bGoblin is born! We received the module from the fab today. This small module is composed of:

• A time-gain-control (or a VGA) to compensate for the ultrasound attenuation
• An enveloppe detector, to actually get the echoes
• An amp to better stretch the signal before it goes to the...
• 3Msps ADC

How does it work?

Which, in functional blocks, gives:

It works! Let's try it with a 3MHz burst:

Or, if we buff up the signal: with the gain control, to make it better "readable" with the ADC: