UPB3 issueshttps://git.loetlabor-jena.de/yc/upb3/-/issues2021-08-01T12:24:38Zhttps://git.loetlabor-jena.de/yc/upb3/-/issues/8tuning range of TCXO is too large2021-08-01T12:24:38ZSebastian Weißtuning range of TCXO is too largetuning sensitivity with a one turn potentiometer RV1 is too high and the large tuning range isn't needed.
add 47k in series to C31 and add an 10k-10k voltage divider on this node to lower tuning range and sensitivitytuning sensitivity with a one turn potentiometer RV1 is too high and the large tuning range isn't needed.
add 47k in series to C31 and add an 10k-10k voltage divider on this node to lower tuning range and sensitivitySebastian WeißSebastian Weißhttps://git.loetlabor-jena.de/yc/upb3/-/issues/7document changes to UPB3 for use with LDC on top2021-08-01T10:08:35ZSebastian Weißdocument changes to UPB3 for use with LDC on topFor use with LDC the UPB3 board should connect the input voltage to Pin 2 of the CBPROG connector and two GPIOs to Pin 8 and 10 for frequency switchingFor use with LDC the UPB3 board should connect the input voltage to Pin 2 of the CBPROG connector and two GPIOs to Pin 8 and 10 for frequency switchingSebastian WeißSebastian Weißhttps://git.loetlabor-jena.de/yc/upb3/-/issues/6MCU memory is to small for all registers2021-08-01T10:21:11ZSebastian WeißMCU memory is to small for all registersAttiny104 replaced with C8051Attiny104 replaced with C8051Sebastian WeißSebastian Weißhttps://git.loetlabor-jena.de/yc/upb3/-/issues/5VDDS is grounded2021-08-01T00:58:06ZSebastian WeißVDDS is groundedPin 26 (VDDS) is grounded. This breaks LOL and LOS outputs.Pin 26 (VDDS) is grounded. This breaks LOL and LOS outputs.Sebastian WeißSebastian Weißhttps://git.loetlabor-jena.de/yc/upb3/-/issues/4wrong transformer symbol2021-08-01T00:56:55ZSebastian Weißwrong transformer symbolThe pin numbering of the 2:1 transformer symbol is wrong. Replace with `Line_Transformer_SP_1S_Small` from [DDSgen](https://git.loetlabor-jena.de/pnts/ddsgen/-/blob/master/ddsgen.kicad_sym)The pin numbering of the 2:1 transformer symbol is wrong. Replace with `Line_Transformer_SP_1S_Small` from [DDSgen](https://git.loetlabor-jena.de/pnts/ddsgen/-/blob/master/ddsgen.kicad_sym)Sebastian WeißSebastian Weißhttps://git.loetlabor-jena.de/yc/upb3/-/issues/3Wrong power connector type2021-08-01T00:53:15ZSebastian WeißWrong power connector typePower connector has wrong inner diameter, replace with PJ-002A.Power connector has wrong inner diameter, replace with PJ-002A.Sebastian WeißSebastian Weißhttps://git.loetlabor-jena.de/yc/upb3/-/issues/2Coaxial connectors are placed on the wrong side2021-08-01T00:51:20ZSebastian WeißCoaxial connectors are placed on the wrong sideAngled SMA connectors have a bad frequency response when soldered on the trace side. Flip the Connector or use edge mounted connectors.Angled SMA connectors have a bad frequency response when soldered on the trace side. Flip the Connector or use edge mounted connectors.Sebastian WeißSebastian Weißhttps://git.loetlabor-jena.de/yc/upb3/-/issues/1Wrong type of reference input buffer2021-08-01T00:49:22ZSebastian WeißWrong type of reference input bufferLTC6957-1 has LVPECL outputs but there is no proper termination implemented. Replace with LTC6957-2.LTC6957-1 has LVPECL outputs but there is no proper termination implemented. Replace with LTC6957-2.Sebastian WeißSebastian Weiß