LMS7002M Quick Starter Manual for EVB7 kit
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P a g e
Version: 2.2
Last modified: 29/09/2014
LPFH block
Power down of the LPFH block. Default value block is powered down.
LPFL block
Power down of the LPFL block. Default value block is powered on.
PGA block
Power down of the PGA block. Default value block is powered on
Enable RBB module
Powers down all RBB blocks when not selected. If selected enables power down of separate
RBB blocks. Default values set to enable.
Direct control
Enable direct control of PDs and ENs. Enabled when selected.
RC time constant
Resistance
Controls the absolute value of the resistance of the RC time constant in LPF. Control range
from 0 to 31. The higher value selected the wider LPF BW. Default values set to 16.
Capacitance of RC
time
constant
(rxMode
from
37MHz to 108MHz)
Controls the capacitance value of the RC time constant of high band LPF. Control range
from 0 to 255. The lower value selected the wider LPF BW. Default values set to 0.
Capacitance of RC
time
constant
(rxMode
from
1.4MHz to 20MHz)
Controls the capacitance value of the RC time constant of low band LPF. Control range
from 0 to 255. The lower value selected the wider LPF BW. Default values set to 0.
Intended to be controlled together with the TIA to maintain Chebychev response.
Operational amplifier
Stability
passive
compensation
Controls the stability passive compensation of the LPFH operational amplifier. Control
range from 0 to 7. Default values set to 0.
Stability
passive
compensation
Controls the stability passive compensation of the LPFL operational amplifier. Control
range from 0 to 5. Default values set to 5.
Input stage reference
bias
current
(RBB_LPF)
Controls the reference bias current of the input stage of the operational amplifier used in
LPF blocks (Low or High). Must increase up to 24 when a strong close blocker is detected
to maintain the linearity performance. Control range from 0 to 31. Default values set to 12.
Output
stage
reference bias current
(RBB_LPF)
Controls the reference bias current of the output stage of the operational amplifier used in
LPF blocks (Low or High). Must increase up to 24 when a strong close blocker is detected
to maintain the linearity performance. Control range from 0 to 31. Default values set to 12.
Output
stage
reference bias current
(PGA)
Controls the output stage reference bias current of the operational amplifier used in the PGA
circuit. Must increase up to 12 when a strong close blocker is detected or when operating at
the high band frequencies to maintain the linearity performance. Control range from 0 to 31.
Default values set to 6.
Input stage reference
bias current (PGA)
Controls the input stage reference bias current of the operational amplifier used in the PGA
circuit. Must increase up to 12 when a strong close blocker is detected or when operating at
the high band frequencies to maintain the linearity performance. Control range from 0 to 31.
Default values set to 6.
Stability
passive
compensation
Controls the stability passive compensation of the PGA operational amplifier. Control range
from 0 to 31. Default values set to 24.
TRF
7.7
The TRF page contains the Tx front end amplifier gain controls, Tx outputs paths selection
controls and all transmit block power down controls.
