Absolute Maximum Ratings
Parameter
Absolute Maximum Rating
Units
V
Vdd to Ground
OUT to Ground
Input Current
Temperature
-0.3, +5.0
-0.3, +5.0
5
V
mA
ºC
-40 to +100
Stresses exceeding these “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only. Functional operation at these or
any other conditions beyond those indicated under “Acoustic & Electrical Speciꢁications” is not implied. Exposure beyond those indicated under “Acoustic & Electrical
Speciꢁications” for extended periods may affect device reliability.
Acoustic & Electrical Speciꢀications
TEST CONDITIONS: 23 2°C, 55 20% R.H., VDD(min) < VDD < VDD(max), no load, unless otherwise indicated
Parameter
Symbol
VDD
Conditions
Min.
1.5
-
Typ.
-
Max
3.6
130
185
-37
-
Units
V
Supply Voltage1
IDD
VDD = 1.8V
VDD = 3.6V
117
132
-38
65
µA
Supply Current1
Sensitivity1
S
94 dB SPL @ 1 kHz
-39
-
dBV/Pa
dB(A)
Signal to Noise Ratio
SNR
94 dB SPL @ 1 kHz, A-weighted
94 dB SPL @ 1 kHz,
Total Harmonic Distortion
Acoustic Overload Point
THD
AOP
PSRR
PSR
-
-
-
-
.25
124
77
-
-
-
-
%
S = Typ, Rload > 3 k Ohms
10% THD @ 1 kHz,
S = Typ, VDD = 3.6V, Rload > 3 k Ohms
dB SPL
dB
200mVpp sinewave @ 1 kHz,
VDD = 1.8V
Power Supply Rejection Ratio
Power Supply Rejection
100 mVpp 1/8 duty cycle rectangular
waveform @ 217 Hz, A-weighted, 20kHz BW
-102
dBV(A)
DC Output
Output Impedance
Directivity
VDD = 1.8V
@ 1 kHz
-
-
1.3
-
-
V
ZOUT
500
Ohms
Omnidirectional
Increasing output voltage
Polarity
Increasing sound pressure
1 100% Tested
knowles.com
Datasheet SPH1642HT5H-1 Rev B
02
KNOWLES [ KNOWLES ELECTRONICS ]
