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S2-LPS Datasheet(PDF) 56 Page - STMicroelectronics

Part # S2-LPS
Description  Ultra-low power, high performance, sub-1 GHz transceiver
PDF  73 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

S2-LPS Datasheet(HTML) 56 Page - STMicroelectronics

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Name
Addr
Default
Bit
Field name
Description
PA_POWER5
5D
24
6:0
PA_LEVEL_5
Output power level for
5th slot.
PA_POWER4
5E
30
7
RESERVED
-
6:0
PA_LEVEL_4
Output power level for
4th slot.
PA_POWER3
5F
48
7
RESERVED
-
6:0
PA_LEVEL_3
Output power level for
3rd slot.
PA_POWER2
60
60
7
RESERVED
-
6:0
PA_LEVEL_2
Output power level for
2nd slot.
PA_POWER1
61
00
7
RESERVED
-
6:0
PA_LEVEL_1
Output power level for
1st slot.
PA_POWER0
62
47
7
DIG_SMOOTH_EN
1: enable the
generation of the
internal signal
TX_DATA which is
the input of the
FIR. Needed when
FIR_EN=1.
6
PA_MAXDBM
1: configure the PA to
send maximum output
power. Power ramping
is disable with this bit
set to 1.
5
PA_RAMP_EN
1: enable the power
ramping.
4:3
PA_RAMP_STEP_LE
N
Set the step width
(unit: 1/8 of bit period).
2:0
PA_LEVEL_MAX_IDX
Final level for power
ramping or selected
output power index.
PA_CONFIG1
63
03
7:4
RESERVED
-
3:2
FIR_CFG
FIR configuration:
•
00b: filtering
•
01b: ramping
•
10b: switching
(see
Section 4.4.2.1
OOK
smoothing)
1
FIR_EN
1: enable FIR (see
Section 4.4.2.1 OOK
smoothing)
0
RESERVED
-
PA_CONFIG0
64
8A
7:4
PA_DEGEN_TRIM
11xx ® code
threshold: 485
10xx ® code
threshold: 465
01xx ® code
threshold: 439
S2-LPS
Register contents
DS13831 - Rev 1
page 56/73



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