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[原创] ADI ADMV8416 7-16GHz可调带通滤波器解决方案

关键词:通信技术 微波集成电路(MMIC) 军用雷达系统 VSAT ADMV8416

时间:2019-08-21 11:57:11       来源:中电网

ADI公司的ADMV8416是单片微波集成电路(MMIC),7-16GHz可调带通滤波器,具有用户可选择的通带频率.3dB滤波器带通大约为中心频率(fCENTER)的15%,20dB滤波器带宽为中心频率(fCENTER)的37%.采用模拟可调电压0-15V fCENTER在7GHz到16GHz变化.这种非常小型的可调滤波器可用来替代大型开关滤波器组和腔调谐滤波器.由于单片设计,该滤波器具有极好的微音效应,并提供动态可调解决方案.幅度设定时间典型为20ns,宽带抑制度大于20dB,主要用在测试和测量设备,军用雷达和电子战(EW)系统和视频卫星通信(VSAT).本文介绍了ADMV8416主要特性,功能框图,典型应用电路图以及评估板ADMV8416-EVALZ/ADMV8432-EVALZ主要特性,电路图,材料清单和PCB设计图.

The ADMV8416 is a monolithic microwave integrated circuit (MMIC), tunable band-pass filter that features a user selectable pass-band frequency. The 3 dB filter bandwidth is approximately 15% of the center frequency (fCENTER), and the 20 dB filter bandwidth is 37%. Additionally, fCENTER can be varied between 7 GHz to 16 GHz by applying an analog fCENTER tuning voltage between 0 V to 15 V. This tunable filter can be used as a much smaller alternative to large switched filter banks and cavity tuned filters. The filter has excellent microphonics due to the monolithic design and provides a dynamically adjustable solution.

ADMV8416主要特性:

Amplitude settling: 200 ns typical
Wideband rejection: ≥20 dB
Single chip implementation
40-lead, 6 mm × 6 mm, RoHS compliant LFCSP

ADMV8416应用:

Test and measurement equipment
Military radar and electronic warfare (EW) systems
Video satellite (VSAT) communications

图1.ADMV8416功能框图

图2.ADMV8416典型应用电路图

评估板ADMV8416-EVALZ

The ADMV8416-EVALZ/ADMV8432-EVALZ evaluation boards aid in the evaluation of the ADMV8416 and ADMV8432 band-pass filters with selectable pass band frequency.

The ADMV8416-EVALZ/ADMV8432-EVALZ evaluation boards have end launch 2.4 mm connectors on both the input and the output to allow an efficient connection to test equipment and other circuitry.

Optimized power and ground planes ensure low noise and high speed operation. Component placement and power supply bypassing are optimized for maximum circuit flexibility and performance.

All components are placed on the primary side. No components are placed on the secondary side (see Figure 1 and Figure 2). Note that the ADMV8432-EVALZ evaluation board is labeled ADMV8416-EVALZ. The ADMV8416 and ADMV8432 are evaluated using the same printed circuit board (PCB).

The ADMV8416 and ADMV8432 data sheets, available at www.analog.com, provide full specifications for the ADMV8416 and ADMV8432. Consult the ADMV8416 and ADMV8432 data sheets in conjunction with this user guide when using the evaluation boards.

图3.评估板ADMV8416-EVALZ外形图(正面)

图4.评估板ADMV8416-EVALZ外形图(背面)

图4.评估板ADMV8416-EVALZ电路图
评估板ADMV8416-EVALZ材料清单:


图5.评估板ADMV8416-EVALZ PCB设计图(顶层)
详情请见:
https://www.analog.com/media/en/technical-documentation/data-sheets/ADMV8416.pdf
https://www.analog.com/media/en/technical-documentation/user-guides/ADMV8416-EVALZ-8432-EVALZ-UG-1611.pdf
ADMV8416.pdf
ADMV8416-EVALZ-8432-EVALZ-UG-1611.pdf

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