3624 (0.01Hz to 159.9kHz, LP/HP/BP/BE, 24dB/Oct, Dual Channel Programmable Filter)

型號系列: 3620 (系列)


A filter is a circuit that separates some frequencies from others within mixed-frequency signals. It is used for preprocessing in measurement. The NF 3620 Series Dual Channel Programmable Filters are variable cut-off frequency filters as the cut-off frequency can be set to the required one. The 3620 Series have an extremely wide frequency range with cut-off frequency 0.01Hz to 1.59MHz for LPF, HPF, BPF and BEF (option).  The use of the 3620 Series is not limited to electronics as it also covers a wide field of physical experiments, studies on physical properties and other related areas.  Its attenuation slope is 24dB/Oct (3624/3627) and 48dB/Oct (3625/3628) and phase linear response is also available in the LPF mode.


  • Wide cut-off frequency
    • 01Hz to 159.9kHz (3624/3625)
    • 1Hz to 1.59MHz (3627/3628)
  • Roll off
    • 24dB/Oct (3624, 3627)
    • 48dB/Oct (3625, 3628)
  • Maximum attenuation
    • 100dB or greater (to 100kHz), 80dB or greater (to 1MHz) (3624, 3625)
    • 90dB or greater (to 100kHz), 70dB or greater (to 2MHz) (3627, 3628)
  • Cut-off frequency selectable (3-1/2 digit resolution)
  • x1, x2, x5, selectable passband gain at both input and output
  • Single-ended or floating input, selectable
  • Low distortion about 0.02% for typical value 5kHz or lower of input frequency (3624/3625)
  • Low noise about 100µVrms for bandwidth 100kHz (3624 and 3625)
  • GPIB interface is provided as standard


  • Various filter modes are available: LP-MF, LP-PL, HPF, BPF, BEF, THRU (MF: Maximum Flat, PL: Phase Linear)
  • Operational modes: SEPARATE (separate CH-A and CH-B), CASCADE (serially connected CH-A and CH-B)


  • Frequency separation from others within mixed frequency signals
  • Evaluation of electronics and physical experiments and properties


  1. GPIB Interface
  2. Operation Manual
  3. Power Cable


  1. BEF: Band-elimination Filter





在過去歲月中,我們全力從事電子測試儀器銷售行業. 應用範圍廣泛覆蓋電訊,電源,數據通訊,無線通訊技術,音響教育等各類市場。