MAX262 Active Filter Module Programmable 50x50mm with Microprocessor Interface

The MAX262 active filter module is a compact, programmable solution for signal filtering in electronic circuits. It allows independent programming of centre frequency (f0) and quality factor (Q), with 64 f0 options and 128 Q options. The module supports low-pass, high-pass, band-pass, band-stop, and all-pass filter types, and can be configured for single-stage A or B operation or cascaded AB operation. A microprocessor interface and three clock input choices simplify integration. With a centre frequency range of 1Hz to 140kHz and a maximum input clock of 4MHz, it suits a variety of audio, instrumentation, and communication tasks. The simple circuit structure and minimal external components make it practical for space-limited designs. This module is supplied as a single program-controlled filter on a green PCB measuring 50x50mm and weighing 22 grams.

Features and Construction

The module is built around the MAX262 chip and provides a range of programmable filtering functions. Its pin layout supports power, ground, clock, signal input and output, and control signals, allowing flexible connection in custom circuits. The green PCB measures 50mm by 50mm and weighs 22 grams, making it suitable for compact assemblies.

Material and Build

The module uses a green printed circuit board with a MAX262 active filter chip. Metal pins are provided for electrical connections, including V+ and V- for power, GND for analog ground, and multiple clock and signal pins. The board is populated with the necessary components to support the filter functions, and the simple circuit structure reduces the need for additional external parts. The green solder mask is the only colour variant listed.

Size and Practical Fit

Measuring 50mm by 50mm and weighing 22 grams, the module is compact enough for many embedded and benchtop designs. It can be mounted on a prototyping board or integrated into a larger system. The pin spacing and layout follow the standard configuration for the MAX262, allowing straightforward wiring. No additional dimensions are provided in the source data.

Uses and Placement

The module is intended for signal processing tasks where adjustable filtering is required. It can be used in audio equipment, test instruments, and communication circuits. The ability to program f0 and Q independently makes it adaptable to different frequency responses without changing hardware.

Event or Professional Use

In professional or laboratory settings, the module can serve as a configurable filter for experiments and prototypes. The microprocessor interface and address/data pins allow settings to be changed via a logical interface, which is useful when automated control is needed. The three clock input options provide flexibility in synchronisation. The module supports both single-stage and cascaded operation, enabling more complex filter designs.

Everyday Home Use

For hobbyists and home electronics projects, the module offers a way to add programmable filtering without designing a filter from discrete components. Its small size and 22g weight make it easy to incorporate into DIY audio or measurement devices. The simple circuit structure means fewer external parts are needed, which can simplify assembly. The green PCB is visible in open enclosures.

Benefits and Buying Value

The module provides a high degree of programmability in a compact form. It reduces the need for multiple fixed filters by allowing f0, Q, and filter type to be changed electronically. The inclusion of a microprocessor interface supports integration with digital control systems.

Reuse and Low Maintenance

Because the filter settings are programmable, the same module can be reconfigured for different tasks, reducing the need for multiple hardware versions. The solid-state construction with no moving parts means there is little to maintain beyond standard electronic care. The module can be reused across projects as long as the pins and chip remain undamaged.

Why Choose This Product

This module is a practical choice for those needing a programmable active filter with a wide frequency range and multiple filter modes. Its 64 f0 and 128 Q settings, along with support for five filter types, offer flexibility. The 50x50mm size and 22g weight suit space-constrained applications. The source data confirms these specifications, and no additional performance claims are made.