UNI-T UPO1204 200 MHz 4 channel digital oscilloscope teardown #ReverseEngineering
Kerry D. Wong performs a teardown of a UNI-T UPO1204 200 MHz 4 channel digital oscilloscope.
There are some minimal circuitry on the reverse side of the PCB but I could not fully remove the main PCB from the casing. Each channel has a COSMO Y214S solid state relay, a LMH6574 high speed video multiplexer and a LM6552 1.5 GHz high speed differential amplifier.
Each channel has a 74HC4094 shift register. Each channel also has a DAC, presumably it is used to set amplifier gains. The DAC used in channel 1 and channel 3 is LT2620, an octal 12-bit rail-to-rail DAC. And the DAC used in channel 2 and channel 4 is DAC7562, a dual 12-bit DAC.
The application processor is a MCIMX6Y2CVM08AB which features an Arm Cortex-A7 core.
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