Model 577 | 0.001 Hz to 20 MHzDigital Delay / Pulse Generator

The Berkeley Nucleonics Model 577 is the latest model in a series of pulse/delay generators with industry-leading precision, rich feature sets and a multitude of user-friendly form factors. This benchtop model offers 4 or 8 independent outputs that are designed to provide cutting-edge features, precision time and amplitude domain control and cost-effective overall system costs. Our pulse/delay generators synchronize multiple pulses for a wide range of applications, and offer a host of optical/electrical input and output options. The delay and pulse width for each channel is independent and digitally controlled which makes the instrument ideal for situations that require synchronizing several different events, bursts and nested bursts, and different channel operating modes. 

MODEL 577 Graphical User Interface

Model 577 DIGITAL DELAY GENERATOR CONFIGURATOR

Frequency Range: 4 Channels
8 Channels
Channel A and B: [-AT20] TTL (Hi-Z) / 2 - 20V Adj (Hi-Z) - Standard Configuration
[-TZ50] TTL (50Ω) / 2 - 20V Adj (Hi-Z) 
[-AT35] TTL (Hi-Z) / 5 - 35V Adj (50Ω)
[-TZ35] TTL (50Ω) / 5 - 35V Adj (50Ω)
[-AT45] 4 - 45V Adjustable (Hi-Z / 50Ω)
[-L82] 820nm Optical Output (720nm to 830nm)
[-L130] 1300nm Optical Output (1200nm to 1650nm)
Channel C and D: [-AT20] TTL (Hi-Z) / 2 - 20V Adj (Hi-Z) - Standard Configuration
[-TZ50] TTL (50Ω) / 2 - 20V Adj (Hi-Z)
[-AT35] TTL (Hi-Z) / 5 - 35V Adj (50Ω)
[-TZ35] TTL (50Ω) / 5 - 35V Adj (50Ω)
[-AT45] 4 - 45V Adjustable ( Hi-Z / 50Ω)
[-L82] 820nm Optical Output (720nm to 830nm)
[-L130] 1300nm Optical Output (1200nm to 1650nm)
Channel E and F: [-AT20] TTL (Hi-Z) / 2 - 20V Adj (Hi-Z) - Standard Configuration
[-TZ50] TTL (50Ω) / 2 - 20V Adj (Hi-Z)
[-AT35] TTL (Hi-Z) / 5 - 35V Adj (50Ω)
[-TZ35] TTL (50Ω) / 3 - 35V Adj (50Ω)
[-L82] 820nm Optical Output (720nm to 830nm)
[-L130] 1300nm Optical Output (1200nm to 1650nm)
Channel G and H: [-AT20] TTL (Hi-Z) / 2 - 20V Adj (Hi-Z) - Standard Configuration
[-TZ50] TTL (50Ω) / 2 - 20V Adj (Hi-Z)
[-AT35] TTL (Hi-Z) / 5 - 35V Adj (50Ω)
[-TZ35] TTL (50Ω) / 5 - 35V Adj (50Ω)
[-L82] 820nm Optical Output (720nm to 830nm)
[-L130] 1300nm Optical Output (1200nm to 1650nm)
Trigger Gate Input Type: [-IA15] Electrical 15V Adj. Threshold - Standard Configuration
[-IL82] 820nm Optical Input
[-IL130] 1300nm Optical Input
System Option: [-DT15] Add Dual Trigger Input
[-COM] Add LAN and GPIB Port
[-US] 115V North American Power Cord
[-EU] 230V European Power Cord
Model 577-4C-AT20-AT20-IA15-S-US
DC to 20 MHz DDG, 4 Channel, TTL/20V Adj, TTL/20V Adj, Electrical Trigger Input, RS232 & USB, North Am Power Cord

Overview

Overview 

Quick Specs

Service Features

  • Channels: 4 or 8 Independent Channel Outputs
  • Resolution: 250 ps
  • Accuracy: 1 ns +.0001 x setpoint
  • RMS Jitter: < 50 ps (channel to channel)
  • Voltage: 5V Peak for TTL, 45V Peak for Adjustable.
  • Pulse Width: 10 ns - 1000 s
  • Memory: 12 Storage Slots
  • Warranty: Full 3 Year Warranty
  • Integration Assistance, Full Customer Support (Phone or Web-Based)
  • Lifetime No-Cost Firmware upgrades

Features

Channel Multiplexing

One of the more 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 BNCs. The multiplexing function (MUX) can be set through remote communications via a computer or from the front panel of most units.

Selectable Clock Reference

The Model 577 offers additional inputs and outputs for external clock synchronizing. Specify your input/output reference frequency (10 MHz to 100 MHz). Synchronize with the Mode Lock Oscillator of a laser or phase lock multiple units with one clock.

Flexible Gating Options

The Model 577 is packed with gating options for almost any setup. You may gate with a channel or on any input. 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/external triggering, or free-run. 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). Contact us for custom wave trains or modes.

Individual Rates

Each channel can have individual channel rates (either T0 or any of the other channels...).

Auto-Save

Forgot to save your settings? The Model 577 stores your setup configurations while powering down. Recall is automatic on power-up.

Dual Input Panel Connectors

The Model 577 offers two inputs for triggering or gating. You may specify electrical or optical input signals, and configure any trigger/gate combination. Use Trigger #2 to disable a triggered pulse train.

Front Panel High Voltage

Our modular architecture offers expanded functionality on user-selected front panel outputs. We offer a front panel High Voltage option (adjustable from 35V, 200 mV steps) on 2, 4, 6, or all 8 channels.

Front Panel Optical

Many applications benefit from optical signals. For noisy environments or communications applications, we offer an LED output stage at the front panel. This modular option can be configured for 2, 4, 6, or 8 outputs at 820nm or 1300nm.

Combined Output Types

The outputs are configured in modules and output types are combined in pairs. Thus one may select optical, standard electrical, or high voltage electrical in pairs for their instrument. For example, an 8-channel unit may have optical, standard electrical, and high voltage outputs all on one instrument. Custom or additional output modules may be added as the need arises. See our helpful Order Chart for all option configurations.

Field Programmability

The instrument can now have functions upgraded in the field, such as a special or custom feature upgrade via a fully programmable FPGA.

Custom Output Modes

Custom Modules such as the TZ-50 give users an expanded list of capabilities with the Model 577. One example is our TZ50 option, which provides customers a TTL signal into 50 Ω expanded.

Negative Delay

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: The Negative Delay cannot trigger a channel before your initial trigger. It is intended to complement the channel referencing option.

Specifications 
Base Model Number of Channel
577-4C
577-8C
4 Independent Output Channels
8 Independent Output Channels

INTERNAL RATE GENERATOR

Rate (T0 period) 0.001 Hz to 20.000 MHz (1000 s – 50 ns)
Resolution 5 ns
Accuracy 5 ns + (0.0001 x period)
T0 Period Jitter < 50 ps RMS
Time Base 200 MHz, low jitter PLL
Oscillator 50 MHz, 50 ppm crystal oscillator
System Output Modes Single, Normal, Burst, Duty Cycle, External Gate/Trigger
Burst Mode 1 to 10,000,000 pulses
Duty Cycle Mode 1 to 10,000,000 pulses ON and/or OFF
Pulse Control Modes Internally triggered, externally triggered or external gate.

TIMING GENERATOR

Pulse Width Range 10 ns -1000 s
Width Accuracy 1 ns + 0.0001 x width setting
Width Resolution 250 ps
Pulse Delay Range 0 - 1000s
Delay Accuracy 1 ns + 0.0001 x delay setting
Delay Resolution 250 ps
Jitter (channel to channel) < 50ps RMS
Output Multiplexer Any/all channels may be OR’d to any/all outputs.
Time Base Same as the internal rate generator
Channel Output Modes Single, Normal, Burst, Duty Cycle
Burst Mode 1 to 10,000,000 pulses
Duty Cycle Mode 1 to 10,000,000 pulses ON and/or OFF
Wait Counts 1 to 10,000,000 pulses
Channel Control Modes Internally triggered or external gated. Each channel may be independently set to either mode.

OUTPUT MODULE (AT20)

TTL/CMOS Mode 
Output/Source Impedance High Impedance
Output Level 4.0 V (typical) into 1 kΩ
Rise Time (10% - 90%) < 3ns  (1.5ns typical)
Jitter < 50 ps RMS channel to channel
Adjustable Mode
Output Level 2 V to 20 VDC into 1 kΩ or 1 V to 10 VDC into 50 Ω
Amplitude Resolution 10 mV
Current 200 mA typical, 400 mA (short pulses)
Rise Time (10% - 90%) 15 ns (typical) @ 20V into Hi-Z (25 ns typ @ 10V into 50 Ω)
Slew Rate > 0.1V/ns
Overshoot < 1 V + 10% of pulse amplitude

INPUT MODULE (IA15) 

Trigger Input
Function Generate individual pulses, start a burst or continuous stream
Rate DC to 1/ (200 ns + longest active pulse). Maximum of 5 MHz
Slope Rising or Falling
Threshold 200 mV to 15 VDC
Maximum Input 60 V Peak
Resolution 10 mV
Trigger Accuracy ±3% of Threshold Voltage
Impedance 5.3 kΩ + 40pF
Trigger Jitter < 800 ps RMS
Insertion Delay < 110 ns
Minimum Pulse Width 20 ns
Pulse Inhibit Delay < 150 ns RMS
Output Inhibit Delay < 100 ns RMS
Gate Input
Mode Pulse Inhibit or Output Inhibit
Polarity Active High or  Active Low

MEMORY and CONNECTIVITY

Memory Storage 16 Memory Location
USB USB 1.0 Standard
RS-232 DE-9F Connector using RS-232 Communications Standard
External Clock In 10 MHz – 100 MHz user selectable in discrete values
External Clock Out To or Ref out (10 to 100 MHz) user selectable in discrete values

PHYSICAL and ENVIRONMENTAL

Dimensions 10.5” x 8.25” x 5.5” [267 x 210 x 140mm]
Weight 8 lbs [3.6 kg]
Power 100 - 240 VAC 50/60 Hz <3 A
Fuse 3.15 A, 250 V Time-lag (Qty 2)
Operating Temp 32 - 104°F [0 - 40°C]
Transportation & Storage Temp -40 - 158°F [-40 - 70°C]

Shipping Dimensions 18x12x9"
Shipping Weight 10 lbs
Options 

Option L82 or Option L130 - Optical Outputs

Wavelength 820 nm or 1300 nm
Maximum Signal Rate 5 MBd
Maximum Link Dist. 1.5 km
Connector Type ST

Option TZ50 - TTL 50 Ω Output Impedance

TTL/CMOS Mode
Output Level 4.0 V typ into 50 Ω
Rise Time < 3 ns (2ns typical)
Slew Rate 0.5 V/ns
Jitter - Channel to Channel 50 ps RMS
Adjustable Mode
Output Level 2 V to 20 VDC into 1 kΩ or 1 V to 10 VDC into 50 Ω
Amplitude Resolution 10 mV
Current 200 mA typical, 400 mA (short pulses)
Rise Time (10% - 90%) 15 ns (typical) @ 20V into Hi-Z (25 ns typ @ 10V into 50 Ω)
Slew Rate > 0.1V/ns
Overshoot < 1 V + 10% of pulse amplitude

Option AT35 - 35V Adjustable Output

TTL/CMOS Mode
Output Level 4.0 V typ into Hi-Z
Rise Time < 3 ns (2ns typical)
Slew Rate 0.5 V/ns
Jitter - Channel to Channel 50 ps RMS
Adjustable Mode
Output Amplitude 5 V – 35 V into 50Ω load at 200 Hz
Resolution 10 mV
Rise Time (10% - 90%) < 30 ns
Accuracy 500 mV
Max. Frequency (Internal & External) 4 kHz 

Option TZ35 - TTL 50 Ω Output Impedance + 35V Adjustable Output 

TTL/CMOS Mode
Output Level 4.0V into 50 Ω (typ)
Rise Time < 3 ns (2ns typical)
Slew Rate 0.5 V/ns
Jitter - Channel to Channel 50 ps RMS
Adjustable Mode
Output Amplitude 5V – 35V into 50Ω load at 200 Hz
Resolution 10 mV
Rise Time (10% - 90%) < 30 ns
Accuracy 500 mV
Max. Frequency (Internal & External) 4 kHz 

Option AT45 - 45V High and Low Impedance

Amplitude 4V - 45V
Resolution 20 mV
Accuracy +/-1.5%
Rise Time (10%-90%) < 2ns into 50 Ω  (typ)
< 9ns into Hi-Z (typ)
Fall Time (90%-10%) < 9ns into 50 Ω (typ)
< 9ns into Hi-Z (typ)
Frequency (Internal & External) DC – 100 kHz
Overshoot < 35% Typical for Fast Rise Time
Polarity High Impedace Mode: Active High or Active Low
Low Impedance (50 Ω) Mode: Active High Only
Pulse Width Range High Impedance Mode: 10 ns to DC
Low Impedance (50Ω) Mode: 10 ns to 10 seconds
Max Current 35 mA (Hi-Z @10 ms width)
900 mA (50 Ω @ 10 ms width)

AT45 NOTE:
*   Due to the power consumption and heat restrictions, a maximum of four AT45 channels can be installed on a single unit
**  Deletes TTL and ADJUSTABLE mode selection and replaced by LOW and HIGH Impedance selection

Option IL82 or Option IL130 - Optical Inputs

Wavelength 820nm or 1300nm
Maximum Signal Rate 5 MBd
Maximum Link Dist. 1.5 km
Connector Type ST
Insertion Delay < 300 ns
Jitter < 1.4 ns RMS

System Options

Option Description
DT15 Dual Trigger. Enable Gate Input to act as second trigger
COM Extended Communications – Adds Ethernet & GPIB
EU Replace North American Cord with European Cord
Custom 577
Custom Model 577 with Channel G and H as Optical Outputs, and Optical Trigger and Gate Inputs

Accessories  
Part Number Description 
P/N6923 Model 577 19" Rack Mount
P/N6978 Model 577 19" Dual Rack Mount
Frequently Asked Questions (FAQ) 

Model 577 | Can I order special outputs on just some of my channels ? 

Model 577 | Can I order special outputs on just some of my channels ? 

Yes. The Model 577 is customizable using the 'Ordering Chart'. Select how many channels you would like for options such as high power outputs, optical isolation, impedance matching, etc. Channels are paired. 

Downloadable Resources 

Downloadable resources such as datasheets, firmware, software, drivers and products manuals. Alternatively, you can browse resources directly by visiting our downloads page.

Product Datasheets
Product Firmware
Product Software and Drivers
Product Manuals

Media

Media 
Video URL 
Video title 
BNC 577 Recall Default Settings
Video URL 
Video title 
BNC 577-8C Unboxing Review.
Video URL 
Video title 
577 8-Channel 250ps Resolution Pulse/Delay Generator: Review
Video URL 
Video title 
BNC Divide by Function for the Model 577 and Model 525
Video URL 
Video title 
Exploring the Model 577 Options

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