BL54573。M54573。CD54573
<P></P><P><STRONG><FONT color=red>8脚封装,电源电压=12～15V,集成电路为调谐器频段译码、驱动器电路、可切换3或4个频段。<BR></FONT></STRONG><BR><BR><BR></P>
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<TABLE class=t_table style="BACKGROUND-COLOR: #ffffff" width="98%">M54573
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<TD>引脚序号</TD>
<TD>符 号</TD>
<TD>功 能</TD>
<TD>直流电压（V）</TD>
<TD>对地电阻（KΩ）红笔接地</TD>
<TD>对地电阻（KΩ）黑笔接地</TD>
<TD>备 注</TD></TR>
<TR>
<TD>1</TD>
<TD>OUT3</TD>
<TD>输出3</TD>
<TD>12</TD>
<TD>1.1</TD>
<TD>.32</TD>
<TD>Rx10</TD></TR>
<TR>
<TD>2</TD>
<TD>OUT2</TD>
<TD>输出2</TD>
<TD>0</TD>
<TD>1.5</TD>
<TD>1.5</TD>
<TD><BR></TD></TR>
<TR>
<TD>3</TD>
<TD>INA</TD>
<TD>输入A</TD>
<TD>.5</TD>
<TD>22</TD>
<TD>12</TD>
<TD><BR></TD></TR>
<TR>
<TD>4</TD>
<TD>INB</TD>
<TD>输入B</TD>
<TD>12</TD>
<TD>22</TD>
<TD>8.8</TD>
<TD><BR></TD></TR>
<TR>
<TD>5</TD>
<TD>GND</TD>
<TD>接地</TD>
<TD>0</TD>
<TD>0</TD>
<TD>0</TD>
<TD><BR></TD></TR>
<TR>
<TD>6</TD>
<TD>OUT4</TD>
<TD>输出4</TD>
<TD>0</TD>
<TD>∞</TD>
<TD>9.5</TD>
<TD><BR></TD></TR>
<TR>
<TD>7</TD>
<TD>OUT1</TD>
<TD>输出1</TD>
<TD>0</TD>
<TD>1.2</TD>
<TD>1.2</TD>
<TD><BR></TD></TR>
<TR>
<TD>8</TD>
<TD>Vcc</TD>
<TD>电源电压</TD>
<TD>12</TD>
<TD>0.4</TD>
<TD>.1</TD>
<TD>Rx10</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE><BR><BR>
<TABLE class=t_table style="BACKGROUND-COLOR: #ffffff" width="98%">M54573L
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<TR>
<TD>引脚</TD>
<TD>功能</TD>
<TD>工作电压（V）</TD>
<TD>在路电阻（KΩ）_红笔测</TD>
<TD>在路电阻（KΩ）_黑笔测</TD></TR>
<TR>
<TD>1</TD>
<TD>BL(VHFL)频段控制电压输出</TD>
<TD>0/12.0</TD>
<TD>0.5</TD>
<TD>1.2</TD></TR>
<TR>
<TD>2</TD>
<TD>BH(VHFH)频段控制电压输出</TD>
<TD>0/12.0</TD>
<TD>1.8</TD>
<TD>2.0</TD></TR>
<TR>
<TD>3</TD>
<TD>频段节换控制电压输入</TD>
<TD>0/12.0</TD>
<TD>10.0</TD>
<TD>22.5</TD></TR>
<TR>
<TD>4</TD>
<TD>频段节换控制电压输入</TD>
<TD>0/12.0</TD>
<TD>10.0</TD>
<TD>22.5</TD></TR>
<TR>
<TD>5</TD>
<TD>接地端</TD>
<TD>0</TD>
<TD>0</TD>
<TD>0</TD></TR>
<TR>
<TD>6</TD>
<TD>本机空脚</TD>
<TD>0</TD>
<TD>9.5</TD>
<TD>∞</TD></TR>
<TR>
<TD>7</TD>
<TD>BU(UHF)频段控制电压输出</TD>
<TD>12.0/0</TD>
<TD>1.6</TD>
<TD>1.8</TD></TR>
<TR>
<TD>8</TD>
<TD>12V电源输入端</TD>
<TD>12.0</TD>
<TD>0.2</TD>
<TD>0.4</TD></TR></TBODY></TABLE>
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