Bnc model 645 manual

Storage of complex waveforms can be done on the PC or emailed among colleagues. The Model offers users the ability to create and store bit data for later retrieval. The front-panel operation of the Model 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. Timing parameters can be entered in Hertz Hz or seconds.

Rather than a traditional mechanical rotary encoder which begins to fail at 25, turns, our optically coupled rotary encoder has a life cycle of 1,, turns. Long term reliability is in every detail. This rear panel connector can be used to insert modulation signals onto a carrier. Price lists are available to our registered users. To view pricing for this and other products, please log in or create a free account. Sign In Register. Error message Deprecated function : The each function is deprecated.

Price List. Contact Us. Overview Overview. Key Specifications. Trigger prescaling enables the DG to be triggered synchronously with a much faster source, but at a sub-multiple of the original trigger frequency. For example, the DG can be triggered at 1 kHz, but synchronously with a mode locked laser running at 80 MHz, by prescaling the trigger input by 80, Furthermore, the DG also contains a separate prescaler for each front-panel output, enabling each output to operate at a sub-multiple of the trigger rate.

The T 0 output is asserted for the duration of the timing cycle. The leading edge of T 0 is the zero time reference. The programmed delays A, B, C, D, E, F, G and H are set from 0 s to s, with 5 ps resolution, to control the timing of the leading and trailing edges of the four pulse outputs.

Output amplitudes can be set from 0. Output transition times are less than 2 ns at any output amplitude. Optional rear-panel outputs are available to support diverse applications. Option 2 provides these same outputs but as 30 V, ns pulses with less than 5 ns transition times for timing distribution in high noise environments. Option 3 provides eight combinatorial outputs which deliver one to four pulses at 5 V logic levels with less than 1 ns transition times. The standard time base has an accuracy of 5 ppm, and a jitter of 10 -8 , which is suitable for many applications.

Optional timebases are available for users who require better rate and delay accuracy or reduced rate and delay jitter. For short delays the jitter is typically 20 ps. However, for a 1 s delay, the standard timebase can contribute up to 10 ns of jitter, while the optional timebases contribute less than 10 ps of additional jitter.

The DG front-panel outputs have transition times of less than 2 ns. The SRD1 is an accessory, built into an in-line BNC connector, which reduces the rise time of a front-panel output to less than ps. Up to five SRD1s can be attached to the front panel to reduce the rise time of all of the outputs. Give us a call, we are happy to discuss your applications. Custom Modules such as the TZ give users an expand list of capabilities with the Model Use the handy 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. Berkeley Nucleonics provides the option of having combinations of optical and electrical inputs and outputs.

For example, one may have an eight-channel unit with an electrical input and four optical and four electrical outputs. One may also order all optical inputs and outputs.