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<P align=center><IMG alt=凌力尔特变频混频器LTC554x系列 src="/uploadfile/newspic/2009/200910/20091028120542810.jpg" border=0></P> <P> <STRONG><A href="http://www.cps800.com/news/21057.htm" target=_blank>凌力尔特公司</A></STRONG> (Linear Technology Corporation) 近日推出 4 个全新大动态范围下<STRONG><A href="http://www.cps800.com/news/9602.htm" target=_blank>变频混频器</A></STRONG>,这些器件属于 <STRONG>LTC554x</STRONG> 系列,涵盖 700MHz 至 4GHz 无线基础设施频率范围。LTC554x 混频器提供了卓越的 26dBm IIP3 (输入 3 阶截取)、9dB 至 10dB 的低噪声指数和 8dB 的高转换增益,从而使主接收器和数字预失真接收器实现了卓越的动态范围性能。LTC554x 系列混频器提供了同类最佳的能力,可在存在强阻塞干扰的情况下保持一个低噪声指数,并显著地增强了接收器的灵敏度和坚固性。与同类产品中的其它混频器不同,LTC554x 系列用单 3.3V 电源工作,而不会有损于性能,同时与最接近的同类竞争性解决方案相比,功耗降低了 34%。</P> <P> <TABLE style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; PADDING-TOP: 2.85pt; BORDER-COLLAPSE: collapse; mso-table-layout-alt: fixed"> <TBODY> <TR> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: rgb(0,0,0) 0.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: rgb(0,0,0) 0.5pt solid; WIDTH: 71.7pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=95> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'; mso-spacerun: 'yes'">器件型号</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: rgb(0,0,0) 0.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: medium none; WIDTH: 108.75pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=145> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">RF </SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'; mso-spacerun: 'yes'">频率范围</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: rgb(0,0,0) 0.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: medium none; WIDTH: 229.5pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=306> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'; mso-spacerun: 'yes'">应用</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'"><o:p></o:p></SPAN></P></TD></TR> <TR> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: rgb(0,0,0) 0.5pt solid; WIDTH: 71.7pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=top width=95> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">LTC5540</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: medium none; WIDTH: 108.75pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=top width=145> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">600MHz – 1.3GHz</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: medium none; WIDTH: 229.5pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=top width=306> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">700MHz LTE</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'">、</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">850MHz GSM / EDGE</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'">、</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">CDMA</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD></TR> <TR> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: rgb(0,0,0) 0.5pt solid; WIDTH: 71.7pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=top width=95> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">LTC5541</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: medium none; WIDTH: 108.75pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=top width=145> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">1.3GHz – 2.3GHz</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: medium none; WIDTH: 229.5pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=top width=306> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">LTE</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'">、</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">W-CDMA</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'">、</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">TD-SCDMA</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'">、</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">CDMA2k</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'">、</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">1800GSM/EDGE</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD></TR> <TR> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: rgb(0,0,0) 0.5pt solid; WIDTH: 71.7pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=top width=95> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">LTC5542</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: medium none; WIDTH: 108.75pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=top width=145> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">1.6GHz – 2.7GHz</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: medium none; WIDTH: 229.5pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=top width=306> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">W-CDMA</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'">、</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">TD-SCDMA</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'">、</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">CDMA2k</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'">、</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">LTE</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'">、</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">WiMAX</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD></TR> <TR> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: rgb(0,0,0) 0.5pt solid; WIDTH: 71.7pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=top width=95> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">LTC5543</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: medium none; WIDTH: 108.75pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=top width=145> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">2.3GHz – 4.0GHz</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 2.85pt; BORDER-LEFT: medium none; WIDTH: 229.5pt; PADDING-TOP: 2.85pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=top width=306> <P class=p15 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">LTE</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: '宋体'">、</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">WiMAX</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD></TR></TBODY></TABLE><!--EndFragment--></P> <P><IMG alt=凌力尔特变频混频器LTC554x系列 src="/uploadfile/newspic/2009/200910/20091028120734768.jpg" align=left border=0> LTC554x 混频器包含一个集成IF放大器、LO 缓冲器、LO 开关和 RF 平衡-不平衡<STRONG><A href="http://www.cps800.com/news/20886.htm" target=_blank>变压器</A></STRONG>。每个混频器的 RF 输入是单端和 50Ω 匹配。针对跳频应用就提供了两个具有高隔离度的单端 LO 输入。每个 LO 输入也是单端和始终 50Ω 匹配,这与混频器处于运行或断电状态无关,旨在避免 PLL (锁相环) 的解锁。LO 输入仅需要 0dBm 的驱动电平。所有这些特点将有利于造就一款外部元件极少的紧凑型解决方案。</P> <P> LTC554x 混频器具有相同的引出脚配置,因而使设计师能够在工作于不同频段的多个平台上共用 PC 板布局。这有助于用户降低总体成本并加快产品的面市进程。此外,这些混频器的引出脚配置还与业界常见的焊脚和引出脚配置相似,从而方便了客户的选用,同时改善了性能并降低了功率消耗。</P> <P> LTC554x 混频器专为满足新生的第 4 代 LTE (长期演进) 蜂窝和 WiMAX 基站、以及 3G CDMA、WCDMA、TD-SCDMA、UMTS 和 GSM/EDGE 平台的要求而设计。这些混频器的可靠性能还强化了其他的无线系统 (例如:点对点微波系统、蜂窝直放站、公共安全无线电设备以及军用通信系统)。</P> <P><STRONG>性能概要:LTC554x</STRONG></P> <P> <TABLE style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; PADDING-TOP: 0pt; BORDER-COLLAPSE: collapse; mso-table-layout-alt: fixed"> <TBODY> <TR style="HEIGHT: 21.5pt"> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: rgb(0,0,0) 0.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: rgb(0,0,0) 0.5pt solid; WIDTH: 97.2pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=129> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: '宋体'; mso-spacerun: 'yes'">参数</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: rgb(0,0,0) 0.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 114.75pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=153> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">LTC5540</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: rgb(0,0,0) 0.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 85.5pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=114> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">LTC5541</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: rgb(0,0,0) 0.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 84.8pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=113> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">LTC5542</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: rgb(0,0,0) 0.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 82.1pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=109> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">LTC5543</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD></TR> <TR style="HEIGHT: 23pt"> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: rgb(0,0,0) 0.5pt solid; WIDTH: 97.2pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=129> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: '宋体'; mso-spacerun: 'yes'">工作频率</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 114.75pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=153> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">600MHz – 1.3GHz</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 85.5pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=114> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">1.3GHz – 2.3GHz</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 84.8pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=113> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">1.7GHz – 2.7GHz</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 82.1pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=109> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">2.3GHz – 4.0GHz</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD></TR> <TR style="HEIGHT: 23pt"> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: rgb(0,0,0) 0.5pt solid; WIDTH: 97.2pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=129> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: '宋体'; mso-spacerun: 'yes'">输入</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'"> IP3</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 114.75pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=153> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">25.8dBm</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 85.5pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=114> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">26.4dBm</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 84.8pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=113> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">26.8dBm</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 82.1pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=109> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">24.5dBm</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD></TR> <TR style="HEIGHT: 23pt"> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: rgb(0,0,0) 0.5pt solid; WIDTH: 97.2pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=129> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: '宋体'; mso-spacerun: 'yes'">转换增益</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 114.75pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=153> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">8dB</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 85.5pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=114> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">8.1dB</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 84.8pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=113> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">8dB</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 82.1pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=109> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">8.4dB</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD></TR> <TR style="HEIGHT: 23.75pt"> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: rgb(0,0,0) 0.5pt solid; WIDTH: 97.2pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=129> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: '宋体'; mso-spacerun: 'yes'">噪声指数</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'PMingLiU'; mso-spacerun: 'yes'"> (</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">NF</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'PMingLiU'">)</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: '宋体'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 114.75pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=153> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">10.1dB</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 85.5pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=114> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">9.5dB</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 84.8pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=113> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">9.9dB</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 82.1pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=109> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">10.2dB</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD></TR> <TR style="HEIGHT: 23.75pt"> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: rgb(0,0,0) 0.5pt solid; WIDTH: 97.2pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=129> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: '宋体'; mso-spacerun: 'yes'">在 </SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">5dBm </SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: '宋体'; mso-spacerun: 'yes'">阻塞时的</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'PMingLiU'"> </SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">NF</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: '宋体'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 114.75pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=153> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">17.7dB</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 85.5pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=114> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">16dB</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 84.8pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=113> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">17.3dB</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 82.1pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=109> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">17.5dB</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD></TR> <TR style="HEIGHT: 23pt"> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: rgb(0,0,0) 0.5pt solid; WIDTH: 97.2pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=129> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: '宋体'; mso-spacerun: 'yes'">功耗</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: '宋体'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 114.75pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=153> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">0.66W</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 85.5pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=114> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">0.63W</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 84.8pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=113> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">0.66W</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD> <TD style="BORDER-RIGHT: rgb(0,0,0) 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0pt; BORDER-LEFT: medium none; WIDTH: 82.1pt; PADDING-TOP: 0pt; BORDER-BOTTOM: rgb(0,0,0) 0.5pt solid" vAlign=center width=109> <P class=p0 style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">0.66W</SPAN><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P></TD></TR></TBODY></TABLE><!--EndFragment--></P> <P> LTC554x 混频器采用 3.3V 单工作电源,吸收 200mA 电源电流。LTC554x 器件具有一种断电功能,接通和关断时间分别为 2us 和 3us。当被停用时,这些 IC 的最大消耗电流为 500uA。这些产品采用 20 引线、5mm x 5mm QFN 表面贴装封装,将于 2009 年 11 月开始生产,先推出的将是 LTC5541,接着是 LTC5543、LTC5540 和 LTC5542。所有产品现在都已提供样品,并将于 2010 年 2 月生产供货。LTC5541 的价格为每片 6.50 美元。</P> <P><STRONG>凌力尔特公司简介<BR></STRONG> <FONT style="FONT-FAMILY: 楷体_GB2312" color=#666699>凌力尔特公司 (Linear Technology Corporation) 创建于 1981 年,是一家高性能线性集成电路制造商。凌力尔特于 1986 年成为一家上市公司,并于 2000 年成为由主要上市公司组成的 S&P 500 指数的成员之一。凌力尔特的产品包括高性能放大器、比较器、电压基准、单片滤波器、线性稳压器、DC/DC 变换器、电池充电器、数据转换器、通信接口电路、射频信号修整电路、uModule® 产品以及其它众多模拟功能。凌力尔特公司的高性能电路可用于电信、蜂窝电话、如光纤交换机的网络设备、笔记本电脑和台式电脑、计算机外围设备、视频/多媒体装置、工业仪表、安全监控设备、包括数码照相机、MP3 播放器在内的高端消费类产品、复杂医疗设备、汽车用电子设备、工厂自动化、过程控制、以及军事和航天系统等领域。如需了解更多信息,请登录 </FONT><A href="http://www.linear.com.cn"><FONT style="FONT-FAMILY: 楷体_GB2312" color=#666699>www.linear.com.cn</FONT></A><FONT style="FONT-FAMILY: 楷体_GB2312" color=#666699> 。<FONT color=#000000>■</FONT></FONT></P>