Preliminary Technical Data UG-1828
Rev. PrB | Page 97 of 277
HOP
Tx AFE
Rx AFE
t
RxRiseToAnaOn
24159-493
Figure 97. TxRiseToAnaOn
PLL Retune
In PLL retune mode, the time to the start of the Rx/Tx analog front end being powered up is the maximum of t
pllRetune
and t
chRiseToAnaOn
.
Note for the current release PLL retune time is still being characterized. This information will be updated in future releases.
24159-494
t
pllRetune
t
chRiseToAnaOn
DWELL
TRANSITION
PIN: HOP
CHANNEL
ANALOG POWER
Figure 98. PLL Retune
Table 40. PLL Retune Time (Limited Testing, as PLL Characterization is Still Ongoing)
Device Clock (MHz)
PLL Retune Time (µs)
Fast Normal
50 50 170
100 25 160
150 20 155
200 17 150
250 15 145
300 14 140
ADDITIONAL FREQUENCY HOPPING OPERATIONS
Rx Only with Long Propagation Delay
The ADRV9001 supports the scenario when Rx propagation delay is greater than the duration of a hop frame. This however is only
supported with Rx only modes. Tx only mode is described in the next section.
To achieve this, set the timing parameter, enableHoldDelay, to the propagation delay to keep the Rx datapath and interface alive after the
frame, or series of frames, on air has ended.
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