Difference between revisions of "Velleman PCSGU250"

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* 3 x [http://www.ti.com/product/tps76601 Texas Instruments TPS766xx] voltage regulators (IC19=1V, IC20=2.5V, IC21=3.3V)
* 3 x [http://www.ti.com/product/tps76601 Texas Instruments TPS766xx] voltage regulators (IC19=1V, IC20=2.5V, IC21=3.3V)


'''Trigger Level'''
* [http://www.nxp.com/documents/data_sheet/74HC_HCT4051_Q100.pdf 74HCT4051D] 8-channel analog multiplexer/demultiplexer with 15 resistors, is that a R2R DAC??? I would guess this one is for the trigger level
'''Signal Generator'''
'''Signal Generator'''
* [http://www.ti.com/product/dac0800 DAC0800LCM] 8-Bit Digital-to-Analog Converter Settling Time 0.1 µs, does that mean max. 10Mhz Sample rate?
* [http://www.ti.com/product/dac0800 DAC0800LCM] 8-Bit Digital-to-Analog Converter Settling Time 0.1 µs, does that mean max. 10Mhz Sample rate?
* [http://www.nxp.com/documents/data_sheet/74HC_HCT4051_Q100.pdf 74HCT4051D] 8-channel analog multiplexer/demultiplexer with 15 resistors, is that a R2R DAC???
*[http://www.b-kainka.de/Daten/OPV/tl081crev1.pdf TL081C] JFET OPAMP
*[http://www.b-kainka.de/Daten/OPV/tl081crev1.pdf ����TL081C] JFET OPAMP
* [http://www.ti.com/product/lm6172 lm6172] Dual High Speed, Low Power, Low Distortion Voltage Feedback Amplifiers 100Mhz GBW
 
* [link name] exp


== FROM HERE ON ONLY COPY&PASTE, TO BE CORRECTED ==
== FROM HERE ON ONLY COPY&PASTE, TO BE CORRECTED ==

Revision as of 15:48, 30 July 2013

File:Velleman PCSU250.jpg
Velleman PCSU250

The [1] is an inexpensive USB-based oscilloscope. It has 2 channels, an analog bandwidth of 12MHz and 25MS/s sampling rate.

See Velleman PCSU250/Info for more details (such as lsusb -vvv output) about the device.

Hardware

Control logic

USB interface

  • inluded in the PIC



Analog frontend

Power

Trigger Level

  • 74HCT4051D 8-channel analog multiplexer/demultiplexer with 15 resistors, is that a R2R DAC??? I would guess this one is for the trigger level

Signal Generator

  • DAC0800LCM 8-Bit Digital-to-Analog Converter Settling Time 0.1 µs, does that mean max. 10Mhz Sample rate?
  • TL081C JFET OPAMP
  • lm6172 Dual High Speed, Low Power, Low Distortion Voltage Feedback Amplifiers 100Mhz GBW

FROM HERE ON ONLY COPY&PASTE, TO BE CORRECTED

Channel triggers

Photos

Protocol

TODO.

Resources