Arbitrary waveform generators get frequency upgrade

1st December 2014

B&K Precision

Mick Elliott

0 0

Datasheet

B&K Precision has upgraded its 4075B Series of arbitrary/function waveform generators with higher frequency ranges, increased arbitrary memory, and a colour LCD. The new 4075B Series offers six new models that directly replace the previous 4075 line with single- and dual-channel 30 MHz (4075B/4078B) and 50 MHz models (4076B/4079B) along with two additional single- and dual-channel 80 MHz models (4077B/4080B).

Each model can generate arbitrary waveforms with 14-bit amplitude resolution, 200 MSa/s sample rate, and up to 16,000,000 points (depending on model). These instruments are ideal for use in electronic design, sensor simulation, and functional test.

Designed with a dual technology architecture, the 4075B Series combines the benefits of traditional DDS (direct digital synthesis) technology and a true AWG (arbitrary waveform generator). DDS allows standard sine, square, and triangle waveforms to be generated with great frequency resolution at a low cost while the true AWG architecture implements custom arbitrary waveforms with a point-by-point design. This design significantly minimises jitter and improves signal integrity of the arbitrary waveform.

Similar to their predecessors, the new generators offer a menu-driven front panel keypad with rotary encoder knob and convenient range selection buttons to make adjustments quickly and easily. Additionally, all models provide multi-unit/channel synchronisation and external triggering capabilities. For precise triggering at specific points in an arbitrary waveform, users can benefit from the instrument’s fully programmable markers, which allow the unit to generate a positive TTL level signal at a specified waveform address.

The 4075B Series provides eight full memory banks per channel for user-defined arbitrary waveforms and 49 locations to store/recall instrument settings. Arbitrary waveforms can be created from the front panel or loaded using B&K’s free WaveXpress waveform editing software. WaveXpress is a comprehensive stand-alone application that offers several waveform editing tools for users to easily create and load complex arbitrary waveforms onto the AWG via the SCPI-compatible USBTMC or GPIB (50 MHz and 80 MHz models only) interface on the rear.

Other features of the 4075B Series include AM/FM/FSK modulation schemes, linear and logarithmic sweep, and built-in overvoltage and short circuit protection for resistive and capacitive loads on all inputs and outputs to prevent accidental damage to the instrument.