MD1822 TC8220: Three Level High Speed В±100V 3.0A Pulser Demoboard
MD1822 TC8220: Three Level High Speed В±100V 3.0A Pulser Demoboard (MD1822DB3)
The MD1822DB3 is a demoboard for the three level ±100V2.5A pulser chip-set of the MD1822 MOSFET driver and theTC8220 MOSFET. The demoboard consists of one MD1822in the 3x3mm 16-lead QFN package driving the TC8220which has two pairs of high speed and high voltage complimentaryP- and N-MOSFETs in in one 4x4mm, 8-lead DFNpackage. This circuit is an ideal, cost-optimized, high voltageand high current RTZ ultrasound transmit pulser.The CPLD-programmable logic circuit (40 MHz crystal oscillator)generates accurately timed high-speed waveformson a separate CPL board. Multiple frequency and waveformcombinations can be selected as bipolar pulse waveforms.An external clock input can be used if the on-boardoscillator is disabled. The external trigger input can be usedto synchronize the output waveforms. There are five pushbuttons for selecting demonstration waveform, frequency,phase, and mode functions. Color LEDs indicate the demoselection states. Jumpers on the board can select either the330pF/2.5k on-board load, or user test loads.
Please download the user guide for more information.