PRODUCT SPECIFICATION
Doc:
MD9745APA-1
This specification applies to the electret condenser microphone outlined within this document.
Model Number:
I.
MD9745APA-1
Test Condition (Vs= 2.0 V, RL=
SYMBOL
S
Zout
I
S/N (A)
∆S
f=1kHz, Pin=1Pa
A Curve
f=1kHz, Pin=1Pa
Vs=
2.0 - 1.5
Electrical Characteristics
ITEM
3
k ohm, Ta=20°C, RH=65%)
STANDARD
-41
OMNI-DIRECTIONAL
0.5
55
-3
100-10,000
mA
dB
dB
Hz
MAXIMUM
-38
2.2
UNITS
dB
0dB=1V/Pa
TEST CONDITION
f=1kHz, Pin=1Pa
f=1kHz, Pin=1Pa
MINIMUM
-44
Sensitivity
Impedance
Directivity
Current Consumption
S/N Ratio
Sensitivity Reduction
Frequency Range
Frequency Response
kΩ
Schematic Diagram of
Circuit
II.
Mechanical Characteristics
∅
Less than
9.7 x 4.5
1.0 g
See Drawing in Section IV
Dimensions
Weight
Solderering Heat Shock
Terminal Mechanical
Strength
Absolute Maximum
Ratings
To be no interferance in operation after soldering temperature exposure at 260°C +/-5°C
for 5 +/- 1 seconds.
Not Applicable
Operating Voltage
Vs (V)
10
Storage Temperature Operation Temperature
Range
Range
Tope °C
Tstg °C
-25°C to +60°C
-25°C to +55°C
Issued Date:
2003/9/1
Version:
B
KNOWLES [ KNOWLES ELECTRONICS ]
