in-line analog a-weighting filter (for icp preamps (type 1) requires 4 ma current supply, min.)

IN-LINE A-WEIGHTING FILTER

Model 426B02

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  • CE
  • IP

In-line analog A-weighting filter (for ICP preamps (Type 1) requires 4 mA current supply, min.)

  • Temperature Range: -40 to +149 °F (-40 to +65 °C)
  • Constant Current Excitation: 0.75 mA
  • Output Voltage: 3.5 Vpk
  • Size - Length: 3.66 in (93 mm)

Specification Notes

[1] Measured with an 18 pF reference microphone and preamplifier.
[2] Typical.
[3] For best performance, filter should be connected drectly to the microphone preamplifier.
[4] See PCB Declaration of Conformance PS075 for details.

English: SI:
Performance
Gain (re 1 kHz) ±0.3 dB ±0.3 dB [1]
Frequency Response (±0.5 dB) (A-weighted, re 1 kHz) 50 to 8000 Hz 50 to 8000 Hz [1]
Frequency Response (±1.0 dB) (A-weighted, re 1 kHz) 20 to 20000 Hz 20 to 20000 Hz [1]
Electrical Noise (Flat 20 Hz to 20 kHz) <25 µV <25 µV [1]
Electrical Noise (1 kHz, 1/3 octave band) <2.8 µV <2.8 µV [1]
Distortion (2 V rms input at 1 kHz) <-57 dB <-57 dB
Environmental
Temperature Range (Operating) -40 to +149 °F -40 to +65 °C
Temperature Response ±0.5 dB ±0.5 dB
Humidity Range (Non-Condensing) 0 to 95 %RH 0 to 95 %RH
Humidity Sensitivity ±0.5 dB ±0.5 dB
Electrical
Excitation Voltage (Required) 24 to 32 VDC 24 to 32 VDC
Constant Current Excitation (Required) 4 to 20 mA 4 to 20 mA
Constant Current Excitation (To Preamplifier) 0.75 mA 0.75 mA [2] [3]
Impedance (Input) 30 kohm 30 kohm [2]
Impedance (Output) 50 Ohm 50 Ohm [2]
Output Voltage (Maximum) 3.5 Vpk 3.5 Vpk
Physical
Housing Material Stainless Steel Stainless Steel
Size - Diameter 0.57 in 14.5 mm
Size - Length 3.66 in 93 mm
Electrical Connector (Input) BNC Plug BNC Plug
Electrical Connector (Output) BNC Jack BNC Jack

* All specifications are at room temperature unless otherwise specified.

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