Difference between revisions of "Velleman PCSGU250"
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'''Analog frontend''' | '''Analog frontend''' | ||
* | * 4 x [http://www.goodsky.com.tw/telecomunication/28-sir SIR-S4-105A IZ] Goodsky 5V relay (2 per input channel) | ||
* 2 x [http://www.ti.com/product/opa2354 Texas Instruments OPA2354] op-amps | |||
* 2 x [http://www.ti.com/product/ | * 1 x [http://www.analog.com/static/imported-files/data_sheets/AD9288.pdf Analog Devices AD9288BST-40] Dual 8-bit 40MSPS A/D converters | ||
* | |||
'''Power''' | |||
* 3 x [http://www.ti.com/product/tps76601 Texas Instruments TPS766xx] voltage regulators (IC19=1V, IC20=2.5V, IC21=3.3V) | |||
'''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? | |||
* [link name] exp | |||
== FROM HERE ON ONLY COPY&PASTE, TO BE CORRECTED == | |||
'''Channel triggers''' | '''Channel triggers''' | ||
* [http://www.nxp.com/products/logic/buffers_inverters_drivers/74LVC07AD.html NXP 74LVC07AD] Hex non-inverting buffers | * [http://www.nxp.com/products/logic/buffers_inverters_drivers/74LVC07AD.html NXP 74LVC07AD] Hex non-inverting buffers | ||
* [http://www.ti.com/product/tlc5620 Texas Instruments TLC5620] 8-bit quad DAC | * [http://www.ti.com/product/tlc5620 Texas Instruments TLC5620] 8-bit quad DAC | ||
* [http://www.ti.com/product/tlc372 Texas Instruments TLC372] dual differential comparator | * [http://www.ti.com/product/tlc372 Texas Instruments TLC372] dual differential comparator | ||
== Photos == | == Photos == | ||
Revision as of 15:19, 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
- Xilinx XC3S50 50K-gate FPGA
- 50MHz crystal: 50.000 Y0KE (clock source for the Xilinx FPGA)
- Microchip PIC18LF2450-I/SP 8-bit microcontroller
USB interface
- inluded in the PIC
Analog frontend
- 4 x SIR-S4-105A IZ Goodsky 5V relay (2 per input channel)
- 2 x Texas Instruments OPA2354 op-amps
- 1 x Analog Devices AD9288BST-40 Dual 8-bit 40MSPS A/D converters
Power
- 3 x Texas Instruments TPS766xx voltage regulators (IC19=1V, IC20=2.5V, IC21=3.3V)
Signal Generator
- DAC0800LCM 8-Bit Digital-to-Analog Converter Settling Time 0.1 µs, does that mean max. 10Mhz Sample rate?
- [link name] exp
FROM HERE ON ONLY COPY&PASTE, TO BE CORRECTED
Channel triggers
- NXP 74LVC07AD Hex non-inverting buffers
- Texas Instruments TLC5620 8-bit quad DAC
- Texas Instruments TLC372 dual differential comparator
Photos
PCB, front
Protocol
TODO.
Resources
- The vendor software appears to have been written by Magnova Components.