I am using HMC920 to bias HMC863ALC4.
1)In HM920 what is the relation between VDD and VDIG?
2) Do I need to apply voltage to VDIG as below?
3) Is there a reference circuit for the connection of HMC920 and HMC863ALC4?
Hi Yufan, Mina,
You do not need to two anything for Vdig.
In order to set Vdrain=5.5V and Idd=350mA:
Vd= 6.2V, Vldocc=5.65V, Rsense = 390 Ohm and R10 = 16.1k Ohms.
have any update?
I have the same question. Does ADI has any update?
I'm confused by HMC920 datasheet. I can't find R1 & R3.
The datasheet is not easy to read and understand.
some question need to check again.
from the HMC920 datasheet, page17,
for Vldocc=5.65V, why R8 (i.e. R10) =16.1K ohm, NOT 18.2K ohm
from the HMC920 datasheet, page18,
for Idrain=350mA, why Rsense =390 ohm, NOT 470 ohm