Products > Test Equipment
New (toy?) DSO+LCR meter - Fnirsi DSO-TC2 (june 2022)
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coromonadalix:
must be like an universal programmer,  switching and level shifters if there is any ??
KungFuJosh:
I just received a DSO-TC3 today. I'm looking forward to playing with this new toy.
Rado123:
Any clues on what MCU is actually used?

We are looking for LQFP-100, at least 512k FLASH (the firmware update file is roughly 360k), USB and at least one fast ADC and a DAC.
Most likely an ARM Cortex  or maybe much less likely a RISC V.

Today I stumbled across a Chinese company I never heard about before (https://www.nationstech.com/). Their products are available at LCSC.
Line card (https://www.nationstech.com/uploadfile/file/20220407/1649311413763814.pdf)

N32G452VEL7 (2x ADC, no OPAMP)
N32G455VEL7 (4x ADC, 4x OPAMP)
N32G457VEL7 (4x ADC, 4x OPAMP, Ethernet)

My guess would be on that one : N32G455VEL7

datasheet: (https://www.nationstech.com/uploadfile/file/20220906/1662453066413965.pdf)
manual: (https://www.nationstech.com/uploadfile/file/20220906/1662453133922816.pdf)




KungFuJosh:
I bought the TC3 because I liked the TC1 transistor tester, and thought the extra toys were cute. Definitely a toy though.

I connected it to my scope and dmm, and the TC3 RMS is typically ~0.5V low. Sometimes only 30mV off, but usually closer to the .5V.

What I find goofy is the displayed values and the waveform don't make sense unless they're displaying it upside down. 🤷

The source is the AWG on the SDS2X04XP. 4Vpp set, 1kHz.
snapper:

--- Quote from: Rado123 ---We are looking for LQFP-100
--- End quote ---
if the manufacturer has remained true to his chip supplier i suspect something like this
(see DSO-TC2) but in the end only the price will be decisive!
https://www.mindmotion.com.cn/products/mm32mcu/mm32f/
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