参数资料
型号: SM1230E868
厂商: Semtech
文件页数: 32/46页
文件大小: 0K
描述: BOARD EVAL XMITTER FOR SX1230
设计资源: SM1230 BOM
SX1230 Eval Board Schematic
标准包装: 1
类型: 发射器
频率: 868MHz
适用于相关产品: SX1230
已供物品:
产品目录页面: 584 (CN2011-ZH PDF)
SX1230
Integrated Transmitter IC
ADVANCED COMMUNICATIONS & SENSING
VR_PA
33 nH
3.3 pF
DATASHEET
1.5 nH
100 pF
RFOUT
27 pF
18 nH
18 nH
27 pF
12 pF
17 dBm
Figure 17. Output Matching for 17 dBm Output Power in the 315 MHz Band
The following table shows typical measured power values for the harmonics of the fundamental using each of the three
matching schemes above. Note that the harmonic levels are in full compliance with the regulations appropriate to each
band with substantial margin.
Table 13 Typical Harmonic Levels Measured in 30 kHz Bandwidth using the +17 dBm Matching Circuits.
Harmonic
H1
H2
H3
H4
H5
SX1230, Revision 2 May 2009
Pout 315 MHz
(dBm)
17.1
-49
-49
-48
-50
Pout 434 MHz
(dBm)
17.4
-50
-44
-43
-40
Page 32
Pout 868 MHz
(dBm)
16.4
-40.7
<-52.8
-49.8
-45.3
Pout 915 MHz
(dBm)
17.1
<-52.8
<-52.8
-47.38
<-52.8
www.semtech.com
?2008 Semtech Corp.
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