Analog Devices ADRV9001 User Manual page 138

UG-1828
Parameter
changeGainIfThreshHigh
agcMode
resetOnRxon
resetOnRxonGainIndex
enableSyncPulseForGainCounter
enableFastRecoveryLoop
power
peak
extLna
Table 62. adi_adrv9001_PowerDetector_t Structure Definition
Parameter
powerEnableMeasurement
underRangeHighPowerThresh
underRangeLowPowerThresh
underRangeHighPowerGainStep
Recovery
underRangeLowPowerGainStep
Recovery
powerMeasurementDuration
Description
Applicable in both peak and peak and power detect modes.
0: Gain changes will wait for the expiry of the gain update
counter if a high threshold count has been exceeded on either
the APD or HB detector.
1: Gain changes will occur immediately when initiated by HB.
Gain changes initiated by the APD will wait for the gain update
to expire.
2: Gain changes will occur immediately when initiated by APD.
Gain changes initiated by HB will wait for the gain update to
expire.
3: Gain changes will occur immediately when initiated by APD
or HB detectors.
1: AGC in Peak AGC mode, power-based gain changes are
disabled.
0: AGC in Peak and Power AGC mode where both Peak
Detectors and Power Detectors are utilized.
1: AGC state machine is reset when Rx is disabled. The AGC gain
setting will use the "resetOnRxonGainIndex" after resuming the
operation.
0: AGC state machine maintains its state when Rx is disabled
and the last AGC gain index will be used after resuming the
operation.
The AGC index to start with when "resetOnRxon" is set as 1.
1: Allows synchronization of AGC Gain Update Counter to the
time-slot boundary. GPIO setup required.
0: AGC Gain Update Counter free runs.
1: Enables the fast recovery AGC functionality using the HB
overload detector. Only applicable in Peak Detect Mode.
0: AGC fast recovery is not enabled.
Structure containing all the power detector settings.
Structure containing all the peak detector settings.
Structure containing all external LNA settings
Description
1: Power Measurement block enabled.
0: Power Measurement block disabled.
Threshold (negative sign assumed) which defines the lower
boundary on the stable region of the power detect gain
control mode.
Offset (negative sign assumed) from
underRangeHighPowerThresh which defines the outer
boundary of the power based AGC convergence. Typically,
recovery would be set to be larger steps than when the
power measurement is less than this threshold.
The number of indices that the gain index pointer should be
increased (gain increase) in the event of the power
measurement being less than underRangeHighPowerThresh
but greater than underRangeLowPowerThresh.
The number of indices that the gain index pointer should be
increased (gain increase) in the event of the power
measurement being less than underRangeLowPowerThresh.
Number of IQ samples on which to perform the power
measurement. The number of samples corresponding to the
4-bit word is 8 × 2^(pmdMeasDuration[3:0]). This value must
be less than AGC Gain Update Counter.
Rev. PrA | Page 138 of 253
Preliminary Technical Data
Max
Min Value Value
0 3
0 1
0 1
183 255
0 1
0 1
N/A N/A
N/A N/A
N/A N/A
Max
Min
Value Value
0 1
0 127
0 15
0 31
0 31
0 31
Default
Value
3
1
0
255
0
0
N/A
N/A
N/A
Default
Value
1
10
4
2
4
10