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Common Waveforms (zip 480KB)

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Press Release (PDF) | Press Release | Industry Comparison Chart | 645 Introduction (.ppt)

The BNC Model 645 50MHz Function/Arbitrary Waveform Generator delivers many advanced features and user modes than our previous models, with a price that is designed to meet tough economic constraints. New DDS+ technology embraces advancements in the semiconductor industry and leverages state-of-the-art components for both standard and complex functions. The resulting design is a box for every bench, far more capable than the ARBs and Function Generators of the past. We have even incorporated IP support, so a web browser can control the instrument over LAN.

The Model 645 has some significant advances over our 20MHz and 30MHz models. The speed, sample rates, and memory are expanded. The storage of custom waveforms is increased, and the tactile front panel controls are easy to manipulate. We understand the broad range of applications and can now provide you, our demanding customers, a product loaded with functionality and representing an excellent value. Start your 30 day trial today.

Pulse Generation

The Model 645 can generate variable-edge pulses at rates up to 10MHz. From the front panel or through remote communications, the user may vary the period, pulse width and amplitude. The pulse parameters may be stored in the unit or on your computer for later recall. If you have multiple units in your experiment, you may elect to save the setup and upload the pulse properties to multiple Model 645s. For adjustability and routing pulsing tests, see the flexible nature of the Model 645.

Custom Waveform Generation

Many research activities requiring a variety of custom pulses, the Model 645 allows users to generate complex custom waveforms on a computer and download the waveform properties into the ARB. The custom nature of the device lends itself well to R&D activities with a range of vaiable tests that need to be performed. The Model 645 offers 14-bit resolution and a 125 MSa/s sampling rate, giving users enough control of their waveforms for most applications. The Model 645 will storage of up to 5 waveforms concurrently ( 4 waveforms (4 x 256K points) in nonvolatile memory and 1 waveform in volatile memory.

Graph mode

In graph mode, user can easily visual verify the signal settings. Also, user can always see the selected function on the upper left corner of display.

Features

•  50MHz sine, 10MHz Arbitrary Waveform

•  14-bit, 125MSa/s, 256 K-point ARB

•  Pattern Generator (16 bits wide, 256K depth)

•  Pulse, Ramp, Triangle, Noise

•  AM, FM, PM (PSK), FSK & PWM Modulation

•  Linear & Logarithmic Sweeps

•  USB, LAN or GPIB Optional programming

•  wavePRO Waveform Creation, Editing and Importing

Applications

•  Nanotechnology, Automotive to Power Industry testing

•  Radar, Medical / Biomedical Simulations

•  Phase Sync'd signals for MEMS, gyro control

•  Count rate Simulation (linear or non-linear)

•  Throughput / Response Measurements

Key Specifications

•  50MHz ARB with 14 bit, 125M samples/sec, 256K memory

•  Display - Illustrates Active Waveform

•  Sync - Multiple units together, or to an external clock

•  Functions - Square Wave w/ 10nS Risetimes, ramps, triangles, pulses with adjustable edges to 10nS, noise to 20MHz

•  Standard Waveforms —Sine, Square, Ramp, Triangle, Pulse, Noise, DC

•  Built-In ARB Waveforms — Exponential Rise and Fall, Negative Ramp, Sin(x)/x, Cardiac

•  Total Harmonic Distortion —DC to 20kHz, 0.04%

•  Square Wave —1uHz to 25MHz

•  Modulation Modes - AM, Amplitude Modulation; FM, Frequency Modulation; PM, Phase Modulation; PWM, Pulse Width Modulation; FSK, Frequency Shift Keying

•  Pulse Mode Frequency—10MHz

•  Pulse Mode Width —10nS res

•  Arbitrary Mode Frequency — 1uHz to 10MHz

•  Arbitrary Model Length — 2 to 256K

BNC Waveform Editing Software: WaveCrafter

BNC WaveCrafter allows users to create, edit and download complex waveforms into their Model 645 quickly and efficiently. Storage of complex waveforms can be done on the PC, or emailed among colleagues. In addition, users can retrieve waveforms from a number of Digital and Mixed-Signal Oscilloscope (such as the Agilent MSO 8104) using WaveCrafter in capture mode.

Data Transmission via Pattern Out

The Model 645 offers users the ability to create and store 16-bit data for later retrieval. The data can be transmitted via a “Pattern Out” from the Model 645 rear panel as a source of control signals for your experiment.

User Friendly Operation

The front-panel operation of the Model 645 is simple and user friendly. Users can enter setup parameters and access all functions with no more than two button presses. The knob and convenient numeric keypad allow fast setting of frequency, amplitude, offset and other parameters. You may enter voltage values in Vpp, Vrms, dBm or high & low levels. Timing parameters can be entered in Hertz (Hz) or seconds.

Easy-to-use Functions

Users can easily use the following functions.

• Internal modulations of AM, FM, PM (PSK), FSK & PWM for waveform adjustment.
• Built-in linear and logarithmic sweeps from 1ms to 500 s.
• The burst mode has a selectable number of cycles per period of time.
• Using remote control via USB, LAN or Opt. GPIB interface.
• The programmability by SCPI commands under the remote control connection.
• Precise phase adjustments and calibrations can be done from the front panel or via a PC.

Sync to External Clock

The Model 645 includes an external frequency reference which allows users to synchronize to an external clock at rates up to 10 MHz. Users may choose to sync to another Model 645, or any other device in their test setup

Optical Encoder

Rather than a traditional mechanical rotary encoder which begins to fail at 25,000 turns, our optically coupled rotary encoder has a life cycle of 1,000,000 turns. Long term reliability is in every detail.