Open
Milestone
EDA-03850-V2
V2 of the analog eRTM15 PCB.
Unstarted Issues (open and unassigned)
1
Ongoing Issues (open and assigned)
2
Completed Issues (closed)
32
- dc/dc layout
- D12 and D13 not needed
- backplane LC filter needed?
- ltc6950 new loop filter values and placement
- ertm15: T6 output P11V_RF through a single via!
- eRTM15: double-check DC/DC noise.
- ad9910: external termination on SYNC_IN is not needed
- eRTM15: unable to have different frequencies on CLKA and CLKB over the backplane
- eRTM15: improvements on dc/dc noise
- eRTM15: L5_PWR
- ertm15: IC46 not needed
- ertm15: P11V_RF transistor and resistor
- eRTM15: redundant note on Front Panel sheet
- eRTM15: unclear notes on PLL
- ertm15: new OCXO DAC
- eRTM15: weird junction on IC10, pin 4, sheet 3
- eRTM15: remove 50/100Ω directive warning notes
- eRTM15: No copyright or license info
- ertm15: route LTC6950 LV/CM pin to FPGA GCLK for OCXO autodetection
- ertm15: UART pins swapped
- 10 MHz output impossible with 100 MHz OCXO
- eRTM15: difficulties soldering LMH2120
- eRTM15: IC25 stability issue with capacitive load
- eRTM15: suspicious voltage drop on D4A/D4B
- eRTM15: IC16 wrong output voltage setting
- eRTM15: OCXO DAC digital input voltages too low
- ertm15: CS pin unavailable in LTC2641 (IC9)
- ertm15: D5A can raise MP3V3 above 3.3V if IC19 drives Vdd
- eRTM15: two tmp100 sensors has the same i2c address (IC40 and IC49)
- eRTM15: TEMP2 I2C bus has to be bit banged
- ertm15: eeprom (with MAC) is too small to keep FRU information
- ertm15 schematics: i2c addresses are not shifted by 1 bit