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LA7688各引脚功能及管脚电压

2008-10-8 17:25:23  5555
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<p><font face="Verdana"><strong>LA7688各引脚功能及管脚电压</strong> <br/></font></p>
<table style="WIDTH: 562pt; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="749" border="0" x:str>
<colgroup>
<col style="WIDTH: 54pt" width="72">
<col style="WIDTH: 54pt" span="2" width="72">
<col style="WIDTH: 91pt; mso-width-source: userset; mso-width-alt: 3872" width="121">
<col style="WIDTH: 35pt; mso-width-source: userset; mso-width-alt: 1504" width="47">
<col style="WIDTH: 54pt" width="72">
<col style="WIDTH: 54pt" span="2" width="72">
<col style="WIDTH: 112pt; mso-width-source: userset; mso-width-alt: 4768" width="149">
<tbody>
<tr style="HEIGHT: 18.75pt" height="25">
<td class="xl28" style="WIDTH: 562pt; HEIGHT: 18.75pt" width="749" colspan="9" height="25"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><font class="font7">—</font><font class="font5"> </font><font class="font7">—测试机型:</font><font class="font5">R2118AE?????</font></td></tr>
<tr style="HEIGHT: 14.25pt" height="19">
<td style="HEIGHT: 14.25pt" height="19">脚号</td>
<td>静态电压</td>
<td>动态电压</td>
<td class="xl24">功能说明</td>
<td></td>
<td>脚号</td>
<td class="xl25">静态电压</td>
<td class="xl25">动态电压</td>
<td class="xl24">功能说明</td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>1</td>
<td align="right" x:num>2</td>
<td class="xl25">2</td>
<td class="xl24" style="mso-ignore: colspan" colspan="2">伴音中频输入兼<font class="font9">AV-SW/SECAM</font><font class="font8">切换控制输入</font></td>
<td align="right" x:num>27</td>
<td class="xl25">1.2</td>
<td class="xl25">4.7</td>
<td class="xl24">色副载波晶体选择行同步检测输入</td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>2</td>
<td align="right" x:num>2.4</td>
<td class="xl25">2.4</td>
<td class="xl26">RF AGC<font class="font8">延迟调整</font></td>
<td></td>
<td align="right" x:num>28</td>
<td class="xl25">0</td>
<td class="xl25">0</td>
<td class="xl24">快速消隐</td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>3</td>
<td align="right" x:num>5.7</td>
<td class="xl25">4</td>
<td class="xl26" style="mso-ignore: colspan" colspan="2">APC<font class="font8">相鉴测滤波器端子</font></td>
<td align="right" x:num>29</td>
<td class="xl25">3</td>
<td class="xl25">3</td>
<td class="xl26">B<font class="font8">字符信号输入</font></td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>4</td>
<td align="right" x:num>3</td>
<td class="xl25">3</td>
<td class="xl24" style="mso-ignore: colspan" colspan="2">音频放大的滤波器端子</td>
<td align="right" x:num>30</td>
<td class="xl25">3</td>
<td class="xl25">3</td>
<td class="xl26">G<font class="font8">字符信号输入</font></td></tr>
<tr style="HEIGHT: 15.75pt" height="21">
<td style="HEIGHT: 15.75pt" align="right" height="21" x:num>5</td>
<td align="right" x:num>7.1</td>
<td class="xl25">7.1</td>
<td class="xl26">PLL<font class="font8">视频检波</font><font class="font9">VCO</font><font class="font8">外</font></td>
<td class="xl27">????????</td>
<td align="right" x:num>31</td>
<td class="xl25">3</td>
<td class="xl25">3</td>
<td class="xl26">R<font class="font8">字符信号输入</font></td></tr>
<tr style="HEIGHT: 14.25pt" height="19">
<td style="HEIGHT: 14.25pt" align="right" height="19" x:num>6</td>
<td align="right" x:num>7.1</td>
<td class="xl25">7.1</td>
<td class="xl24">接电容、电感</td>
<td></td>
<td align="right" x:num>32</td>
<td class="xl25">0</td>
<td class="xl25">3.7</td>
<td class="xl24">黑电平扩展滤波器外接</td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>7</td>
<td align="right" x:num>4.7</td>
<td class="xl25">4.7</td>
<td class="xl26">AFT<font class="font8">电压输出</font></td>
<td></td>
<td align="right" x:num>33</td>
<td class="xl25">1.7</td>
<td class="xl25">1.7</td>
<td class="xl24">蓝基色信号输出</td></tr>
<tr style="HEIGHT: 14.25pt" height="19">
<td style="HEIGHT: 14.25pt" align="right" height="19" x:num>8</td>
<td align="right" x:num>3.7</td>
<td class="xl25">2.8</td>
<td class="xl24">视频检波输出</td>
<td></td>
<td align="right" x:num>34</td>
<td class="xl25">1.9</td>
<td class="xl25">1.9</td>
<td class="xl24">绿基色信号输出</td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>9</td>
<td align="right" x:num>4</td>
<td class="xl25">4</td>
<td class="xl24" style="mso-ignore: colspan" colspan="2">内藏滤波器调节及<font class="font9">S-VHS</font><font class="font8">控制</font></td>
<td align="right" x:num>35</td>
<td class="xl25">1.9</td>
<td class="xl25">1.9</td>
<td class="xl24">红基色信号输出</td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>10</td>
<td align="right" x:num>3.6</td>
<td class="xl25">3.6</td>
<td class="xl26">TV<font class="font8">视频输入端子</font></td>
<td></td>
<td align="right" x:num>36</td>
<td class="xl25">4.7</td>
<td class="xl25">4.7</td>
<td class="xl26">B-Y<font class="font8">信号输入</font></td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>11</td>
<td align="right" x:num>2.3</td>
<td class="xl25">2.3</td>
<td class="xl24">对比度控制</td>
<td></td>
<td align="right" x:num>37</td>
<td class="xl25">4.7</td>
<td class="xl25">4.7</td>
<td class="xl26">R-Y<font class="font8">信号输入</font></td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>12</td>
<td align="right" x:num>4.6</td>
<td class="xl25">4.6</td>
<td class="xl26">AV<font class="font8">音频输入</font></td>
<td></td>
<td align="right" x:num>38</td>
<td class="xl25">3.8</td>
<td class="xl25">3.8</td>
<td class="xl26">B-Y<font class="font8">信号输入</font></td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>13</td>
<td align="right" x:num>1.6</td>
<td class="xl25">1.6</td>
<td class="xl26" style="mso-ignore: colspan" colspan="2">S-VHS<font class="font8">状态时色度信号输入兼清晰度</font></td>
<td align="right" x:num>39</td>
<td class="xl25">3.8</td>
<td class="xl25">3.8</td>
<td class="xl26">B-Y<font class="font8">信号输入</font></td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>14</td>
<td align="right" x:num>3.4</td>
<td class="xl25">3.4</td>
<td class="xl26">AV<font class="font8">视频输入</font></td>
<td></td>
<td align="right" x:num>40</td>
<td class="xl25">7.6</td>
<td class="xl25">7.6</td>
<td class="xl24">集成块供电<font class="font9">8V</font></td></tr>
<tr style="HEIGHT: 14.25pt" height="19">
<td style="HEIGHT: 14.25pt" align="right" height="19" x:num>15</td>
<td align="right" x:num>0</td>
<td class="xl25">0</td>
<td class="xl24">地</td>
<td></td>
<td align="right" x:num>41</td>
<td class="xl25">3.9</td>
<td class="xl25">1.3</td>
<td class="xl24">4.43MHz晶体</td></tr>
<tr style="HEIGHT: 14.25pt" height="19">
<td style="HEIGHT: 14.25pt" align="right" height="19" x:num>16</td>
<td align="right" x:num>3.8</td>
<td class="xl25">3.1</td>
<td class="xl24">视频输入</td>
<td></td>
<td align="right" x:num>42</td>
<td class="xl25">1.3</td>
<td class="xl25">3.9</td>
<td class="xl24">3.58MHz晶体</td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>17</td>
<td align="right" x:num>0.3</td>
<td class="xl25">2.5</td>
<td class="xl24" style="mso-ignore: colspan" colspan="2">消色控制输入、色饱和度控制</td>
<td align="right" x:num>43</td>
<td class="xl25">4.6</td>
<td class="xl25">4.6</td>
<td class="xl26">APC<font class="font8">低通滤波</font></td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>18</td>
<td align="right" x:num>0.3</td>
<td class="xl25">0.3</td>
<td class="xl24" style="mso-ignore: colspan" colspan="2">色调控制、兼<font class="font9">PAL/N</font><font class="font8">开关</font></td>
<td align="right" x:num>44</td>
<td class="xl25">3</td>
<td class="xl25">3</td>
<td class="xl26">FM<font class="font8">检波的偏置电压滤波</font></td></tr>
<tr style="HEIGHT: 14.25pt" height="19">
<td style="HEIGHT: 14.25pt" align="right" height="19" x:num>19</td>
<td align="right" x:num>2.5</td>
<td class="xl25">2.5</td>
<td class="xl24">亮度控制</td>
<td></td>
<td align="right" x:num>45</td>
<td class="xl25">7.7</td>
<td class="xl25">7.7</td>
<td class="xl24">中频电路电源</td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>20</td>
<td align="right" x:num>4.2</td>
<td class="xl25">4.2</td>
<td class="xl24">场频脉冲输出</td>
<td></td>
<td align="right" x:num>46</td>
<td class="xl25">4.3</td>
<td class="xl25">4.3</td>
<td class="xl24">中频<font class="font9">AGC</font><font class="font8">滤波</font></td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>21</td>
<td align="right" x:num>1</td>
<td class="xl25">0.3</td>
<td class="xl24" style="mso-ignore: colspan" colspan="2">场频识别输出<font class="font9">50/L</font><font class="font8">,</font><font class="font9">60/H</font></td>
<td align="right" x:num>47</td>
<td class="xl25">3.8</td>
<td class="xl25">3.8</td>
<td class="xl24">中频输入</td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>22</td>
<td align="right" x:num>4.6</td>
<td class="xl25">4.6</td>
<td class="xl26">AFC<font class="font8">低通滤波</font></td>
<td></td>
<td align="right" x:num>48</td>
<td class="xl25">3.8</td>
<td class="xl25">3.8</td>
<td class="xl24">中频输入</td></tr>
<tr style="HEIGHT: 14.25pt" height="19">
<td style="HEIGHT: 14.25pt" align="right" height="19" x:num>23</td>
<td align="right" x:num>4</td>
<td class="xl25">4</td>
<td class="xl24">行振荡晶体外接端</td>
<td></td>
<td align="right" x:num>49</td>
<td class="xl25">0</td>
<td class="xl25">0</td>
<td class="xl24">中频部分地</td></tr>
<tr style="HEIGHT: 15pt" height="20">
<td style="HEIGHT: 15pt" align="right" height="20" x:num>24</td>
<td align="right" x:num>7</td>
<td class="xl25">7</td>
<td class="xl24">行启动电源</td>
<td></td>
<td align="right" x:num>50</td>
<td class="xl25">7</td>
<td class="xl25">7</td>
<td class="xl26">RF AGC<font class="font8">电压输出</font></td></tr>
<tr style="HEIGHT: 14.25pt" height="19">
<td style="HEIGHT: 14.25pt" align="right" height="19" x:num>25</td>
<td align="right" x:num>1</td>
<td class="xl25">1</td>
<td class="xl24">行频方波输出</td>
<td></td>
<td align="right" x:num>51</td>
<td class="xl25">3.8</td>
<td class="xl25">3.8</td>
<td class="xl24">音频信号输出</td></tr>
<tr style="HEIGHT: 14.25pt" height="19">
<td style="HEIGHT: 14.25pt" align="right" height="19" x:num>26</td>
<td align="right" x:num>1.2</td>
<td class="xl25">1.2</td>
<td class="xl24" style="mso-ignore: colspan" colspan="2">行逆程脉冲输入沙堡脉冲出</td>
<td align="right" x:num>52</td>
<td class="xl25">3.8</td>
<td class="xl25">3.8</td>
<td class="xl24">去加重</td></tr></tbody></table>
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2008-10-8 17:25:23   评论 分享淘帖
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