media:Suggested_settings_for_WMBUS_T_mode.pdf‎

Suggested settings for WMBUS T mode
-
Measurements were done on 6 CC1125 EMs @ 40MHz
The sensitivity measurements are done with a 3 byte package. 20% PER equals 1% BER.
The PER vs level measurements are done with a 30byte package, 50 packages are sent pr level.
Operating conditions are 2.0V -3.6V, 3.0V typical, -40° - 85°, 25° typical.
Settings
SYNC3
SYNC2
SYNC1
SYNC0
SYNC_CFG1
SYNC_CFG0
DEVIATION_M
MODCFG_DEV_E
DCFILT_CFG
PREAMBLE_CFG1
PREAMBLE_CFG0
FREQ_IF_CFG
IQIC
CHAN_BW
MDMCFG1
MDMCFG0
DRATE2
DRATE1
DRATE0
AGC_REF
AGC_CS_THR
AGC_GAIN_ADJUST
AGC_CFG3
AGC_CFG2
AGC_CFG1
AGC_CFG0
PA_CFG2
PA_CFG1
PA_CFG0
IF_MIX_CFG
FREQOFF_CFG
TOC_CFG
SOFT_TX_DATA_CFG
AA
AA
A4
3D
9
B
47
6
C
18
17
0
0
1
C6
5
A4
7A
E1
40
FD
0
3
20
A9
C0
7F
56
78
0
20
CB
0
Results
Sensitivity:
Typical over operating corners:
-103.2 @ 88kbps (-12% datarate tolerance)
-103.2 @ 100kbps (nominal datarate)
-102.3 @ 112kbps (12% datarate tolerance)
PER vs level:
Typ over operating corners
120.0
100.0
80.0
60.0
40.0
20.0
PER vs level for 88kbps
-2.0
-6.0
-10.0
-14.0
-18.0
-22.0
-26.0
-30.0
-34.0
-38.0
-42.0
-46.0
-50.0
-54.0
-58.0
-62.0
-66.0
-70.0
-74.0
-78.0
-82.0
-86.0
-90.0
-94.0
-98.0
-102.0
-106.0
-110.0
0.0
PER vs level for 112kbps
-6.0
-2.0
-6.0
-2.0
-30.0
-34.0
-38.0
-42.0
-46.0
-50.0
-54.0
-58.0
-62.0
-66.0
-70.0
-74.0
-78.0
-82.0
-86.0
-90.0
-94.0
-98.0
-102.0
-106.0
-110.0
-10.0
0.0
-10.0
20.0
-14.0
40.0
-18.0
60.0
-14.0
80.0
-18.0
100.0
-22.0
120.0
-22.0
Typ over operating conditions
-26.0
PER vs level for 100kbps
-26.0
-30.0
-34.0
-38.0
-42.0
-46.0
-50.0
-54.0
-58.0
-62.0
-66.0
-70.0
-74.0
-78.0
-82.0
-86.0
-90.0
-94.0
-98.0
-102.0
-106.0
-110.0
Typ over operation conditions
120.0
100.0
80.0
60.0
40.0
20.0
0.0