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| 型号： | SM1230E868 |
| 厂商： | Semtech |
| 文件页数： | 33/46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： | 板 |
| 产品目录页面： | 584 (CN2011-ZH PDF) |
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SX1230
Integrated Transmitter IC
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
7.7. Matching for 13 dBm Output Power and Below
For operation at or below 13 dBm of output power, the matching configuration of the following figures is recommended for
use in the 915 MHz, 868 MHz and 434/351 MHz bands respectively. Whilst the 17 dBm matching of the preceding section
can be used, the adoption of the following matching configurations will guarantee that the current consumption in transmit
mode is optimized.
VR_PA
0.68 pF
22 nH
S/C
10 pF
RFOUT
3.3 pF
6.8 nH
5.6 nH
27 pF
3.3 pF
13 dBm
Figure 18. Consumption Optimized Matching for 915 MHz operation at or below 13 dBm Output Power
VR_PA
22 nH
0.68 pF
0.68 pF
S/C
22 pF
RFOUT
3.3 pF
6.8 nH
5.6 nH
3.3 pF
13 dBm
8.2 pF
Figure 19. Consumption Optimized Matching for 868 MHz Operation at or below 13 dBm Output Power
VR_PA
1.8 pF
47 nH
5.6 nH
100 pF
RFOUT
5.6 pF
18 nH
18 nH
10 pF
6.8 pF
13 dBm
Figure 20. Consumption Optimized Matching for 315/434 MHz Operation at or below 13 dBm Output Power
SX1230, Revision 2 May 2009
?2008 Semtech Corp.
Page 33
www.semtech.com
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相关代理商/技术参数 |
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| SM1230-XAX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Power Optimizers Partial Deployment for Single String Systems |
| SM1230-XBX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Power Optimizers Partial Deployment for Single String Systems |
| SM1231E433 | 制造商:Semtech Corporation 功能描述:Development Module for SX1231 433MHz Low Power Integrated UHF Transceiver 制造商:SEMTECH 功能描述:Development Module for SX1231 433MHz Low Power Integrated UHF Transceiver |
| SM1231E433A | 制造商:Semtech Corporation 功能描述:SX1231 RF MODULE 433 MHZ |
| SM1231E868 | 制造商:Semtech Corporation 功能描述:Development module for SX1231 868MHz Low Power Integrated UHF Transceiver 制造商:SEMTECH 功能描述:Development module for SX1231 868MHz Low Power Integrated UHF Transceiver |
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