place a Purchase Order, or to expedite an existing order, please call 415-453-9955, email info@berkeleynucleonics.com or fill out a Get a Quote form. Typical response time is less than 2 hours.
ur main headquarters is in California. Our address is 2955 Kerner Blvd, San Rafael CA 94901. We have sales offices throught the United States and in many European and Asian countries. We also have a nationwide network of approved trainers to handle product training and installation. Contact the factory at 415-453-9955 or info@berkeleynucleonics.com for your closest resource.
