SainSmart DDS120

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Revision as of 22:01, 15 March 2016 by Merbanan (talk | contribs) (Add SainSmart DDS120 usb info link)
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SainSmart DDS120

The SainSmart DDS120 is a USB-based, 2-channel oscilloscope with an analog bandwidth of 20MS/s and 48MS/s sampling rate.

See SainSmart DDS120/Info for more details (such as lsusb -v output) about the device.

or in newer hardware

  • AD: MXT2088 (datasheet)
  • Opamp: Analog devices AD8065 (OPAMP)
  • MUX: Texas Instruments CD4052B (2 x 1:4 MUX)

Photos

Vendor Protocol

Oscilloscope command bRequest value Notes
Set CH0 coupling 0x24 Possible values: 0x00, 0x08 (AC-coupling, DC-coupling).
Set CH1 coupling 0x25 Possible values: 0x20, 0x10 (AC-coupling, DC-coupling).
Set CH0 voltage range 0x22 Possible values: 0x08, 0x04, 0x00, 0x06, 0x02 (50mV, 100mV, 200mV, 500mV, 1-5V).
Set CH1 voltage range 0x23 Possible values: 0x20, 0x10, 0x00, 0x12, 0x02 (50mV, 100mV, 200mV, 500mV, 1-5V).
Set sampling rate 0x94 Possible values: 0x11, 0x01, 0x10 (240kHz, 2.4MHz, 48MHz).
Trigger oscilloscope 0x33 Possible values: 0x00 == start sampling.
Trigger oscilloscope 0x60 Possible values: 0x00 Generate sine wave.
Trigger oscilloscope 0x61 Possible values: 0x00 Generate triangle wave.
Trigger oscilloscope 0x62 Possible values: 0x00 Generate rectangle wave.

Resources