Difference between revisions of "Hantek DSO-2250"
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== Hardware == | == Hardware == | ||
* '''Main chip''': [http://www.xilinx.com/support/documentation/spartan-3an_data_sheets.htm Xilinx | * '''Main chip''': [http://www.xilinx.com/support/documentation/spartan-3an_data_sheets.htm Xilinx Spartan XC3S50AN] ([http://www.xilinx.com/support/documentation/data_sheets/ds557.pdf datasheet]) | ||
* '''Main | * '''Main oscillator''': 100MHz 100.000 YX NH | ||
* '''USB''': Cypress CY7C68013A-100AXC ( | * '''USB''': Cypress CY7C68013A-100AXC (FX2LP) | ||
* '''512K x 8 | * '''512K x 8 high-speed CMOS static RAM''': 2x [http://www.issi.com/products-asynchronous-sram.htm ISSI IS61LV5128AL-10TLI] ([http://www.issi.com/pdf/61LV5128AL.pdf datasheet]) | ||
* '''I2C EEPROM''': Microchip 24LC02BI (for the USB VID/PID of the Cypress | * '''I2C EEPROM''': Microchip 24LC02BI (for the USB VID/PID of the Cypress FX2LP) | ||
* '''Main | * '''Main power supply (3v3 to 1v2)?''' (near the 1kHz 2VPP signal gen): [http://www.ti.com/product/tps54286 TPS54286] ([http://www.ti.com/lit/gpn/tps54286 datasheet]) | ||
* | * '''Octal buffer / line driver for level shifting SRAM (U23)''': HC244SJ | ||
'''Input stage (per channel):''' | '''Input stage (per channel):''' | ||
* '''Quad/ | * '''Quad/dual, low-voltage, bidirectional RF video switch''': [http://www.maxim-ic.com/datasheet/index.mvp/id/1727 Maxim MAX4547] ([http://datasheets.maxim-ic.com/en/ds/MAX4545-MAX4547.pdf datasheet]) | ||
* Unknown (relay switch? U33) | * '''Unknown''': (relay switch? U33) | ||
* Unknown (second stage/signal clamping? U9) | * '''Unknown''': (second stage/signal clamping? U9) | ||
* | * '''Relay''': 3x [http://en.forward-relays.com/images/down/101.pdf Forward Relays PL-5] | ||
== Photos == | == Photos == | ||
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<gallery> | <gallery> | ||
File:Dso2250-case-top.jpg|<small>Hantek DSO-2250</small> | File:Dso2250-case-top.jpg|<small>Hantek DSO-2250</small> | ||
File:Dso2250-probe-inputs.jpg|<small>Probe | File:Dso2250-probe-inputs.jpg|<small>Probe inputs</small> | ||
File:Dso2250-case-rear.jpg|<small>USB | File:Dso2250-case-rear.jpg|<small>USB connect and 1kHz calibration</small> | ||
File:Dso2250-Xilinx.jpg|<small>Xilinx | File:Dso2250-Xilinx.jpg|<small>Xilinx Spartan XC3S50AN FPGA</small> | ||
File:Dso2250-RAM.jpg|<small>512Kx2 SRAM</small> | File:Dso2250-RAM.jpg|<small>512Kx2 SRAM</small> | ||
File:Dso2250-pcb-top.jpg|<small>DSO-2250 PCB top view</small> | File:Dso2250-pcb-top.jpg|<small>DSO-2250 PCB top view</small> | ||
| Line 35: | Line 35: | ||
File:Dso2250-ext channel.jpg|<small>External trigger channel, unknown (U12 and U20)</small> | File:Dso2250-ext channel.jpg|<small>External trigger channel, unknown (U12 and U20)</small> | ||
File:Dso2250-buffer.jpg|<small>Octal buffer/line driver for SRAM?</small> | File:Dso2250-buffer.jpg|<small>Octal buffer/line driver for SRAM?</small> | ||
File:Dso2250-unknown.jpg|<small> | File:Dso2250-unknown.jpg|<small>Unknown connect(P3) and unknown stage(U4 and U10)</small> | ||
File:Dso2250-capture-channel.jpg|<small>Input channel MAX4547(U7) ?(U9) ?(U33)</small> | File:Dso2250-capture-channel.jpg|<small>Input channel MAX4547(U7) ?(U9) ?(U33)</small> | ||
File:Dso2250-capture-channels.jpg|<small>Input channels front</small> | File:Dso2250-capture-channels.jpg|<small>Input channels front</small> | ||
File:Dso2250-Cypress.jpg|<small>FX2 and EEPROM</small> | File:Dso2250-Cypress.jpg|<small>FX2 and EEPROM</small> | ||
File:Dso2250-signal-gen.jpg|<small> | File:Dso2250-signal-gen.jpg|<small>1kHz 2VPP signal generation circuitry, Cypress main EEPROM (U807), 3V3? Supply TPS54286(U27)</small> | ||
File:Dso2250-unknown-connect.jpg|<small>Unknown connector</small> | |||
</gallery> | </gallery> | ||
Revision as of 16:27, 7 August 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 series, see Hantek DSO-2xxx/52xx.
Hardware
- Main chip: Xilinx Spartan XC3S50AN (datasheet)
- Main oscillator: 100MHz 100.000 YX NH
- USB: Cypress CY7C68013A-100AXC (FX2LP)
- 512K x 8 high-speed CMOS static RAM: 2x ISSI IS61LV5128AL-10TLI (datasheet)
- I2C EEPROM: Microchip 24LC02BI (for the USB VID/PID of the Cypress FX2LP)
- Main power supply (3v3 to 1v2)? (near the 1kHz 2VPP signal gen): TPS54286 (datasheet)
- Octal buffer / line driver for level shifting SRAM (U23): HC244SJ
Input stage (per channel):
- Quad/dual, low-voltage, bidirectional RF video switch: Maxim MAX4547 (datasheet)
- Unknown: (relay switch? U33)
- Unknown: (second stage/signal clamping? U9)
- Relay: 3x Forward Relays PL-5
Photos
Hantek DSO-2250
Probe inputs
USB connect and 1kHz calibration
Xilinx Spartan XC3S50AN FPGA
512Kx2 SRAM
DSO-2250 PCB top view
DSO-2250 PCB bottom view
Xilinx main oscillator
External trigger channel, unknown (U12 and U20)
Octal buffer/line driver for SRAM?
Unknown connect(P3) and unknown stage(U4 and U10)
Input channel MAX4547(U7) ?(U9) ?(U33)
Input channels front
FX2 and EEPROM
1kHz 2VPP signal generation circuitry, Cypress main EEPROM (U807), 3V3? Supply TPS54286(U27)
Unknown connector
Protocol
See Hantek_DSO-2xxx/52xx#Protocol.
Extracting the firmware
See Hantek_DSO-2xxx/52xx#Extracting_the_firmware.