Difference between revisions of "Hantek DSO-2250"
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== Hardware == | == Hardware == | ||
* Xilinx | * Xilinx SPARTAN XC3S50AN | ||
* | * 100 MHz oscillator | ||
* | * Cypress CY7C68013A (FX2) | ||
* 2 x | * 2 x ISSI IS61LV5128AL (512K SRAM) | ||
* | * Microchip 24LC0281 (FX2 EEPROM) | ||
MAX4547 Bidirection RF Video Switch | |||
54286 9CTG4 (1Khz 2VPP signal gen?) | |||
HC244SJ - octal buffer / line driver? | |||
'''Input stage:''' | '''Input stage:''' | ||
Revision as of 06:53, 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 SPARTAN XC3S50AN
- 100 MHz oscillator
- Cypress CY7C68013A (FX2)
- 2 x ISSI IS61LV5128AL (512K SRAM)
- Microchip 24LC0281 (FX2 EEPROM)
MAX4547 Bidirection RF Video Switch 54286 9CTG4 (1Khz 2VPP signal gen?) HC244SJ - octal buffer / line driver?
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.