We are using ADP2164 1.8V fixed voltage regulator. (R105 = DNP and R65 = 0ohm)
The same for the ADP1755 (fixed 1.3V regulator) R25=DNP and R66=0ohm.
I requested a footprint of ADP1707ACPZ-1.8-R7 from the request form.I waited. But I don't get a footprint yet.How should I do to get a footprint of ADP1707ACPZ-1.8-R7?
Give my best regards.
Hello,Most likely cause is that the FPGA digital interface (likely SPI CSB, SCLK, SDIO being out drivers) is operating with a supply that is greater than the 1.8 V DRVDD supply hence "sourcing" current into the ADM7171 device (which usually only has source…
I want to use the LT1763IS8-1.8 chip to convert +5V to 1.8V. The schematic and PCB are as follows, but in the actual circuit, the output of the 1-pin is measured by a multimeter to be 2.1V, and the +5V input is also reduced to 4.5V. Why, what should…
Hello everybody, I have been making the schematic for my own 1701 board (yay yay). But since I am not an engineer I am awfully afraid of making any mistake. So I chose BC857 as a 1.8 regulator transistor since it is small and has a huge beta. It seems…
Is it possible that the 3.3 is feeding back into the 1.8v rail before the 1.8V becomes active?
1) I would tie a schottkey diode from 1.8 to 3.3 to make sure the 1.8 never really exceeds the 3.3 rail
2) is it possible the 1.8 comes up before your 3.3…
Vdet and Vref pin voltages typically vary between -1.8 to +1.8 V.
Measure your voltage from GND to DVDD (1.8V) on your TB1 component.
I got the same error if this does not get any power.
Then measure the capacitors C54 and C56, these should be receiving the 1.8 Volts if they are connected.
The DVDD 1.8 Volts did…
Hello, at this moment I am working with these sensors.My question is the following:
- According to the technical data sheet, the output voltage is radiometric to 1.8 [V]. Then, the values delivered by the sensor range from -1.8 to 1.8 [V], where 0 equals…