# Regular Meeting (2020.8.24) 1. Test circuit for switch 2. Test ibert with optical moduld on VCU108(10 days) 3. Idea to reduce the reset rate of transceiver ## 1. Test circuit for switch I think that problem is caused by probe, as following experiment ### 1.0 Environment for test ### 1.0.1 Probes/Wires * Probes-1 (`p1`) * dual BNC-Crocodile_clip ![image alt](https://i.imgur.com/omWvQ5Z.png) * Probes-2 (`p2`) * single BNC-BNC ![image alt](https://i.imgur.com/D2wzNGS.png) * Oscillator(*osc*) * Sampling rate: 40 GHz * Bandwidth: 3.5 GHz * Function generator(*fn*) * Sample rate: 500 MHz * Bandwidth: 40 MHz * Voltage for this test * v_pp: 1v * v_offset: 1.5v * Wave: * sinusoid * square ### 1.1 Test 1 * Connect `p1` *osc* and *fn* * Frequency(*freq*): 1M Hz * *Osc* impedance: 1M ohm * **We 1st test switch is this condition** ![image alt](https://i.imgur.com/ZFa5Ep5.png) ### 1.2 Test 2 * Connect `p2` between *osc* and *fn* * Frequency(*freq*): 1M Hz * *Osc* impedance: 1M ohm ![image alt](https://i.imgur.com/FMas0GS.png) ## 2. Test ibert with optical moduld on VCU108(10 days) * Starting test from 8/14 afternoon * Shutting test result on 8/24 morning ![image alt](https://i.imgur.com/SOF7MSE.png) ## 3. Idea to reduce the reset rate of transceiver [link](https://hackmd.io/@BelleII-CDC-Trig-NTU-DeWei/rkuHAw_fw) ###### tags: `Regular Meeting` `DeWei`