MAX261 - 可由微处理器编程的通用开关电容滤波器

MAX261是Maxim美信半导体公司的一款滤波器(连续模式和开关电容)产品，MAX261是可由微处理器编程的通用开关电容滤波器，本站介绍了MAX261的封装应用图解、特点和优点、功能等，并给出了与MAX261相关的Maxim元器件型号供参考。

MAX261 - 可由微处理器编程的通用开关电容滤波器 - 滤波器(连续模式和开关电容) - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX260/MAX261/MAX262 CMOS dual second-order universal switched-capacitor active filters allow microprocessor control of precise filter functions. No external components are required for a variety of bandpass, lowpass, highpass, notch, and allpass configurations. Each device contains two second-order filter sections that place center frequency, Q, and filter operating mode under programmed control.

An input clock, along with a 6-bit f0 program input, determine the filter's center or corner frequency without affecting other filter parameters. The filter Q is also programmed independently. Separate clock inputs for each filter section operate with either a crystal, RC network, or external clock generator.

The MAX260 has offset and DC specifications superior to the MAX261 and MAX262 and a center frequency (f0) range of 7.5kHz. The MAX261 handles center frequencies to 57kHz, while the MAX262 extends the center frequency range to 140kHz by employing lower clock-to-f0 ratios. All devices are available in 24-pin DIP and small outline packages in commercial, extended, and military temperature ranges.

关键特性

以下关键特性由Maxim美信半导体提供：

Filter Design Software Available

Microprocessor Interface

64-Step Center Frequency Control

128-Step Q Control

Independent Q and f0 Programming

Guaranteed Clock to f0 Ratio-1% (A grade)

75kHz f0 Range (MAX262)

Single +5V and ±5V Operation

热门应用

µP调节滤波器

自适应滤波器

抗混叠滤波器

数字信号处理(DSP)

锁相环(PLL)

信号分析

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