Скачать или смотреть Livestream with Thomas Parry: analogue design with the open source ASIC tools

00:00 Intro
00:45 Zero to ASIC news: MPW2
01:20 Maximo did some rendering of the application
01:50 New vid on EMFI detector coming soon
02:20 Why analogue?
02:40 Previous interviews with Diego, Lakshmi & Thomas
03:10 Welcome to Thomas
04:55 Goal of Thomas' submission is a single chip solution for Satellite tx/rx
06:05 Goals for MPW2
07:45 Difference between MPW1 and MPW2 submission harnesses, more options for analogue
09:10 Caravan vs Caravel
10:20 Taking a look at his submission for MPW2: schematic
14:05 GDS showing DAC, LC oscillator & upconversion mixer
18:45 Demo of a simpler design using his flow
20:08 Makefile to setup environment
20:40 xschem schematic editor - opamp demo
25:00 symbol creation
25:54 testing
28:00 setting up AC simulation
30:00 running the simulation with ngspice
31:00 ngspice load times related to size of PDK
31:42 gaw to view waveforms
32:50 customisation of xschem, use Python to create Bode plots
34:18 running a transient response simulation
37:40 Python libraries: https://github.com/yrrapt/yaaade
42:00 Layout with Klayout
43:47 Generating the transistors using Magic VLSI tool
45:50 Importing into Klayout
47:30 Book recommendations: https://www.amazon.com/CMOS-Circuit-S...
49:10 Wiring, no ratsnest, have to work from the schematic and translate into the layout
51:30 pcell generator for vias
52:30 DRC in Klayout
54:55 scripts to run Magic's DRC and LVS
59:14 netgen used for LVS, same as the OpenLANE flow
1:00:20 circuit extraction with Magic: PEX
1:01:10 putting the PEX back into xschem and resimulating to check against design params
1:03:22 Q&A - EM simulation of passive components possible?
1:04:40 Thomas' perspective on job prospects with open source tooling?
1:06:40 Recap of workflow?
1:09:00 How to implement current sources and how to check them?
1:11:30 Can you simulate phase noise?


Satellite transceiver development repo: https://github.com/yrrapt/amsat_txrx_ic

Demo repo for Thomas' analogue flow: https://github.com/yrrapt/analogue_de...