Difference between revisions of "Hantek DSO-2250"
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| Line 14: | Line 14: | ||
* 2 x ISSI IS61LV5128AL (512K SRAM) | * 2 x ISSI IS61LV5128AL (512K SRAM) | ||
* Microchip 24LC0281 (FX2 EEPROM) | * Microchip 24LC0281 (FX2 EEPROM) | ||
54286 9CTG4 (near the 1Khz 2VPP signal gen) | |||
54286 9CTG4 (1Khz 2VPP signal gen | |||
HC244SJ - octal buffer / line driver? | HC244SJ - octal buffer / line driver? | ||
| Line 22: | Line 20: | ||
Per channel: | Per channel: | ||
* | * MAX4547 Bidirection RF Video Switch | ||
* 3 x [http://en.forward-relays.com/images/down/101.pdf Forward Relay PL-5] (relays) | * 3 x [http://en.forward-relays.com/images/down/101.pdf Forward Relay PL-5] (relays) | ||
Revision as of 05:56, 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)
54286 9CTG4 (near the 1Khz 2VPP signal gen) HC244SJ - octal buffer / line driver?
Input stage:
Per channel:
- MAX4547 Bidirection RF Video Switch
- 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.