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LTC5562

推荐用于新设计

LF至7MHz宽带低功率有源混频器

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产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。
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概述

  • 宽带频率范围至 7GHz
  • 低功率：2.7V 至 3.6V，40mA 电源
  • 电源电流可调节到低至 15mA
  • 能够进行上变频或下变频
  • OIP3：在 3.6GHz 输出频率时为 +20dBm
  • 转换增益：+1dB
  • 低 LO 驱动功率：–4dBm 至 +2dBm
  • 低阻抗匹配在停机期间得到保持
  • 启用控制，10μA 停机电流
  • 2kV ESD (HBM 和 CDM)
  • –40℃ 至 105℃ 工作温度范围
  • 小外形 2mm x 2mm 10 引脚 QFN 封装

LTC5562是一款通用型低功率混频器，专为要求宽输入带宽、低失真和低LO泄漏的应用而优化。该混频器可用于上变频或下变频应用，并提供一个1dB的标称转换增益。差分输入专为用于1:1传输线路巴伦而优化，输入在30MHz至7GHz范围内具有50Ω宽带匹配。

LO可以是差分或单端，并且只需要–1dBm的LO功率就能实现卓越的失真和噪声性能。LO输入端上的阻抗匹配在关断期间得到保持。这款混频器可提供低LO泄漏，大幅减少了输出滤波满足LO抑制要求的需要。

LTC5562采用一个3.3V电源以实现低功耗，而且启用控制可使器件关断以进一步节省功率。总的混频器电流可通过简单地增设一个与LGND引脚串联的电阻器进行调节，以适合要求更低功率的应用。


应用
  • 便携式无线电
  • 便携式测试仪表
  • 无线基础设施
  • 固定无线接入设备
  • VHF和UHF混频器
  • 无线中继器
LTC5562
LF至7MHz宽带低功率有源混频器
3.6GHz Upconverting Mixer Conversion Gain, OIP3 and NF vs fOUT PLO = –2dBm, ITOTAL = 35mA (R1 = 5) Package Image 1
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参考资料

数据手册 1

用户手册 1

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工具及仿真模型

ADIsimRF

ADIsimRF是一款简单易用的RF信号链计算工具。可以计算和导出多达50级的信号链级联增益、噪声、失真和功耗并绘制其曲线。ADIsimRF还包括丰富的ADI射频和混合信号元件的器件模型数据库。

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S-参数 1

评估套件

eval board
schematic 1
DC2483A-B

LTC5562 - Low Power Mixer Demo Board Set Up for Downconversion Applications with IF Output Turned to 10MHz to 550MHz

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产品详情

The LTC5562 is a versatile low power mixer optimized for applications requiring very wide input bandwidth, low distortion, and low LO leakage. This mixer can be used for either upconverting or downconverting applications, and provides a nominal conversion gain of 1dB. Demonstration circuit 2483A-A showcases the LTC5562 mixer for upconverting applications while demonstration circuit 2483A-B is tuned for downconverting applications. The differential inputs are optimized for use with 1:1 transmission- line baluns, allowing very wideband impedance matching. The LTC5562 uses a 3.3V supply for low power consumption and an enable pin allows the part to be shut down for further power savings. The total mixer current is adjustable, allowing for even further power savings. The standard match frequency ranges for each board are outlined in the table below.


 

 

eval board
schematic 2
DC2483A-A

DC2483A-A - LTC5562 Low Power Mixer Demo Board Set Up for Upconversion Applications with RF Output Tuned to 3.3GHz to 3.7GHz

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产品详情

The LTC5562 is a versatile low power mixer optimized for applications requiring very wide input bandwidth, low distortion, and low LO leakage. This mixer can be used for either upconverting or downconverting applications, and provides a nominal conversion gain of 1dB. Demonstration circuit 2483A-A showcases the LTC5562 mixer for upconverting applications while demonstration circuit 2483A-B is tuned for downconverting applications. The differential inputs are optimized for use with 1:1 transmission- line baluns, allowing very wideband impedance matching. The LTC5562 uses a 3.3V supply for low power consumption and an enable pin allows the part to be shut down for further power savings. The total mixer current is adjustable, allowing for even further power savings. The standard match frequency ranges for each board are outlined in the table below.


 
DC2483A-B
LTC5562 - Low Power Mixer Demo Board Set Up for Downconversion Applications with IF Output Turned to 10MHz to 550MHz
Figure 1. DC2483A-B
DC2483A-A
DC2483A-A - LTC5562 Low Power Mixer Demo Board Set Up for Upconversion Applications with RF Output Tuned to 3.3GHz to 3.7GHz
Figure 1. DC2483A-A

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