MAX262BCWG

Series:	--
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Filter Type:	Universal Switched Capacitor
Frequency - Cutoff or Center:	140kHz
Number of Filters:	2
Filter Order:	2nd
Voltage - Supply:	±5V
Mounting Type:	Surface Mount
Package / Case:	24-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	24-SOIC
Base Part Number:	MAX262

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MAX262BCWG Application Field and Working Principle

Introduction

The MAX262BCWG is an integrated circuit that has been designed to provide a high-performance, high-frequency, active filter. It features both low- and high-pass characteristics, and is a preferred choice for applications that require an accurate, low-distortion transfer of an audio signal. This article will discuss the MAX262BCWG’s application field, its working principles and the key benefits it brings to audio applications.

MAX262BCWG Application Field

The MAX262BCWG is an all-in-one active filter suitable for high-performance audio applications. It features both high- and low-pass filter characteristics with very low distortion levels and excellent frequency linearity. It is designed to be used in devices such as portable audio players and set-top boxes, where noise problems are common. The integrated filter-tune-bypass circuit of this IC makes it ideal for applications where extremely low distortion and accurate frequency transfer are important. The MAX262BCWG also has a low cost-benefit ratio, making it an attractive choice for many engineers. By carefully tuning the on-chip components, the IC can be configured to meet the exact requirements of specific projects. Designers are therefore able to use the IC without sacrificing sound quality or having to spend too much extra expense.

Working Principle

The MAX262BCWG is based on current-mode filter topology. This topology allows the IC to achieve superior performance and noise characteristics. On its own, the active filter is composed of two opamps and two voltage-controlled amplifiers. It also includes a high- and low-pass filter configuration with a switch option to allow selection between completely bypassing the filtering or fine-tuning. The low-pass filter uses a 7th-order Butterworth configuration to filter out frequencies above a given cutoff frequency. The high-pass filter operates similarly, but with an inverse configuration that filters frequencies below the set cutoff frequency. In either switch configuration, the IC will also perform frequency linearity compensation, ensuring that the output of the filter is accurately filtered.

Key Benefits

The MAX262BCWG offers several key benefits to audio applications when compared to other active filter types . First, its current-mode filter topology enhances audio performance, providing superior performance and lower distortion. Furthermore, by using voltage-controlled amplifiers and current-mode filter stages, the filter becomes more stable and can handle a wider range of audio frequencies with significantly less distortion. Additionally, the integrated filter-tune-bypass circuit allows engineers to make sure that the filter is precisely tuned for their specific application. This feature allows users to ensure that the filtered signal is accurate and low-distortion. Finally, the low cost of the MAX262BCWG makes it an attractive option for many audio applications.

Conclusion

The MAX262BCWG is an integrated circuit designed to provide a high-performance active filter. It features both low- and high-pass characteristics that make it suitable for a wide range of audio applications. Its current-mode filter topology also makes it more stable and capable of handling a wider range of audio frequencies with less distortion. Finally, its low cost-benefit ratio makes it a preferred choice for engineers that need a precise, low-distortion audio signal.

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