UG-570
Control Output 3 (Gain Freeze)
If the gain is frozen, this signal is high. Else, it is low. Frozen
gain indicates that one or more bits have been set which will
prevent the gain from unlocking even if a case such as a peak
overload occurs. Gain only freezes after lock.
Control Output 2 (CH1 Digital Sat)
Normally low. If this signal is high that indicates that a digital
overload is occurring or has occurred. Once the signal is high,
the gain must change for it to transition low. If the gain changes
but the overload condition persists, the signal will still
transition and stay low while the
detectors in the reset state for a duration set by the Peak
Overload Wait Time. The signal then transitions high after the
peak detectors exit the reset state.
Control Output 1 (CH2 Digital Sat)
Same as Control Output 2 but applies to Rx2.
0x035 = 0x0D (Tx QUADRATURE AND RF DC
CALIBRATION STATUS)
Control Output 7 and Control Output 6 (CH1 Tx Quad Cal
Status[1:0])
These control outputs display the status of the Tx quadrature
calibration state machine, stepping through State 0 through
State 3 as the calibration runs. It returns to State 0 when the
calibration completes.
Control Output 5 (CH1 Tx Quad Cal Done)
Pulses high when the Tx Quad Cal finishes. The
clock rates determine the pulse duration. For the LTE 10 MHz
standard customer software profile, the signal pulses high for
approximately 480 ns.
Control Output 4 (RF DC Cal Busy)
This signal transitions high while the RF DC calibration runs,
then transitions low.
Control Output 3 and Control Output 2 (CH2 Tx Quad Cal
Status[1:0])
Same as Control Output 7 and Control Output 6 but applies to
Tx2.
Control Output 1 (CH2 Tx Quad Cal Done)
Same as Control Output 5 but applies to Tx2
0x035 = 0x0E (Rx QUADRATURE AND BB DC
CALIBRATION STATUS)
Control Output 4 (BB DC Cal Busy)
This signal is high when the BB DC calibration runs. If only the
BB DC calibration is run, then the signal will only be high once.
If an RF calibration only runs or if a BB DC calibration is run
followed by an RF DC calibration, the signal will be high for the
BB DC calibration and then it will pulse high again during the
RF DC calibration.
AD9361
holds the peak
AD9361
digital
Rev. A
0x035 = 0x0F (GAIN CONTROL)
Control Output 7 Through Control Output 5 (CH1 AGC
State[2:0])
See 0x035 = 0x07 Control Output 3 through Control Output 1.
Control Output 4 (CH1 Reset Peak Detect)
See 0x035 = 0x0C Control Output 6.
Control Output 3 (CH2 Reset Peak Detect)
See 0x035 = 0x0C Control Output 4.
Control Output 2 and Control Output 1 (CH1 RF DC Cal
State[1:0])
These signals represent the state of the Rx1 RF DC calibration
state machine.
0x035 = 0x10 (GAIN CONTROL AND RSSI)
Control Output 7 Through Control Output 5 (CH2 AGC
State[2:0])
Same as 0x035 = 0x0F Control Output 7 through Control
Output 5 but apply to Rx2.
Control Output 4 (CH2 Enable RSSI)
This signal is high when the RSSI word is valid and low
otherwise.
Control Output 3 (CH1 Enable RSSI)
Same as Control Output 4 but applies to Rx1.
Control Output 2 and Control Output 1(CH2 RF DC Cal
State[1:0])
Same as 0x035 = 0x0F Control Output 2 and Control Output 1
but apply to Rx2.
0x035 = 0x11 (AUXADC DIGITAL OUTPUT)
Control Output 7 Through Control Output 0 (AuxADC
Output[11:4])
These bits are the most significant 8 bits of the AuxADC digital
word.
0x035 = 0x12 (GAIN CONTROL, POWER WORD
READY)
Control Output 7 (CH1 Filter Power Ready)
Pulses high when the power measurement using the HB1 or
FIR outputs is valid. The time the signal remains high is
dependent on the internal clock rates of the AD9361. For the
standard customer software LTE 10 MHz profile, the signal is
high for approximately 65 ns.
Control Output 6 (CH1 Gain Lock)
See 0x035 = 0x08 Control Output 6.
Control Output 5 (CH1 Energy Lost)
See 0x035 = 0x08 Control Output 5.
Control Output 4 (CH1 Stronger Signal)
See 0x035 = 0x08 Control Output 7.
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AD9361 Reference Manual
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