Model Number
426A07
MICROPHONE PREAMPLIFIER
Revision: NR
ECN #: 43169
Performance
ENGLISH
SI
Nominal Microphone Diameter
1/4"
1/4"
Gain
-0.19 dB
-0.19 dB
[1][2]
Gain
-0.25 dB
-0.25 dB
[1][3]
Frequency Response(± 0.2 dB)(re 1 kHz)
2.5 to 126,000 Hz
2.5 to 126,000 Hz
Frequency Response
(-3 dB)(re 1 kHz)
<0.7 Hz
<0.7 Hz
Phase Linearity(<1 °)
63 to 20,000 Hz
63 to 20,000 Hz
Electrical Noise(A-weight)
<2.5 µV
<2.5 µV
[2]
Electrical Noise
(A-weight)
1.8 µV
1.8 µV
[1][2]
Electrical Noise
(Flat 20 Hz to 20 kHz)
<5.6 µV
<5.6 µV
[2]
Electrical Noise
(Flat 20 Hz to 20 kHz)
3.5 µV
3.5 µV
[1][2]
Electrical Noise
(A-weight)
3.3 µV
3.3 µV
[3][1]
Electrical Noise
(Flat 20 Hz to 20 kHz)
5.9 µV
5.9 µV
[3][1]
Distortion(3 V rms input at 1 kHz)
<-70 dB
<-70 dB
Output Slew Rate
2 V/µS
2 V/µS
[1]
TEDS Compliant
Yes
Yes
[4]
Environmental
Temperature Range(Operating)
-40 to 158 °F
-40 to 70 °C
Temperature Range
(Storage)
-40 to 185 °F
-40 to 85 °C
Temperature Response
<0.03 dB
<0.03 dB
Humidity Range(Non-Condensing)
0 to 95 %RH
0 to 95 %RH
Humidity Sensitivity
<0.03 dB
<0.03 dB
Electrical
Excitation Voltage
20 to 32 VDC
20 to 32 VDC
Constant Current Excitation
2 to 20 mA
2 to 20 mA
Impedance(Input)
2x10
10
Ohm
2x10
10
Ohm
[1]
Capacitance(Input)
0.15 pF
0.15 pF
[1]
Output Bias Voltage
10 to 14 VDC
10 to 14 VDC
Impedance(Output)
<50 Ohm
<50 Ohm
Output Voltage
± 8 V
± 8 V
[1]
Physical
Housing Material
Stainless Steel
Stainless Steel
Size (Diameter x Length)
0.25 in x 1.2 in
6.4 mm x 29.5 mm
Weight
0.13 oz
3.6 gm
Electrical Connector
10-32 Coaxial Jack
10-32 Coaxial Jack
Mounting Thread(Microphone to Preamplifier)
0.2244 - 60 UNS
5.7 mm - 60 UNS
All specifications are at room temperature unless otherwise specified.
In the interest of constant product improvement, we reserve the right to change specifications without notice.
ICP
®
is a registered trademark of PCB Group, Inc.
NOTES:
[1]Typical.
[2]Measured with an 18 pF reference microphone.
[3]Measured with a 6 pF reference microphone.
[4]TEDS Capable Digital Memory and Communication, compliant with IEEE P1451.4, uses
DS2431.
[5]See PCB Declaration of Conformance PS076 for details.
SUPPLIED ACCESSORIES:
Model ERC-16 Calibration of microphone preamplifier (1)
3425 Walden Avenue, Depew, NY 14043
Phone: 716-684-0001
Fax: 716-684-0987
E-Mail: [email protected]
[5]
OPTIONAL VERSIONS
Optional versions have identical specifications and accessories as listed for the standard
model except where noted below. More than one option may be used.
Entered: AP
Engineer: AK
Sales: MV
Approved: JWH
Spec Number:
Date: 7/30/2014
Date: 7/30/2014
Date: 7/30/2014
Date: 7/30/2014
56350
