CC2500_06 Datasheet, PDF (43/84 Pages) Texas Instruments – Single Chip Low Cost Low Power RF Transceiver

CC2500
Output power,
PATABLE
typical, +25°C, 3.0 V [dBm] value
(–55 or less)
0x00
–30
0x50
–28
0x44
–26
0xC0
–24
0x84
–22
0x81
–20
0x46
–18
0x93
–16
0x55
–14
0x8D
–12
0xC6
–10
0x97
–8
0x6E
–6
0x7F
–4
0xA9
–2
0xBB
0
0xFE
Current consumption,
typical [mA]
8.4
9.9
9.7
10.2
10.1
10.0
10.1
11.7
10.8
12.2
11.1
12.2
14.1
15.1
16.2
17.7
21.2
Table 31: Optimum PATABLE settings for various output power levels
25 Selectivity
Figure 22 to Figure 26 show the typical selectivity performance (adjacent and alternate rejection).
50
40
30
20
10
0
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
-10
Frequency offset [MHz]
Figure 22: Typical selectivity at 2.4 kbps. IF frequency is 273.9 kHz.
MDMCFG2.DEM_DCFILT_OFF = 1
PRELIMINARY Data Sheet (Rev.1.2) SWRS040A
Page 43 of 83