Difference between revisions of "Hantek DSO-2250"
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The [http://www.hantek.com.cn/english/produce_list.asp?unid=62 Hantek DSO-2250] is an inexpensive USB-based oscilloscope. It has 2 channels, an analog bandwidth of 100MHz and 250MS/s sampling rate. | The [http://www.hantek.com.cn/english/produce_list.asp?unid=62 Hantek DSO-2250] is an inexpensive USB-based oscilloscope. It has 2 channels, an analog bandwidth of 100MHz and 250MS/s sampling rate. | ||
See [[Hantek DSO- | See [[Hantek DSO-2250/Info]] for more details (such as '''lsusb -vvv''' output) about the device. | ||
For more information about the devices in Hantek's USB oscilloscope devices, see [[Hantek DSO-2xxx/52xx]]. | For more information about the devices in Hantek's USB oscilloscope devices, see [[Hantek DSO-2xxx/52xx]]. | ||
Revision as of 03:16, 12 March 2013
The Hantek DSO-2250 is an inexpensive USB-based oscilloscope. It has 2 channels, an analog bandwidth of 100MHz and 250MS/s sampling rate.
See Hantek DSO-2250/Info for more details (such as lsusb -vvv output) about the device.
For more information about the devices in Hantek's USB oscilloscope devices, see Hantek DSO-2xxx/52xx.
Hardware
- Xilinx XC95288XL CPLD
- 50 MHz oscillator
- 2 x ISSI IS61LV256 (32K SRAM)
- 2 x HEF4052B (dual 4-channel analog mux/demux)
- Cypress CY7C68013a (FX2)
- Microchip 24LC02B (2K EEPROM for the FX2)
- Calogic SST5912 (N-Channel Monolithic JFET)
Input stage:
Per channel:
- HEF4052B (dual 4-channel analog mux/demux)
- Calogic SST5912 (N-Channel Monolithic JFET)
- 3 x Forward Relay PL-5 (relays)
Photos
Hantek DSO-2090
Probe connectors
USB and calibration points
PCB
PCB back
Xilinx CPLD
Analog mux/demux
JFET switch
Cypress FX2 USB interface
FX2 EEPROM
Mux 2
RAM
Input stage
Protocol
See Hantek_DSO-2xxx/52xx#Protocol.
Extracting the firmware
See Hantek_DSO-2xxx/52xx#Extracting_the_firmware.
Resources
TODO.