Integration With Other Advanced Features - Analog Devices ADRV9005 Reference Manual

Reference Manual
FREQUENCY HOPPING

INTEGRATION WITH OTHER ADVANCED FEATURES

Frequency Hopping with MCS
The Frequency Hopping section describes frequency hopping (FH) with multichip synchronization (MCS).
Frequency Hopping with DPD
Frequency Regions
The ADRV9001 supports FH to work with digital predistortion (DPD). The ADRV9001 divides frequencies into 8 frequency regions. Specify
the start and end frequencies of 7 regions. There is one last region (8
frequencies. For example, for 6 regions, specify 5 regions and the rest are in the 8
DPD calculates its coefficients based on the specified regions. This means when transmitting on frequency within a certain region, DPD
operates only for that region. This includes capturing the data, calculating the coefficients, and lastly, updating the coefficients in the actuator.
To define frequency regions, provide the start and end frequencies in adi_adrv9001_DpdFhRegion.
typedef struct adi_adrv9001_DpdFhRegions
{
uint64_t startFrequency_Hz; //!< Carrier frequency greater than or equal to this is included in the
region
uint64_t endFrequency_Hz; //!< Carrier frequency less than this is included in the region
} adi_adrv9001_DpdFhRegions_t
Then configure the DPD frequency hopping regions in adi_adrv9001_dpd_fh_regions_Configure(), which takes an array of the frequency
regions.
int32_t adi_adrv9001_dpd_fh_regions_Configure(adi_adrv9001_Device_t *adrv9001,
adi_common_ChannelNumber_e channel,
adi_adrv9001_DpdFhRegions_t dpdFhRegions[],
uint32_t size);
analog.com
Figure 136. Rx1 PFIR Switching
th
region) to "catch all", which captures the remaining range of the
th
region.
ADRV9001
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