The Arbitrary Waveform Generator allows you to design custom waveforms on your personal computer and download them to the BNC 625A which generates them in real-time. Arbitrary Waveforms may either be designed with a graphical Windows-based design tool or be generated point-by-point in a variety of data formats from your own application software. A data generator program, example waveforms, and a downloading utility are included in this option.
The Model 625A generates every data point independent of repetition rate. Normally ARB's simply replace the sinewave lookup table used in the DDS system with arbitrary waveform datapoints. With this method waveform points are actually skipped as the rest as the rep rate is increased. Our unique design ensures you maintain the characteristics of your wave form.
The TTL/CMOS SYNC output can be independently controlled which lets you create a pattern of logic pulses along with your analog waveform. This output swings 0V to +5V and can be directly drive digital logic. It is useful for designing arbitrary digital waveforms or generating a triggering or synchronizing pulse along with the analog waveform.
The BNC 625A will receive and parse waveform data in a multitude of formats. No confusing protocols or headers are required, and the data may be separated by any non digit character (carriage returns, commas, tabs, spaces, etc.), which makes it easy to download data from a variety of application programs, spreadsheets, and sampling oscilloscopes.
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| Vertical Resolution: | 12 bits | |
| Sample Update Rate: | Variable from 0 Hz to 40 Msamples/s in 0.01 Hz steps. | |
| Sample Buffer Depth: | 32,768 datapoints | |
| Run Mode | Continuous or Internal/External Triggered | |
| Data Formats: | Floating Point, Decimal, Hexadecimal, Integer, Binary, .CSV and .PRN formats. |
The function generator offers a set of pre-stored waveforms which are generated using the Arbitrary Waveform hardware. The user may quickly select from many stored waveforms, and may also specify a repetition rate to 2 MHz. All functions may be generated on a continuous or triggered basis. A high going synchronizing pulse is a given on the SYNC Output at the start of each waveform.
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| Waveforms: | Positive ramp, Negative Ramp, Triangle, Positive Exponential, Inverted Positive Exponential, Negative Exponential, Inverted Negative Exponential, Random (noise) |
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| Repetition Rate: | 0 Hz to 2 MHz in 1 Hz steps, all functions | |
| Run Mode: | Continuous or Internal/External Triggered | |
| Output level: | 8 mVp-p to 20 Vp-p unloaded or 4mVp-p to 10Vp-p into 50 ohms |
The Pulse Generator allows the user to generate pulse waveforms with adjustable amplitude, offset, frequency and duty cycle. The pulse may be generated on a continuous or triggered basis.
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| Frequency: | 0 Hz to 2 MHz in 1 Hz steps | |
| Duty Cycle: | Variable 0% to 100% in 1%steps | |
| Output: | Variable in amp. and offset. A TTL/CMOS compatible Synch Out is simultaneously provided. |
| Audio | Video | |||
| Sound Cards, PC computer sound Stereo equipment developers Synthesizer applications Musical equipment developers |
Video compression algorithm development Video amplifiers and processing circuitry |
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| DSP | Power systems Engineering | |||
| Modem developers Voice Compression Video Compression Filter characterization Music Synthesis Noise analysis Correlated receivers |
Multi phase grid simulation Arbitrary waveform generation |
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| Telephony | Consumer Electronics | |||
| Modem development Voicemail & Answering Machine PBX Fax equipment Caller ID Basically any device connecting to a phone line |
Infrared Communications Ultrasonic products surity electronics, motion sensors, etc. Pager testing |
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| RF Engineering | Ham Radio Enthusiasts | |||
| IF amplifier testing AGC testing Filter characterization Precise Local Oscillator (LO) injection Demodulator testing and characterization Loran C product development Testing of messaging & packet radio receivers |
Autopatch Development SSB radio transmitter HF band radio transmitter SSB demodulator BFO Radio circuitry development and testing Packet radio implementation |
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| Digital Engineers | ||||
| Crystal replacement Clock Oscillator replacement Clock "dithering" Digital Phase Lock Loop (DPLL) testing Signal generation for sensor and digital I/O |
Medical
The Arbitrary Waveform Generator will simulate the outputs from biological and medical sensors. With a digital storage oscilloscope one can capture a sensed signal and download it for regeneration by the Model 625A. The various operating modes of the 625A provide many useful stimuli, gating, and timing signals for recording, monitoring, and testing functions.
Educational
The Model 625A provides AM, FM, SSB, FSK, and other signals for instruction and laboratory environments. The VCO, pulse and word generator, and DTMF modes are among the many useful functions for the classroom and teaching lab.

Application Specific Resources | Arbitrary Waveform Creation Software | PDF Comparison Chart of Signal Generators
• Extreme Value
• Drift Free
• Programmable
• Multiple Operating Systems
The BNC Model 625A (SG-100A/Telulex) represents a major breakthrough in price/performance for signal generation and signal measurements and analysis. This versatile device allows the engineer to access a broad range of operating modes such as arbitrary waveform, pulse, word/data integration, function, VCO, AM, FM, SSB, FSK, and burst.
Berkeley Nucleonics Corporation
2955 Kerner Blvd., San Rafael CA 94901 U.S.A
Phone: 800.234.7858 Fax: 415.453.9956
E-mail: info@berkeleynucleonics.com