Analog Devices ADRV9001 User Manual page 301

Reference Manual
LDO CONFIGURATIONS
Table 124. Power-Saving Configuration for Each LDO (Continued)
Index LDO
5 GP_LDO_2
6 RX_2_LO_LDO
7 TX_2_LO_LDO
8 CLK_PLL_SYNTH_LDO
9 CLK_PLL_VCO_LDO
10 CLK_PLL_LP_SYNTH_LDO
11 CLK_PLL_LP_VCO_LDO
12 LO1_PLL_SYNTH_LDO
13 LO1_PLL_VCO_LDO
14 LO2_PLL_SYNTH_LDO
15 LO2_PLL_VCO_LDO
16 AUX_PLL_SYNTH_LDO
17 AUX_PLL_VCO_LDO
18 SRAM_LDO
Use the API function adi_adrv9001_powermanagement_Configure() to implement a device driver interface, allowing to set the ldoPowerSa-
vingsModes.
Configure the ldoPowerSavingModes struct in adi_adrv9001_PowerManagementSettings (GUI generated code sets all modes = 1) to
achieve the different power-saving configurations shown in
Configuration 0 is the default setup of the LDO array in the power management settings function, where all the LDOs are set to normal
operation (mode 1) as follows.
adi_adrv9001_PowerManagementSettings_t initialize_powerManagementSettings_35 = {
.ldoPowerSavingModes = { ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1 }
For example in Configuration 2 of
follows.
adi_adrv9001_PowerManagementSettings_t initialize_powerManagementSettings_35 = {
.ldoPowerSavingModes = { ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_5,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_5, ADI_ADRV9001_LDO_POWER_SAVING_MODE_5,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_5,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_5, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_2, ADI_ADRV9001_LDO_POWER_SAVING_MODE_2,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_2, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1,
ADI_ADRV9001_LDO_POWER_SAVING_MODE_1, ADI_ADRV9001_LDO_POWER_SAVING_MODE_1 }
In this case, it is still assumed that 2T/2R channels are being used. If the user application only uses Tx1 and Rx1, then set the LDOs for these
channels to a bypass or power-down mode along with hardware modifications. There is a relationship between the hardware power layout and
analog.com
Configuration 2
1
5
5
1
1
1
1
1
2
2
2
1
1
1
Figure
Figure 279, where some internal LDOs are bypassed and an external LO is supplied, the struct is set up as
Configuration 1
1
5
5
1
1
1
1
1
1
1
1
1
1
1
279.
ADRV9001
Configuration 0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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