# Regular Meeting (2022.7.18)

* Zybo-Z7
* FE-Fanout Board

## Zybo-Z7

Building image......

## FE-Fanout Board

* schedule
* Design: 
* Finished: [OPA2674ID](https://www.ti.com/lit/ds/symlink/opa2674.pdf), LDOs
* Stamp hole for OPA2674 and OPA3692 area
* Change desing opa2674: 1:8 -> (1:4)\*2
* Old: 
* New: 
* sim new with Rf=600ohm: 
* sim new with Rf=700ohm: 
* SMA as input(1), U.FL as output(8)
* Power connector: [Euro style terminal block](https://www.wcon.com/5mm-euro-terminal-block/2070.html) 2pin\*2 (GND/+5V, GND/-5V)
* Remained: [OPA3692ID](https://www.ti.com/lit/ds/symlink/opa3692.pdf)(fixed resistor/gain)
* Layout: This week
* Unit test for single component (with SMD-DIP Board)
* [MSOP](https://www.mouser.tw/ProductDetail/Chip-Quik/IPC0078?qs=gjT6naH6P5Jbla4MwzVsyg%3D%3D) we don't have
* Components have been purchased and we expect to receive them in the next or in two week
* OPA3692 \*10
* OPA2674 \*10
* U.FL connector \*40
* 2 LDOs: MPC1727, LT3015
* Does not purchas
* Wire (fanout to prototype or fanout to scope)~10 pcs, 2 choice:
* SMA(female) to u.fl(male)
* Needs transfer, maybe loss
* board -> u.fl -> sma -> sma -> bnc -> scope
* SMA is more reliable(higher lifetime)
* Also needs SMA(male) to u.fl(male) -> to prototype baord ~10 pcs
* u.fl(male) to u.fl(male)
* Scope: maybe use *probe* to measure
* just 10 pcs
###### tags: `Regular Meeting` `DeWei`