HMC891LP5ETR

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The HMC891LP5ETR is an active filter that is used in a wide range of modern electronics. Designed by the Harvard Microwave Corporation, the filter is versatile and easy to integrate into a variety of applications, ranging from radios to speakers to specialty antennae.

General Specifications

The HMC891LP5ETR is a 4 pole active elliptical filter with a passband from DC to 1.9 GHz. With an insertion loss of no more than 0.5 dB, it has a power output level of 27 dBm. The device itself comes in a small package, measuring only 1.4 x 1.2 inches and weighing 4.3 grams. It has a low power consumption of 0.6 watts and a fast settling time of 1.5 ns.

Applications

The HMC891LP5ETR can be used in a variety of applications, ranging from commercial and industrial to medical and military purposes. In commercial and industrial applications, the filter can be used to eliminate high frequency interference from electronic circuits, improve audio quality in speakers, and reduce radio power levels in transmitters. In medical applications, it can be used for systems such as MRI machines, CAT scan machines, and ultrasound machines. The filter is also used in defense systems such as radar, communication, and navigation.

Working Principle

The HMC891LP5ETR is an active filter and uses an amplifier between two reactive components—typically capacitors and inductors—to increase the power of the filter. The amplifier boosts the signal level, allowing the filter to reject higher frequency noise and interference. The device also uses a feedback loop to adjust the gain of the amplifier in order to achieve the desired frequency response.

The HMC891LP5ETR is designed with a low cutoff frequency and a high cutoff frequency. The low cutoff frequency is used to reduce noise and interference that is below the intended signal frequency, while the high cutoff frequency is used to reject signals that are higher than the intended signal frequency. The filter also provides excellent out-of-band rejection and has a high-Q factor for improved performance.

Advantages

The HMC891LP5ETR is an ideal filter for a variety of applications due to its small size, low power consumption, fast settling time, and excellent frequency response. Its small footprint makes it easy to incorporate into designs, while its low power consumption makes it energy efficient. The fast settling time enables the filter to quickly react to changes in the environment, making it suitable for use in dynamic applications. Finally, its high-Q factor and excellent out-of-band rejection provide good overall performance.

The HMC891LP5ETR is a versatile active filter that can be used in a variety of applications. With its small size, low power consumption, fast settling time, and wide range of frequencies, the device offers good performance and is easy to integrate into existing designs. Its wide range of applications, from commercial and industrial to medical and military systems, make it an ideal filter for a variety of applications.

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