ADI ADMV8526 1.25GHz-2.6GHz射频带通滤波器解决方案

ADI公司的ADMV8526是运行频率可数字选择的射频带通滤波器, 滤波器中心频率 (fCENTER) 可在 1.25 GHz 至 2.60 GHz 范围内调整,使用包含正在申请专利的插值技术的 8 位值(256个状态). 典型的 3 dB 带宽为 9%，可调节性为 ±2%。插入损耗通常为 4 dB, 20 dB 抑制与 fCENTER 相差 16%,非常适合最小化系统干扰.器件具有数字可调谐,倍频程和带通调谐. 该可调谐滤波器可用作大型开关滤波器组和基于分立元件的可调谐滤波器的较小替代品,并且该套件在高级通信应用中提供动态可调节解决方案. 3 dB 带宽为9% ± 2%,距离 fCENTER 16%的抑制为20 dB. 单芯片替代离散滤波器.采用紧凑型 10 mm × 10 mm × 1.99 mm LGA 封装.主要用在陆地移动无线电,测试测量设备,军用雷达和电子战以及电子对抗,卫星通信,工业和医疗设备.本文介绍了ADMV8526主要特性, 功能框图和评估板ADMV8526-EVALZ主要特性, 实验室建立图,电路图,材料清单和PCB设计图.

1.25 GHz to 2.60 GHz Digitally Tunable Band-Pass Filter

The ADMV8526 is an RF band-pass filter that features a digitally selectable frequency of operation. The filter center frequency (fCENTER) can be adjusted from 1.25 GHz to 2.60 GHz, using an 8-bit value (256 states) that incorporates a patent pending interpolation

technique.

The typical 3 dB bandwidth is 9% and adjustability is ±2%. Insertion loss is typically 4 dB, and the 20 dB rejection is 16% away from fCENTER, which is ideally suited for minimizing system interferers.

This tunable filter can be used as a smaller alternative to large switched filter banks and discrete component-based tunable filters, and this device provides a dynamically adjustable solution in advanced communications applications.

ADMV8526主要特性:

► Digitally tunable, octave, band-pass tuning

► 3 dB bandwidth: 9% ± 2%

► Rejection (20 dB): 16% away from fCENTER

► Single chip replacement for discrete filter banks

► Compact 10 mm × 10 mm × 1.99 mm LGA package

ADMV8526应用:

► Land mobile radios

► Test and measurement equipme...