MAX7423EUA

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The MAX7423EUA is a high-performance active filter for signal-conditioning applications. It is a low-pass filter (LPF) with a gain of up to 8dB and a selectable corner frequency from 10kHz to 1.5MHz. It features adjustable gain, selectable step size, low noise, and low total harmonic distortion (THD). Additionally, it has go/no-go functionality, allowing the user to quickly verify whether the signal is within the desired range and then act accordingly. It is ideal for signal conditioning applications in audio, data, video, and communications, and can be used to filter noise, suppress transients and limit dynamic range in signal processing.

The MAX7423EUA is a dual-channel, active, seventh-order Butterworth filter. It includes two, digitally-controlled filters with a filter gain range of 0.5 to 8 dB. A maximum gain of 4dB can be achieved with a single signal or with two signals that are 180° out of phase, or “in-phase”. The filter gain, corner frequency and filter type can be selected and programmed via pins. The corner frequency is adjustable from 1Hz to 1.5MHz in increments of 0.1% using the internal clock, and the filter type can be selected from low pass, band pass, high pass, or a combination of different filter types.

The filter includes go/no-go functionality and power input detect to ensure proper operation. The go/no-go functionality activates when the filtered signal level crosses a user-defined threshold or when an external input is triggered from an external source. Additionally, the power input detect feature ensures that the filter is powered on only when sufficient power is present and provides fault detection. The filter also has output synchronization and an optional triple decimation feature that can reduce the sample rate for reducing power consumption.

The MAX7423EUA is designed for use in signal conditioning applications such as audio, data, video and communications systems. It is compatible with a wide range of applications from consumer devices to aerospace systems. In addition, it can be used to filter noise and suppress transients and limit dynamic range in signal processing. It is ideal for wireless systems as well as base station transmit/receive systems. Other applications include medical and automotive audio equipment, consumer and professional audio electronics, and acoustic and speech recognition.

In summary, the MAX7423EUA is a high-performance active filter for signal-conditioning applications. It is low-pass filter with adjustable gain, selectable step size, low noise, and low total harmonic distortion. It is ideal for a wide range of applications from consumer devices to aerospace systems. It provides go/no-go functionality and power input detection for fault detection and output synchronization, and optionally triple decimation for power consumption reduction. The filter can be used to filter noise, suppress transients and limit dynamic range in signal processing.

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