摘要: 本篇应用笔记描述了MAX2683 3.5GHz上变频器的特性。
本篇应用笔记描述了MAX2683 3.5 ghz上变频器的特性。文中给出了典型应用电路原理图,电路中包括用于3.55 ghz输出,1.6 ghz LO和350 mhz输入的匹配元件。噪~12.5dB, 8.6dB。【中文译文】、【中文译文】中文:中文:中文:中文:
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吉尔伯特MAX2683是基于单元的双平衡有源混频器,能够接收最高达3.5 ghz的射频输入并输出3.6 ghz的如果信号。MAX2683的特点是其可调节的偏置控制,变频增益,失配时的灵敏度下降和在紧凑结构下仍然很好的隔离。
【中文翻译】:中文翻译:
混频器的基本性质是频率变换。几乎在所有的发射机中都要用到这个性质。在典型的应用中,频率为f (MOD)的调制信号被注入到混频器的一个端口上,频率为f (LO)的本地振荡器(LO)信号注入到另一个端口。输出的射频(RF)信号被上变频到(MOD) + f (LO)。频率变换是由频率为f (MOD)的调制信号波形,因为(f (MOD) * t)与LO波形相乘得到的。根据三角函数乘法,我们得到下面的等式:
Cos (f (MOD) * t * Cos (f (LO) * t) = 1/2 Cos (f (LO) - f (MOD)±1/2 Cos (f (LO)±f (MOD))
在这个理想的乘法等式中,混频器的输出只包含频率为(LO) - f (MOD)和f (LO) + f (MOD)的信号,也就是说,原始的f (MOD)频率调制信号和本地振荡器f (LO)频率信号在上变频器射频输出端口被完全抑制了。
吉尔伯特(Gilbert)。将调制信号分解成共模成分和差模成分可以很好地理解这种放大器的工作原理。(1)、(2)、(3)、(3)、(3)根据对称的结构,共模成分改变两分支之间的电流,对于小信号来说,电路就像一个标准的共射极放大器。MAX2683基本放大器使用四个交叉耦合器件将调制信号以LO速率与±相乘,从而实现预期的双平衡混频器的特性。吉尔伯特(Gilbert)(1)、(1)、(1)、(2)、(3)、(3)、(3)、(3)。罗的正电压导致外边一组器件导通,使调制信号以LO速率与±相乘;负电压导致内部一组器件导通,也使调制信号以LO速率与±相乘。
max2683 + 2.7v, + 5.5v16 .。MAX2683吉尔伯特、乔治、乔治、乔治、乔治、乔治差分输出端口为单端或者差分应用提供了宽带、灵活的接口。max2683;这样用户可以通过调节电源电流获得更高的线性度以优化系统性能。用逻辑电平控制激活器件内部的倍频器,外部本地振荡器源既可以在全频也可以在半频下工作。对,对,对,对。图1* * max2683图2★★★★★★★★★性能特点的细节在下文中描述。
图1. 简化的MAX2683应用电路框图
图2. max2683
max2683吉伯特(Gilbert)。(1)、(1)、(2)、(3)吉伯特(Gilbert)、吉伯特(Gilbert)2.中文翻译:v (cc)。混频器的增益升高,压缩点就随之升高。因为偏置的改变将影响线性度,而这类变化会影响混频器产生的谐波和杂散信号电平。中文名称:中文名称:中文名称:中文名称:中文名称:中文名称:中文名称:中文意思:max2683频谱:55mA。减小电阻值能够提高线性度但是要以电源电流的升高为代价。增加电阻值可以降低电源电流却使线性度恶化。http://www.qqcn.cn/cn/ http://www.qqcn.cn/cn/
max2683、max2683MAX2683实现的增益量随着频率、工作温度、振荡器信号和偏置电平的变化而变化。中国科学院院士,中国科学院院士,中国科学院院士,中国科学院院士。给每一个接地引脚使用单独的、低感应系数的过孔连接到地平面。为了实现最佳性能,将器件封装上的裸露焊盘焊接到电路板的地平面。差分集电极开路RFOUT——和RFOUT +端口需要使用与V (CC)连接的外部上拉电感和输出匹配网络来优化增益性能。1 .中文:1 .中文:1 .中文:1 .中文:设计者可以参考这个表格开发最优的匹配电路以满足系统规范。
max2683;在基于吉尔伯特单元的混频器中,瞧信号的主要功能是在交叉耦合的四个器件的外部晶体管和内部晶体管之间切换导通通道。这需要相对小的功率。中文:吉伯特(Gilbert)增加输入给MAX2683上变频器的LO功率将使四个耦合器件和射极耦合对儿的晶体管饱和(实际上是“准饱和”)从而降低线性度。【中文翻译】:中文翻译:【中文译文】◆◆◆◆◆◆◆◆◆◆◆◆◆MAX2683 . 50欧姆 -5dBm。
max2683它既可以作为下变频器也可以作为上变频器。3.8GHz。中国科学院院士、院士、院士、院士。max2683,中国,中国,中国,中国,中国。(1)、(1)、(1)、(1)、(1)、(2)、(3)、(3)整整一个月的时间。【中文翻译】:中文翻译:中文翻译:以逻辑高电平驱动ENX2并将全频外部瞧连接至LOX1端口就可以关闭和旁路罗倍频器与LO滤波器。这是一个很好的例子。LOX1的最大频率范围是3.9 ghz, LOX2的频率范围是最高1.95 ghz。
吉尔伯特。混频器噪声系数主要来自四个集电极交叉耦合晶体管的散粒噪声、射极耦合对儿的两个晶体管的噪声和射极耦合对儿使用的两个反馈电阻的热噪声。http://www.chinac.cn/cn/或http://www.chinac.cn/cn/或http://www.chinac.cn/cn/cn/或http://www.chinac.cn/cn/。MAX2683: 12.5dB
为了实现最优的性能需要对三个端口进行适当的匹配。表1格提供了这三个端口完整的年代参数,频率范围从50 mhz到6 ghz。设计者可以参考此表格选择最佳的匹配电路来满足系统规范。本应用笔记包含一个展示了三个端口典型匹配电路的应用电路原理图。350MHz, 1.6GHz, 3.55GHz。
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频率。 | 5伏直流 | 5伏直流 | 3.3伏直流 | 3.3伏直流 | 频率。 | 5伏直流 | 5伏直流 | 3.3伏直流 | 3.3伏直流 | |
(MHz) | 振幅 | 学位 | 振幅 | 学位 | (MHz) | 振幅 | 学位 | 振幅 | 学位 | |
50 | 0.868 | -4.4 | 0.868 | -4.5 | 3050 | 0.566 | -147.1 | 0.557 | -154.6 | |
One hundred. | 0.851 | -7.7 | 0.850 | -7.9 | 3100 | 0.563 | -147.5 | 0.555 | -157.1 | |
150 | 0.817 | -13.9 | 0.813 | -16.4 | 3150 | 0.562 | -151.9 | 0.556 | -159.2 | |
200 | 0.801 | -10.1 | 0.797 | -11.6 | 3200 | 0.544 | -154.3 | 0.559 | -162.4 | |
250 | 0.816 | -11.8 | 0.814 | -12.5 | 3250 | 0.568 | -156.6 | 0.564 | -164.7 | |
300 | 0.831 | -21.1 | 0.830 | -22.5 | 3300 | 0.574 | -160.0 | 0.572 | -167.1 | |
350 | 0.791 | -22.4 | 0.789 | -25.0 | 3350 | 0.583 | -162.0 | 0.582 | -169.4 | |
400 | 0.770 | -27.4 | 0.578 | -30.0 | 3400 | 0.593 | -164.0 | 0.592 | -171.2 | |
450 | 0.710 | -27.2 | 0.639 | -30.6 | 3450 | 0.604 | -167.3 | 0.603 | -174.2 | |
500 | 0.715 | -28.3 | 0.700 | -29.9 | 3500 | 0.617 | -169.1 | 0.616 | -176.4 | |
550 | 0.713 | -30.8 | 0.701 | -32.2 | 3550 | 0.631 | -171.4 | 0.636 | -178.7 | |
600 | 0.705 | -33.3 | 0.691 | -34.8 | 3600 | 0.644 | -173.8 | 0.644 | 179.0 | |
650 | 0.698 | -35.8 | 0.688 | -37.5 | 3650 | 0.657 | -176.2 | 0.656 | 176.3 | |
700 | 0.690 | -38.4 | 0.680 | -40.1 | 3700 | 0.669 | -178.8 | 0.665 | 173.5 | |
750 | 0.682 | -40.9 | 0.672 | -42.6 | 3750 | 0.678 | 178.6 | 0.672 | 170.8 | |
800 | 0.672 | -43.1 | 0.662 | -44.9 | 3800 | 0.685 | 175.8 | 0.677 | 168.1 | |
850 | 0.665 | -45.0 | 0.654 | -47.0 | 3850 | 0.688 | 172.2 | 0.677 | 165.2 | |
900 | 0.660 | -47.0 | 0.648 | -49.1 | 3900 | 0.689 | 170.1 | 0.674 | 162.0 | |
950 | 0.654 | -49.1 | 0.643 | -51.3 | 3950 | 0.684 | 167.0 | 0.666 | 158.9 | |
1000 | 0.651 | -50.9 | 0.638 | -52.0 | 4000 | 0.675 | 164.0 | 0.654 | 155.0 | |
1050 | 0.635 | -55.1 | 0.623 | -58.0 | 4050 | 0.661 | 163.3 | 0.639 | 136.0 | |
1100 | 0.635 | -58.1 | 0.622 | -61.5 | 4100 | 0.648 | 160.1 | 0.624 | 153.7 | |
1150 | 0.633 | -60.3 | 0.618 | -63.6 | 4150 | 0.632 | 158.2 | 0.608 | 151.2 | |
1200 | 0.631 | -61.9 | 0.617 | -65.6 | 4200 | 0.615 | 155.7 | 0.591 | 148.8 | |
1250 | 0.631 | -63.5 | 0.619 | -67.1 | 4250 | 0.599 | 152.2 | 0.575 | 146.5 | |
1300 | 0.633 | -65.2 | 0.618 | -68.6 | 4300 | 0.584 | 151.9 | 0.561 | 144.4 | |
1350 | 0.633 | -66.7 | 0.615 | -70.4 | 4350 | 0.571 | 149.7 | 0.550 | 142.4 | |
1400 | 0.630 | -68.7 | 0.615 | -72.4 | 4400 | 0.561 | 147.8 | 0.541 | 140.7 | |
1450 | 0.630 | -70.7 | 0.615 | -74.5 | 4450 | 0.553 | 146.7 | 0.535 | 139.0 | |
1500 | 0.630 | -72.7 | 0.614 | -76.5 | 4500 | 0.549 | 144.2 | 0.532 | 137.1 | |
1550 | 0.629 | -74.8 | 0.614 | -78.1 | 4550 | 0.547 | 140.5 | 0.532 | 133.4 | |
1600 | 0.627 | -77.3 | 0.612 | -81.0 | 4600 | 0.548 | 138.8 | 0.534 | 131.8 | |
1650 | 0.622 | -79.9 | 0.607 | -82.2 | 4650 | 0.552 | 137.3 | 0.541 | 130.4 | |
1700 | 0.619 | -82.5 | 0.604 | -85.9 | 4700 | 0.558 | 135.9 | 0.548 | 129.1 | |
1750 | 0.618 | -85.0 | 0.604 | -89.4 | 4750 | 0.566 | 134.4 | 0.556 | 127.5 | |
1800 | 0.618 | -87.6 | 0.605 | -92.1 | 4800 | 0.577 | 133.1 | 0.569 | 126.2 | |
1850 | 0.616 | -90.5 | 0.604 | -95.0 | 4850 | 0.589 | 131.7 | 0.581 | 124.9 | |
1900 | 0.615 | -93.3 | 0.602 | -98.2 | 4900 | 0.604 | 130.4 | 0.595 | 123.6 | |
1950 | 0.612 | -96.0 | 0.600 | -101.0 | 4950 | 0.616 | 128.9 | 0.607 | 122.1 | |
2000 | 0.612 | -98.7 | 0.601 | -103.2 | 5000 | 0.628 | 127.3 | 0.619 | 120.4 | |
2050 | 0.609 | -96.7 | 0.600 | -100.9 | 5050 | 0.671 | 127.8 | 0.644 | 120.9 | |
2100 | 0.614 | -98.1 | 0.605 | -102.6 | 5100 | 0.660 | 127.9 | 0.644 | 121.2 | |
2150 | 0.620 | -100.0 | 0.613 | -105.1 | 5150 | 0.663 | 127.7 | 0.647 | 121.1 | |
2200 | 0.626 | -102.0 | 0.618 | -107.5 | 5200 | 0.668 | 127.2 | 0.651 | 120.1 | |
2250 | 0.634 | -105.1 | 0.626 | -109.9 | 5250 | 0.671 | 126.2 | 0.654 | 119.4 | |
2300 | 0.640 | -107.5 | 0.632 | -112.4 | 5300 | 0.674 | 124.3 | 0.653 | 117.9 | |
2350 | 0.644 | -110.1 | 0.636 | -115.1 | 5350 | 0.672 | 123.1 | 0.650 | 116.1 | |
2400 | 0.647 | -112.2 | 0.636 | -118.1 | 5400 | 0.668 | 121.4 | 0.644 | 114.3 | |
2450 | 0.642 | -115.0 | 0.634 | -121.0 | 5450 | 0.659 | 119.4 | 0.632 | 112.4 | |
2500 | 0.645 | -116.7 | 0.632 | -123.9 | 5500 | 0.647 | 117.7 | 0.618 | 110.9 | |
2550 | 0.642 | -119.3 | 0.626 | -126.7 | 5550 | 0.633 | 116.4 | 0.603 | 108.0 | |
2600 | 0.636 | -122.0 | 0.616 | -129.5 | 5600 | 0.620 | 114.6 | 0.591 | 107.4 | |
2650 | 0.627 | -124.4 | 0.604 | -132.1 | 5650 | 0.608 | 113.1 | 0.581 | 106.5 | |
2700 | 0.616 | -127.1 | 0.596 | -134.3 | 5700 | 0.598 | 111.4 | 0.572 | 105.2 | |
2750 | 0.608 | -129.2 | 0.590 | -136.4 | 5750 | 0.587 | 109.6 | 0.563 | 103.3 | |
2800 | 0.600 | -131.1 | 0.584 | -138.8 | 5800 | 0.577 | 108.1 | 0.554 | 101.4 | |
2850 | 0.592 | -134.2 | 0.577 | -141.4 | 5850 | 0.569 | 106.2 | 0.547 | 99.9 | |
2900 | 0.583 | -136.7 | 0.569 | -144.1 | 5900 | 0.562 | 105.1 | 0.541 | 98.5 | |
2950 | 0.576 | -139.2 | 0.562 | -146.7 | 5950 | 0.556 | 103.0 | 0.557 | 97.1 | |
3000 | 0.570 | -141.7 | 0.558 | -149.2 | 6000 | 0.551 | 102.1 | 0.553 | 96.0 |
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频率。 | 5伏直流 | 5伏直流 | 3.3伏直流 | 3.3伏直流 | 频率。 | 5伏直流 | 5伏直流 | 3.3伏直流 | 3.3伏直流 | |
(MHz) | 振幅 | 学位 | 振幅 | 学位 | (MHz) | 振幅 | 学位 | 振幅 | 学位 | |
50 | 0.648 | -30.3 | 0.648 | -30.4 | 3050 | 0.155 | 173.0 | 0.162 | 170.5 | |
One hundred. | 0.460 | -33.8 | 0.459 | -39.9 | 3100 | 0.157 | 169.0 | 0.164 | 165.7 | |
150 | 0.382 | -32.2 | 0.381 | -32.2 | 3150 | 0.159 | 165.0 | 0.167 | 161.5 | |
200 | 0.343 | -30.7 | 0.342 | -30.7 | 3200 | 0.162 | 161.0 | 0.169 | 157.7 | |
250 | 0.318 | -29.8 | 0.318 | -29.0 | 3250 | 0.165 | 158.0 | 0.173 | 154.4 | |
300 | 0.301 | -29.6 | 0.300 | -29.8 | 3300 | 0.168 | 155.0 | 0.175 | 151.6 | |
350 | 0.287 | -30.0 | 0.287 | -30.2 | 3350 | 0.171 | 152.0 | 0.177 | 149.5 | |
400 | 0.276 | -30.7 | 0.276 | -30.9 | 3400 | 0.173 | 150.0 | 0.179 | 147.7 | |
450 | 0.266 | -30.7 | 0.267 | -32.1 | 3450 | 0.173 | 149.0 | 0.178 | 146.1 | |
500 | 0.260 | -33.3 | 0.261 | 33.6 | 3500 | 0.172 | 147.0 | 0.177 | 144.8 | |
550 | 0.260 | -33.3 | 0.261 | -33.6 | 3550 | 0.170 | 146.0 | 0.174 | 143.6 | |
600 | 0.255 | -35.1 | 0.250 | -37.0 | 3600 | 0.167 | 145.0 | 0.171 | 142.9 | |
650 | 0.250 | -37.0 | 0.248 | -39.4 | 3650 | 0.162 | 145.0 | 0.166 | 142.4 | |
700 | 0.245 | -41.1 | 0.245 | -41.5 | 3700 | 0.155 | 145.0 | 0.160 | 142.1 | |
750 | 0.244 | -43.4 | 0.245 | -43.8 | 3750 | 0.148 | 144.0 | 0.152 | 141.9 | |
800 | 0.244 | -45.6 | 0.245 | -46.1 | 3800 | 0.140 | 144.0 | 0.143 | 141.2 | |
850 | 0.250 | -47.7 | 0.246 | -48.3 | 3850 | 0.131 | 144.0 | 0.134 | 141.4 | |
900 | 0.245 | -50.0 | 0.247 | -50.7 | 3900 | 0.122 | 144.0 | 0.126 | 140.5 | |
950 | 0.246 | -52.3 | 0.247 | -53.3 | 3950 | 0.112 | 143.0 | 0.116 | 139.4 | |
1000 | 0.246 | -54.7 | 0.246 | -55.0 | 4000 | 0.102 | 142.0 | 0.106 | 137.9 | |
1050 | 0.242 | -59.1 | 0.242 | -60.5 | 4050 | 0.100 | 142.0 | 0.104 | 138.4 | |
1100 | 0.240 | -61.5 | 0.240 | -62.3 | 4100 | 0.091 | 141.0 | 0.095 | 137.1 | |
1150 | 0.238 | -63.1 | 0.238 | -63.9 | 4150 | 0.083 | 139.0 | 0.087 | 135.1 | |
1200 | 0.235 | -64.7 | 0.236 | -65.5 | 4200 | 0.074 | 138.0 | 0.079 | 132.5 | |
1250 | 0.233 | -66.2 | 0.233 | -67.1 | 4250 | 0.067 | 135.0 | 0.071 | 129.8 | |
1300 | 0.230 | -68.0 | 0.230 | -68.9 | 4300 | 0.060 | 133.0 | 0.065 | 126.7 | |
1350 | 0.226 | -69.7 | 0.226 | -70.5 | 4350 | 0.055 | 129.0 | 0.060 | 123.0 | |
1400 | 0.222 | -71.5 | 0.222 | -72.5 | 4400 | 0.050 | 126.0 | 0.055 | 119.1 | |
1450 | 0.218 | -73.6 | 0.218 | -74.6 | 4450 | 0.046 | 123.0 | 0.051 | 116.3 | |
1500 | 0.214 | -75.9 | 0.214 | -77.0 | 4500 | 0.045 | 123.0 | 0.050 | 115.8 | |
1550 | 0.209 | -78.4 | 0.211 | -79.5 | 4550 | 0.045 | 124.0 | 0.050 | 117.2 | |
1600 | 0.205 | -81.1 | 0.207 | -82.2 | 4600 | 0.047 | 126.0 | 0.053 | 118.8 | |
1650 | 0.202 | -84.0 | 0.204 | -85.2 | 4650 | 0.053 | 128.0 | 0.058 | 121.2 | |
1700 | 0.199 | -87.1 | 0.200 | -88.4 | 4700 | 0.060 | 129.0 | 0.064 | 122.7 | |
1750 | 0.197 | -90.5 | 0.199 | -91.9 | 4750 | 0.068 | 130.0 | 0.072 | 123.9 | |
1800 | 0.195 | -94.0 | 0.197 | -95.4 | 4800 | 0.076 | 130.0 | 0.064 | 122.5 | |
1850 | 0.195 | -97.4 | 0.197 | -99.0 | 4850 | 0.083 | 130.0 | 0.086 | 125.3 | |
1900 | 0.195 | -97.5 | 0.197 | -102.4 | 4900 | 0.091 | 131.0 | 0.094 | 126.4 | |
1950 | 0.194 | -101.0 | 0.195 | -106.6 | 4950 | 0.099 | 132.0 | 0.102 | 127.6 | |
2000 | 0.193 | -105.0 | 0.195 | -109.5 | 5000 | 0.100 | 133.0 | 0.111 | 128.6 | |
2050 | 0.196 | -110.0 | 0.199 | -111.4 | 5050 | 0.122 | 132.0 | 0.125 | 128.0 | |
2100 | 0.199 | -112.0 | 0.202 | -113.7 | 5100 | 0.129 | 132.0 | 0.131 | 128.0 | |
2150 | 0.201 | -114.0 | 0.204 | -116.0 | 5150 | 0.134 | 133.0 | 0.137 | 129.4 | |
2200 | 0.202 | -116.0 | 0.206 | -128.1 | 5200 | 0.139 | 133.0 | 0.142 | 129.2 | |
2250 | 0.204 | -118.0 | 0.208 | -120.0 | 5250 | 0.142 | 133.0 | 0.144 | 128.5 | |
2300 | 0.205 | -120.0 | 0.209 | -122.0 | 5300 | 0.144 | 132.0 | 0.146 | 127.4 | |
2350 | 0.205 | -122.0 | 0.209 | -123.8 | 5350 | 0.144 | 130.0 | 0.146 | 125.5 | |
2400 | 0.204 | -123.0 | 0.208 | -125.1 | 5400 | 0.141 | 127.0 | 0.142 | 123.2 | |
2450 | 0.202 | -125.0 | 0.206 | -127.4 | 5450 | 0.136 | 125.0 | 0.137 | 120.1 | |
2500 | 0.200 | -127.0 | 0.204 | -129.7 | 5500 | 0.129 | 122.0 | 0.131 | 116.5 | |
2550 | 0.197 | -129.0 | 0.202 | -132.4 | 5550 | 0.121 | 1118.0 | 0.121 | 112.9 | |
2600 | 0.193 | -132.0 | 0.198 | -135.7 | 5600 | 0.110 | 113.0 | 0.117 | 106.4 | |
2650 | 0.189 | -136.0 | 0.193 | -139.6 | 5650 | 0.098 | 106.0 | 0.100 | 99.3 | |
2700 | 0.183 | -141.0 | 0.187 | -144.4 | 5700 | 0.088 | 99.0 | 0.091 | 190.9 | |
2750 | 0.175 | -146.0 | 0.179 | -149.4 | 5750 | 0.079 | 189.0 | 0.083 | 181.1 | |
2800 | 0.168 | -151.0 | 0.172 | -154.6 | 5800 | 0.070 | 78.0 | 0.076 | 169.3 | |
2850 | 0.162 | -156.0 | 0.167 | -159.9 | 5850 | 0.065 | 63.0 | 0.073 | 155.9 | |
2900 | 0.157 | -161.0 | 0.163 | -165.1 | 5900 | 0.063 | 49.0 | 0.073 | 142.0 | |
2950 | 0.155 | -167.0 | 0.161 | -170.9 | 5950 | 0.064 | 33.0 | 0.075 | 28.5 | |
3000 | 0.153 | -173.0 | 0.160 | -176.7 | 6000 | 0.067 | 18.0 | 0.079 | 16.1 |
[1] [1] [1] [11
频率。 | 5伏直流 | 5伏直流 | 3.3伏直流 | 3.3伏直流 | 频率。 | 5伏直流 | 5伏直流 | 3.3伏直流 | 3.3伏直流 | |
(MHz) | 振幅 | 学位 | 振幅 | 学位 | (MHz) | 振幅 | 学位 | 振幅 | 学位 | |
50 | 0.756 | -18.6 | 0.775 | -19.6 | 1550 | 0.304 | -92.1 | 0.306 | -93.3 | |
One hundred. | 0.619 | -26.4 | 0.625 | -27.2 | 1600 | 0.301 | -94.5 | 0.304 | -95.7 | |
150 | 0.537 | -29.1 | 0.599 | -29.7 | 1650 | 0.299 | -97.1 | 0.303 | -98.4 | |
200 | 0.488 | -30.7 | 0.489 | -31.2 | 1700 | 0.299 | -99.8 | 0.302 | -101.1 | |
250 | 0.455 | -32.2 | 0.456 | -32.7 | 1750 | 0.298 | -102.3 | 0.300 | -103.9 | |
300 | 0.431 | -34.1 | 0.432 | -34.5 | 1800 | 0.298 | -105.4 | 0.301 | -106.7 | |
350 | 0.411 | -35.1 | 0.413 | -36.6 | 1850 | 0.299 | -108.1 | 0.301 | -109.5 | |
400 | 0.395 | -38.4 | 0.397 | -38.8 | 1900 | 0.299 | -110.8 | 0.303 | -112.2 | |
450 | 0.382 | -40.8 | 0.382 | -41.3 | 1950 | 0.302 | -113.4 | 0.305 | -114.7 | |
500 | 0.370 | -43.4 | 0.372 | -43.9 | 2000 | 0.303 | -115.9 | 0.307 | -117.4 | |
550 | 0.362 | -46.1 | 0.362 | -46.6 | 2050 | 0.310 | -117.1 | 0.314 | -118.6 | |
600 | 0.354 | -48.8 | 0.355 | -49.4 | 2100 | 0.315 | -119.2 | 0.319 | -120.7 | |
650 | 0.348 | -51.6 | 0.349 | -52.2 | 2150 | 0.305 | -115.0 | 0.324 | -122.7 | |
700 | 0.344 | -54.3 | 0.345 | -55.9 | 2200 | 0.324 | -123.0 | 0.329 | -124.6 | |
750 | 0.341 | -57.1 | 0.342 | -57.9 | 2250 | 0.327 | -124.8 | 0.332 | -126.4 | |
800 | 0.338 | -59.9 | 0.340 | -60.5 | 2300 | 0.330 | -126.5 | 0.335 | -128.2 | |
850 | 0.337 | -62.4 | 0.337 | -632.0 | 2350 | 0.334 | -128.1 | 0.327 | -129.9 | |
900 | 0.335 | -65.0 | 0.336 | -65.7 | 2400 | 0.335 | -129.7 | 0.339 | -131.4 | |
950 | 0.332 | -67.3 | 0.334 | -68.0 | 2450 | 0.335 | -131.4 | 0.337 | -133.2 | |
1000 | 0.331 | -69.4 | 0.332 | -70.2 | 2500 | 0.333 | -133.1 | 0.336 | -137.9 | |
1050 | 0.326 | -72.1 | 0.327 | -73.4 | 2550 | 0.330 | -134.7 | 0.333 | -136.7 | |
1100 | 0.325 | -74.6 | 0.325 | -75.6 | 2600 | 0.325 | -136.8 | 0.330 | -138.7 | |
1150 | 0.323 | -76.3 | 0.325 | -77.1 | 2650 | 0.319 | -138.8 | 0.323 | -140.8 | |
1200 | 0.322 | -78.1 | 0.323 | -78.9 | 2700 | 0.312 | -140.7 | 0.316 | -142.9 | |
1250 | 0.319 | -79.8 | 0.321 | -80.7 | 2750 | 0.305 | -142.6 | 0.309 | -144.9 | |
1300 | 0.316 | -81.5 | 0.318 | -82.5 | 2800 | 0.299 | -144.7 | 0.303 | -146.0 | |
1350 | 0.327 | -71.1 | 0.315 | -84.4 | 2850 | 0.295 | -146.9 | 0.298 | -147.1 | |
1400 | 0.312 | -85.4 | 0.313 | -83.4 | 2900 | 0.291 | -149.1 | 0.293 | -151.4 | |
1450 | 0.308 | -87.4 | 0.311 | -88.5 | 2950 | 0.287 | -151.4 | 0.289 | -153.7 | |
1500 | 0.306 | -89.7 | 0.309 | -90.9 | 3000 | 0.285 | -153.6 | 0.287 | -156.0 |
【中文译文
频率。 | 5伏直流 | 5伏直流 | 3.3伏直流 | 3.3伏直流 | 频率。 | 5伏直流 | 5伏直流 | 3.3伏直流 | 3.3伏直流 | |
(MHz) | 振幅 | 学位 | 振幅 | 学位 | (MHz) | 振幅 | 学位 | 振幅 | 学位 | |
50 | 0.883 | -6.1 | 0.912 | -6.9 | 3050 | 0.739 | 129.7 | 0.738 | 129.6 | |
One hundred. | 0.962 | -11.1 | 0.883 | -11.5 | 3100 | 0.729 | 126.8 | 0.729 | 126.8 | |
150 | 0.838 | -14.6 | 0.857 | -14.7 | 3150 | 0.710 | 124.5 | 0.711 | 124.7 | |
200 | 0.827 | -16.5 | 0.845 | -16.5 | 3200 | 0.686 | 122.6 | 0.687 | 122.8 | |
250 | 0.841 | -17.6 | 0.859 | -18.3 | 3250 | 0.654 | 120.8 | 0.657 | 121.1 | |
300 | 0.854 | -20.3 | 0.871 | -21.1 | 3300 | 0.620 | 119.0 | 0.625 | 119.4 | |
350 | 0.863 | -23.0 | 0.878 | -24.2 | 3350 | 0.589 | 116.8 | 0.595 | 117.4 | |
400 | 0.863 | -26.4 | 0.877 | -27.3 | 3400 | 0.564 | 114.6 | 0.570 | 115.0 | |
450 | 0.858 | -29.7 | 0.872 | -30.7 | 3450 | 0.543 | 111.7 | 0.551 | 112.2 | |
500 | 0.851 | -33.3 | 0.864 | -34.3 | 3500 | 0.532 | 108.6 | 0.541 | 109.1 | |
550 | 0.841 | -37.6 | 0.853 | -38.7 | 3550 | 0.530 | 105.6 | 0.541 | 106.2 | |
600 | 0.827 | -42.4 | 0.840 | -43.6 | 3600 | 0.539 | 103.6 | 0.550 | 103.8 | |
650 | 0.812 | -47.8 | 0.825 | -49.1 | 3650 | 0.558 | 101.0 | 0.570 | 101.8 | |
700 | 0.793 | -53.7 | 0.807 | -55.2 | 3700 | 0.583 | 99.9 | 0.597 | 100.5 | |
750 | 0.774 | -59.7 | 0.787 | -61.6 | 3750 | 0.613 | 99.4 | 0.628 | 99.9 | |
800 | 0.756 | -65.6 | 0.762 | -67.7 | 3800 | 0.644 | 99.4 | 0.660 | 99.8 | |
850 | 0.739 | -71.0 | 0.737 | -73.1 | 3850 | 0.672 | 99.7 | 0.690 | 99.9 | |
900 | 0.723 | -75.7 | 0.714 | -77.1 | 3900 | 0.694 | 100.4 | 0.713 | 100.2 | |
950 | 0.709 | -79.1 | 0.700 | -79.9 | 3950 | 0.707 | 100.1 | 0.726 | 100.3 | |
1000 | 0.712 | -83.3 | 0.715 | -83.7 | 4000 | 0.706 | 100.5 | 0.725 | 100.3 | |
1050 | 0.715 | -87.0 | 0.711 | -87.6 | 4050 | 0.690 | 103.2 | 0.709 | 102.8 | |
1100 | 0.718 | -89.3 | 0.717 | -89.4 | 4100 | 0.667 | 102.9 | 0.686 | 102.3 | |
1150 | 0.723 | -91.1 | 0.723 | -91.0 | 4150 | 0.635 | 101.9 | 0.623 | 101.2 | |
1200 | 0.725 | -93.0 | 0.727 | -93.2 | 4200 | 0.599 | 100.1 | 0.615 | 99.3 | |
1250 | 0.723 | -95.4 | 0.726 | -95.6 | 4250 | 0.563 | 97.3 | 0.578 | 96.2 | |
1300 | 0.715 | -98.1 | 0.720 | -98.3 | 4300 | 0.531 | 93.2 | 0.547 | 92.0 | |
1350 | 0.702 | -101.0 | 0.708 | -101.0 | 4350 | 0.512 | 87.8 | 0.527 | 86.7 | |
1400 | 0.684 | -104.6 | 0.691 | -104.0 | 4400 | 0.505 | 81.7 | 0.521 | 80.6 | |
1450 | 0.661 | -108.6 | 0.669 | -109.0 | 4450 | 0.511 | 75.7 | 0.527 | 74.7 | |
1500 | 0.633 | -112.8 | 0.642 | -113.0 | 4500 | 0.532 | 70.8 | 0.547 | 69.8 | |
1550 | 0.692 | -116.9 | 0.621 | -117.3 | 4550 | 0.562 | 57.3 | 0.576 | 86.4 | |
1600 | 0.594 | -121.7 | 0.609 | -122.2 | 4600 | 0.594 | 65.3 | 0.609 | 64.4 | |
1650 | 0.577 | -126.5 | 0.589 | -127.0 | 4650 | 0.627 | 64.4 | 0.641 | 63.6 | |
1700 | 0.569 | -130.9 | 0.581 | -131.6 | 4700 | 0.656 | 64.7 | 0.669 | 63.9 | |
1750 | 0.567 | -135.5 | 0.581 | -136.1 | 4750 | 0.677 | 66.0 | 0.689 | 65.2 | |
1800 | 0.571 | -140.1 | 0.585 | -140.7 | 4800 | 0.694 | 67.7 | 0.705 | 67.0 | |
1850 | 0.580 | -144.0 | 0.595 | -144.9 | 4850 | 0.703 | 69.8 | 0.711 | 69.0 | |
1900 | 0.592 | -148.2 | 0.607 | -148.9 | 4900 | 0.706 | 71.9 | 0.715 | 71.1 | |
1950 | 0.608 | -151.0 | 0.623 | -152.6 | 4950 | 0.702 | 73.6 | 0.710 | 72.8 | |
2000 | 0.624 | -155.0 | 0.639 | -156.9 | 5000 | 0.691 | 75.0 | 0.699 | 74.2 | |
2050 | 0.651 | -156.0 | 0.667 | -157.7 | 5050 | 0.697 | 77.1 | 0.705 | 76.3 | |
2100 | 0.674 | -166.5 | 0.689 | -151.3 | 5100 | 0.694 | 76.8 | 0.702 | 75.7 | |
2150 | 0.689 | -163.5 | 0.704 | -167.7 | 5150 | 0.684 | 74.5 | 0.692 | 73.6 | |
2200 | 0.704 | -166.7 | 0.717 | -167.8 | 5200 | 0.665 | 70.8 | 0.673 | 69.7 | |
2250 | 0.711 | -170.3 | 0.723 | -171.5 | 5250 | 0.644 | 65.9 | 0.651 | 64.7 | |
2300 | 0.703 | -174.0 | 0.714 | -175.2 | 5300 | 0.624 | 60.2 | 0.631 | 59.0 | |
2350 | 0.687 | -177.0 | 0.695 | -178.4 | 5350 | 0.607 | 54.3 | 0.613 | 53.9 | |
2400 | 0.669 | -179.9 | 0.677 | 178.6 | 5400 | 0.592 | 48.9 | 0.598 | 47.5 | |
2450 | 0.647 | 176.0 | 0.652 | 175.3 | 5450 | 0.581 | 44.5 | 0.585 | 43.3 | |
2500 | 0.622 | 173.6 | 0.627 | 172.3 | 5500 | 0.573 | 41.7 | 0.578 | 40.5 | |
2550 | 0.604 | 170.5 | 0.609 | 169.2 | 5550 | 0.569 | 40.3 | 0.574 | 39.1 | |
2600 | 0.592 | 166.9 | 0.597 | 165.6 | 5600 | 0.567 | 39.7 | 0.570 | 38.6 | |
2650 | 0.589 | 163.0 | 0.593 | 161.7 | 5650 | 0.565 | 40.1 | 0.569 | 39.1 | |
2700 | 0.594 | 158.8 | 0.590 | 157.7 | 5700 | 0.565 | 41.2 | 0.568 | 40.2 | |
2750 | 0.609 | 154.4 | 0.612 | 153.4 | 5750 | 0.566 | 42.6 | 0.569 | 41.7 | |
2800 | 0.631 | 149.9 | 0.634 | 149.0 | 5800 | 0.570 | 43.7 | 0.572 | 42.9 | |
2850 | 0.656 | 145.3 | 0.658 | 144.6 | 5850 | 0.576 | 45.1 | 0.580 | 44.3 | |
2900 | 0.682 | 141.4 | 0.683 | 140.8 | 5900 | 0.583 | 46.0 | 0.586 | 45.5 | |
2950 | 0.709 | 137.6 | 0.710 | 137.2 | 5950 | 0.597 | 47.0 | 0.595 | 46.3 | |
3000 | 0.729 | 133.9 | 0.728 | 133.6 | 6000 | 0.605 | 47.4 | 0.609 | 46.7 |
吉尔伯特。下面两个等式描述了线性度动态范围和无杂散的动态范围:
线性动态范围= P (1 db) - (NF -114 + G + 3 db dBm日志(10)+ 10 (BW)]
无杂散动态范围= 2/3 [IP (3) - G - NF -10日志(10)(BW) + 114 dBm)
其中P (1 dB)是混频器在1 dB增益压缩点的输出功率(以dBm为单位),NF是混频器的噪声系数(以分贝为单位),G是混频器的变频增益(以分贝为单位),BW是混频器的带宽(以分贝为单位),IP(3)是输出三阶截取点(以分贝为单位)。这些等式说明动态范围是噪声系数、输出压缩点、截取点和增益的函数。【中文译文】max2683“”“”“”。改变偏置电阻时应该在线性度和电源电流之间作出权衡折衷的选择。
图3所示为一个典型的上变频器应用电路。吉伯特(Gilbert)“”“”“”“”“”“”“”“”“”“”。【参考译文】【中文译文】1 . http://http://jinjinjinjinjinjinjinjinjinjin.com。混频器的输出需要外部匹配网络将高输出阻抗转换成较低阻抗以满足系统要求。这种阻抗转换和差分至单端结构的转换需要使用一个平衡非平衡转换器或者一个阻抗匹配转换器。应用电路的测试数据如表2所示。
图3. max2683
(测试条件:V (CC) = + 5.0 V, R(偏见)k = 1.2欧姆/ ENX2 \ =接地,f (RFIN) = 350 mhz, P (RFIN) = -20 dbm, f (LO) = 1600 mhz, P (LO) = 5 dbm;所有输入输出端口的终端电阻都为50欧姆;RFOUT +和RFOUT——匹配至单端50欧姆负载;除非特殊声明,T (A) = + 25°c)
参数 | 条件 | 测试 | 单位 | |
输入频率范围 | 注1 | 350 | 兆赫 | |
射频输出频率范围 | 注1 | 3.55 | GHz | |
LOX2频率范围 | 1.6 | GHz | ||
LOX1频率范围 | N/A | GHz | ||
转换增益 | f(LOX2) = 1600MHz, f(RFOUT) = 3.55GHz, V(CC) = +5V | 8.6 | dB | |
增益随温度变化 | T(A) = -40℃~ +85℃,V(CC) = +5V | TBD | dB | |
输入1dB压缩点 | f(LOX2) = 1600MHz, f(RFOUT) = 3.55GHz, V(CC) = +5V | -6 | dBm | |
输入三阶截点 | f(LOX2) = 1600MHz, f(RFOUT) = 3.55GHz, V(CC) = +5V,注2 | + 1.3 | dBm | |
输入二阶截点 | f(LOX2) = 1600MHz, f(RFOUT)= 3.55GHz, V(CC) = +5V | + 42.6 | dBm | |
噪声图 | TBD | dB | ||
输入返回损耗 | 在350兆赫 | & lt; -20 | dB | |
RFIN处泄漏 | / enx2 \ = GND | f(RFIN) = 1 × f(LO) | -42年 | dBm |
f(RFIN) = 2 * f(LO) | -38年 | |||
f(RFIN) = 3 × f(LO) | -49年 | |||
RFIN处LOX1泄漏 | /ENX2\ = V(cc) | f(rout)= 1 × f(LO) | N/A | dBm |
在IFOUT+, rout -漏液 | / enx2 \ = GND | f(rout) = 1 × f(LO) | -32.7 | dBm |
f(rout) = 2 × f(LO) | -16.4 | |||
f(rout) = 3 × f(LO) | -53.1 | |||
漏电在IFOUT+, rout - | /ENX2\ = V(cc) | f(rout) = 1 × f(LO) | -39年 | dBm |
LOX1, LOX2输入返回损耗 | -18年 | dB |
注释1.本器件是专为此特定的频率范围设计的。在此频率范围之外也可能工作但是性能不能够保证。
注释2.使用350 mhz和351 mhz的两个单音信号测试IIP3,每个单音信号-20 dbm, f (RFLO) = 1.6 ghz。
注释3.IIP2是在f (RFIIN) = 350 mhz, P (RFIN) = -20 dbm, f (LO) = 1.6 ghz的条件下测量的。
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