Hi EZ experts,
We have ADAR1000 EVB and [ADAR1000_MaxGain_SettingsFiles] from website.
There are some question about them.
1. 0x035 & 0x036
The registers control VM & VGA BIAS of TX & RX.
a) Why table 6 is different to [ADAR1000_MaxGain_SettingsFiles].
b) What the unit of the effect that we adjust each LSB in these regisrer?
2. 0x400 & 0x401
a) Which LDO(1.8 or 2.8 or both) do 0x400 effect? And how did it effect, i.e how much volt or percentage do each LSB effect?
b) In [ADAR1000_MaxGain_SettingsFiles] , why doesn't it need to set 0x401 to 0b10 before setting 0x400?
3. bit 7(SW_DRV_TR_MODE_SEL) of 0x030
It says [If 0, TR_SW_NEG is enabled, and if 1, TR_SW_POS is enabled.] in datasheet.
But we observed something just reverse, i.e. [TR_SW_NEG is enabled when SW_DRV_TR_MODE_SEL=1, and TR_SW_POS is enabled when SW_DRV_TR_MODE_SEL=1.]
4. Script review
We want to control T&R by using TR pin and we want ADAR1000 to bias ADTR1107.
Can we successfully to use the script as below to do so ?