UG-570 AD9361 Reference Manual
| Page 80 of 128
0x035 = 0x17 (GAIN CONTROL)
Control Output 7 (CH2 Gain Lock)
See 0x035 = 0x08 Control Output 2.
Control Output 6 Through Control Output 0 (CH2 Rx
Gain[6:0])
Same as 0x035 = 0x16 Control Output 6 through Control
Output 0 but apply to Rx2.
0x035 = 0x18 (DC OFFSET TRACKING, POWER
WORD READY)
Control Output 7 (CH2 SOI Present)
Same as 0x035 = 0x15 Control Output 7 but applies to Rx2.
Control Output 6 (CH2 Update DCRF)
Same as 0x035 = 0x15 Control Output 6 but applies to Rx2.
Control Output 5 (CH2 Measure DCRF)
Same as 0x035 = 0x15 Control Output 5 but applies to Rx2.
Control Output 4 (CH2 DC Track Count Reached)
Same as 0x035 = 0x15 Control Output 4 but applies to Rx2.
Control Output 3 (CH2 Enable Dec Pwr)
This signal is high when the Rx2 decimated power word is
valid. In manual gain mode, this is always true. In the AGC
modes, the signal pulses low when the gain changes, indicating
that the decimated power word is not correct while the gain is
changing. The time that the signal is held low depends on the
gain control mode and the AD9361 internal clock rates but is
generally in the hundreds of nanoseconds. For example, for the
slow AGC mode and the standard LTE 10 MHz customer
software profile, the signal is low approximately 400 ns.
Control Output 2 (CH2 Enable ADC Pwr)
Operates in the same manner as Control Output 3 but applies to
the ADC power measurement for Channel 2.
Control Output 1 (CH1 Enable Dec Pwr)
Same as Control Output 3 but applies to Rx1.
Control Output 0 (CH1 Enable ADC Pwr)
Same as Control Output 2 but applies to Rx1.
0x035 = 0x19 (CHARGE PUMP CALIBRATION
STATES)
Control Output 7 Through Control Output 4 (Rx Syn CP
Cal[3:0])
These signals represent the state of the receiver charge pump
calibration state machine. Most of the cal time (10 s of
milliseconds) is spent in State 1. Near the end of the calibration,
the state machine jumps to State 8 and then approximately
10 ms later it steps through State 0 through State 8 in
approximately 200 µs, remaining in State 8 after the calibration.
Control Output 3 Through Control Output 0 (Tx Syn CP
Cal[3:0])
These signals represent the state of the transmitter charge pump
calibration state machine. However, response of these signals is
different than the Rx CP cal bits in Control Output 7 through
Control Output 4. For the Tx CP cal, the Control Outputs step
through State 0 through State 8 in approximately 200 µs and
remain at State 8 after the calibration completes.
0x035 = 0x1A (Rx VCO AND ALC CALIBRATION
STATES)
Control Output 7 (Rx Syn VCO Tuning[8])
The Rx synthesizer VCO tuning algorithm uses a state machine,
the state of which is represented by 9 bits. This is the most
significant bit of the state. The lower 8 bits are found in 0x035 =
0x1C, Control Output 7 through Control Output 0.
Control Output 6 Through Control Output 0 (Rx Synth
VCO ALC[6:0])
The Rx synthesizer VCO tuning algorithm incorporates an
automatic level control calibration to fine tune the VCO level.
These signals represent the state of the ALC state machine as it
calibrates.
0x035 = 0x1B (Tx VCO AND ALC CALIBRATION
STATES)
Control Output 7 (Tx Syn VCO Tuning[8])
Same as 0x035 = 0x1A Control Output 7 but applies to the Tx
synthesizer.
Control Output 6 Through Control Output 0 (Tx Synth
VCO ALC[6:0])
Same as 0x035 = 0x1A Control Output 6 through Control
Output 0 but apply to the Tx synthesizer.
0x035 = 0x1C (Rx VCO CALIBRATION STATES)
Control Output 7 Through Control Output 0 (Rx Syn VCO
Tuning[7:0])
These are the lower 8 bits of the Rx synthesizer VCO tuning
state machine. See 0x035 = 0x1A Control Output 7.
0x035 = 0x1D (Tx VCO CALIBRATION STATES)
Control Output 7 Through Control Output 0 (Tx Syn VCO
Tuning[7:0])
These bits are the same as those in 0x035 = 0x1C but they apply
to the Tx synthesizer VCO tuning state machine.
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