Allen Avionics high performance filters use 7 to 11 pole Chebyshev or Elliptic Functions. They are designed using the specifications and techniques that work for most precision signal conditioning high performance testing applications. In a typical application they are used to enhance the performance of all test generators and signal sources used in testing A to D, D to A converters, amplifiers and other electronic components. They improve selectivity and dynamic range of all spectrum analyzers for harmonic distortion and intermodulation measurements. They are designed to provide 95 dB attenuation to all harmonics.  If your testing application requires balanced or differential filters, these filters can be supplied in a differential configuration. Most test generators and frequency synthesizers have harmonics present up to the 6th and7th harmonics. For most serious testing applications this is not acceptable. These filters can even be used in 16 Bit applications where harmonic distortion must be below -95dB. 

Allen Avionics filter enclosures are supplied in shielded metal cases to provide the best insulation against unwanted external signals. The enclosures are then painted and laser etched to provide part Identification of the filter inside along with other pertinent information.

Key parameters of these filters are:

Frequency Range: 1 KHz to 500 MHz

Impedance: 50 ohms

Q Range: 0.5 to 50

Maximum Insertion Loss: 1 dB