Here’s a photo of the Spartan-6 LX45 FPGA on the DSO’s main board.
Spartan-6 FPGA detail from Uni-T Ultra Phosphor UPO2104CS DSO
(Photo courtesy of Dave Jones)
As with many DSOs that Dave Jones has torn down, the Spartan-7 FPGA manages the flow of captured data from the DSO’s 1Gsample/sec ADC and through the DSO’s sample memory. As a result, the scope can capture 30,000 waveforms/sec and it can capture as many as 65,000 waveform frames in its SDRAM capture buffer. In the image above, the length-matched signal lines emerging from the top of the Spartan-6 FPGA lead to the fast SRAM capture memory and the length-matched lines emerging from the bottom of the FPGA lead to the SDRAM waveform memory.
Here’s Jones’ 33-minute teardown video. The Spartan-6 FPGA appears at around 22:00 in the video.
Uni-T’s UPO2104CS DSO currently sells for $538.88 on Banggood.com.