Transcript
Omnidirectional Back Electret Condenser Microphone Cartridge
WM-64C／WM-64K ●Small and thin type omnidierectional microphone ●Solder type for leadwires ●Back electret type designed for high resistance to vibrations ●33pF or 10pF capacitor contained for RF noise reduction ●WM-64C(33pF), WM-64K(10pF)
■Appearance
■Dimensional Drawing
Unit : mm
2.2
Φ6.0
Term.1 Output
Term.2 Ground
FET Impedance converter
■Typical Frequency Response Curve
１μF Output +Vs
2.2kΩ Ground
Rel at i v e Res pons e [ dB]
■Schematic Diagram
+20
+10 0
- 10
- 20
- 30
Mic Capsule
20
50
100
200
500
Fr equenc y
■Sensitivity
(33pF)
(10pF)
-45+/-4dB
WM-64C
WM-64K
-44+/-3dB
WM-64CT
WM-64KT
Specifications Dimensions
Impedance Frequency Max operation voltage Standard operation voltage Current consumption Sensitivity reduction S/N ratio Specifications are subject to change without notice.
2k
5k
[ Hz]
Model No.
Sensitivity
（0dB=1V/Pa, 1kHz）
1k
6 x 2.2 mm Less than 2.2kΩ Omnidirectional 20-16,000Hz 10V 2V Max 0.5mA Within -3dB at 1.5V More than 58dB
Vs=2.0V RL=2.2kΩ
10k
20k
