SX1231 SEMTECH [Semtech Corporation], SX1231 Datasheet - Page 63

• Manufacturer Part Number: SX1231
• Description: Low Power Integrated UHF Transceiver
• Manufacturer: SEMTECH [Semtech Corporation]

6.3. Transmitter Registers
Table 23 Transmitter Registers
Rev 2 - Nov 2009
ADVANCED COMMUNICATIONS & SENSING
Name
(Address)
RegPaLevel
(0x11)
RegPaRamp
(0x12)
RegOcp
(0x13)
Bits Variable Name
4-0
7-4
3-0
7-5
3-0
7
6
5
4
Pa0On
Pa1On
Pa2On
OutputPower
-
PaRamp
-
OcpOn
OcpTrim
Mode
rw
rw
rw
rw
rw
rw
rw
r
r
Page 63
Default
Value
11111
0000
1001
1011
000
1
0
0
1
*
Output power setting, with 1 dB steps
Rise/Fall time of ramp up/down in FSK
Trimming of OCP current:
Description
Enables PA0, connected to RFIO and LNA
Enables PA1, on PA_BOOST pin
Enables PA2, on PA_BOOST pin
Pout = -18 + OutputPower [dBm] , with PA0
Pout = -14 + OutputPower [dBm] , with PA1 and PA2
unused
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
unused
Enables overload current protection (OCP) for the PA:
0
1
100 mA OCP by default
Imax
OCP disabled
OCP enabled
=
10 us
62 us
12 us
500 us
100 us
25 us
20 us
15 us
3.4 ms
2 ms
1 ms
250 us
125 us
50 us
40 us
31 us
45
+
5 OcpTrim
×
(
mA
)
DATASHEET
www.semtech.com
SX1231