LP0805A0947AW Filters

Series:	LP0805
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Discontinued at Digi-Key
Moisture Sensitivity Level (MSL):	--
Frequency:	947.5MHz Center
Bandwidth:	25MHz
Filter Type:	Low Pass
Ripple:	--
Insertion Loss:	0.3dB
Mounting Type:	Surface Mount
Package / Case:	0805 (2012 Metric), 4 PC Pad
Size / Dimension:	0.080" L x 0.061" W (2.03mm x 1.55mm)
Height (Max):	0.044" (1.12mm)

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LP0805A0947AW Application Field and Working Principle

RF Filters are used to remove or attenuate signals having a certain frequency range. The LP0805A0947AW is a type of RF Filter used for filtering signals at a specific frequency range. It is a three-pole surface mount bandpass filter based on ceramic technology which has been designed to give excellent performance over a broad range of frequencies from 805 to 960 MHz with tight manufacturing control and tolerances.

Application

The LP0805A0947AW can be used in a variety of applications such as wireless base stations, mobile handsets, mobile repeaters, ISM receivers, general radio receivers, and many more. Due to its high quality performance and low cost, the LP0805A0947AW is ideal for most commercial and industrial RF applications where low loss, good harmonic suppression and small size are required.

Working Principle

The working principle of the LP0805A0947AW RF Filter is based on the combination of two filters – an elliptical filter and a second order low pass filter. The elliptical filter provides a high rejection at the upper and lower frequency limits of the pass band. The low pass filter provides rejection of higher order harmonics, improving the filter’s performance characteristics.The RF filter is constructed with a series of multiple inductors and capacitors which are connected in a specific circuit. The inductors act to shape the transmitted frequency spectrum while the capacitors act to store energy to filter the signal. The LP0805A0947AW filter has a direct current resistance of 60Ω and an insertion voltage loss of only 0.3 dB in the 805 to 960 MHz range.The filter features a dieelectric centre conductor which improves the signal integrity over frequency, reduces insertion loss and improves harmonic suppression. The LP0805A0947AW also incorporates a low pass filter which helps reduce harmonic distortion and improve signal integrity.

Conclusion

The LP0805A0947AW is a high quality and low cost RF Filter which is designed for use in a variety of applications. It combines an elliptical filter and a low pass filter to provide excellent performance over a wide range of frequencies with tight manufacturing control and tolerances. The filter has a direct current resistance of 60Ω and an insertion voltage loss of 0.3dB in the 805 to 960 MHz range. It also includes a dieelectic centre conductor which improves signal integrity over frequency, reduces insertion loss and improves harmonic suppression.

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