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7
SPECIFICATIONS
(measured with a standard test circuit, see Figure 9 on page 33).
500 1,000 2,000 5,000 10,000 20,00050 100 20020
0
+10
–10
–20
–40
+20
Mild Boost Equalization Cap
High Boost Equalization Cap
FREQUENCY IN Hz
RELATIVE RESPONSE IN dB
TYPICAL FREQUENCY RESPONSE
FIGURE 8
Type
Condenser (electret bias)
Frequency Response
20 to 20,000 Hz (see Figure 8)
Polar Pattern
Omnidirectional
Recommended Minimum
Input Impedance
20 kW
Output Level
Open Circuit Voltage
-54 dBV/Pa
1 Pascal = 94 dB SPL
Maximum Sound Pressure Level
142 dB at 1% THD/1 kW load
Dynamic Range
103 dB
Output Noise
(equivalent SPL, A-weighted)
39 dB typical; 42 dB maximum
Signal-to-Noise Ratio
55 dB at 94 dB SPL
Current Drain
60–130 mA
Polarity
Positive pressure on the diaphragm
produces a positive voltage at pin 3
relative to pin 1 at the output connec-
tor of the microphone.
Power Requirements
+5 Vdc on pin 2, return on pin 1
(ground)
Environmental Conditions
Operating Temperatures:
-18
_
to 57
_
C (0
_
to 135
_
F)
Storage Temperatures:
-29
_
to 74
_
C (-20
_
to 165
_
F)
Humidity: 0 to 95%
Cable
1.5 m (5 ft), small-diameter, shield-
ed, with mini 4–pin connector
(TA4F), or 3 m (10 ft.) small-diame-
ter, shielded, no connector.
Net Weight
35.35 g (1.25 oz.) with cable and
TA4F connector.