Frequency Range from 1 kHz to 20 MHz

Elliptical Function Bandpass Filters contain passband ripple and stop peaks and zeros. Available packages include PCB, radial RF pins, SMA and BNC connectorized cases. These are available for RF and microwave applications including ADC and DAC low distortion testing, data acquisition, receivers and transmitters. Specify any center frequency from 1 kHz to 20 MHz.

TTE offers a low THD (low distortion) filter option for this series. Please refer to the Part Number Derivation section below where the “T” option is mentioned.

For an overview of TTE’s low THD filters please click here.   

Series NumberNumber of Pole Pairs (Elements)Bandwidth Selection -3dBc
Q40 or Q344 (8)10% to 70% fo
Q70 & Q568 (16)10% to 70% fo
  • Operating Temperature Range:
    0°C to +70°C
  • Passband VSWR: 1.5:1 Typical
  • Input Power: 20 mW
Part Number Derivation:
Q56 *(T) **(R) -15M -2.25M -50 -720A
1 2 3 4 5 6 7
  1. Series, Q56
  2. The “T” option specifies a filter with low THD for ADC/DAC testing. When selected therein, THD is > -80dBc, -96dBc typical.
  3. “R” RoHS compliant. Allow for longer lead time.
  4. The Notch Frequency, fo
  5. The -3dBc passband bandwidth. It may also be specified as a percentage of fo. Thus, instead of 2.25 MHz, use 15P.
  6. Terminations
  7. Case selection from the case selection guide. “T” option cases are larger than standard.
For assistance please call 1-716-532-2234 or email us at tte@tte.com
All TTE products are Made in the USA.  Most are delivered within 2-3 weeks.  Expedited lead times of  3-5 days are available on many products
More information about TTE’s custom design expertise is provided in Capabilities.