PIC16F18446 FVR presnost interni reference

[Libor Konečný]

dekuji

este by me zajimalo, proc je ta presnost takova tragicka a k cemu se to 
da pouzit ?

Kdyz dam MCU na LDO, ktere ma vyssi presnost, pak postradam duvod vyuzit 
to FVR, nehlede na to, ze mohu pouzit externi reference 0.1% s cenou pod 
1 USD.


LK

Dne 13.03.2022 v 16:51 Robert Baranka napsal(a):
> page 650, 40.4.11 Fixed Voltage Reference (FVR) Specifications v 
> https://ww1.microchip.com/downloads/en/DeviceDoc/40001985B.pdf
>
> Table 40-17.
> Standard Operating Conditions (unless otherwise stated)
> Param No. Sym. Characteristic Min. Typ. † Max. Units Conditions
> FVR01 VFVR1 1x Gain (1.024V) -4 — +4 % VDD≥2.5V, -40°C to 85°C
> FVR02 VFVR2 2x Gain (2.048V) -4 — +4 % VDD≥2.5V, -40°C to 85°C
> FVR03 VFVR4 4x Gain (4.096V) -5 — +5 % VDD≥4.75V, -40°C to 85°C
> FVR04 TFVRST FVR Start-up Time — 60 — μs
>
> robo
>
> Dňa 13. 3. 2022 o 12:16 Libor Konečný napísal(a):
>> Zdravim
>>
>> Nema nekdo prosim informaci, jaka je presnost internich referenci FVR 
>> v PIC 16Fxxx?
>>
>> At hledam jak hledam, tak v PDF neni o tom zminka.
>>
>> Diky moc
>>
>> Libor
>>
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