Acoustic and electrical specifications
2 Acoustic and electrical specifications
2.1 Acoustic and electrical characteristics
The values listed in the table below are specified for Vdd = 1.8 V, Clock = 2.4 MHz,
T = 25 °C, unless otherwise noted.
Table 3: Acoustic and electrical characteristics
Symbol Parameter
Test
condition
Min. Typ.
(1)
Max. Unit
Vdd Supply voltage
1.64 1.8 3.6 V
Idd
Current consumption in
normal mode
No load on
data line
0.65
mA
IddPdn
Current consumption in
power-down mode
(2)
20
µA
Scc Short-circuit current
1
10 mA
AOP Acoustic overload point
120
dBSPL
So Sensitivity
-29 -26 -23 dBFS
SNR Signal-to-noise ratio
A-weighted
@1 kHz, 1 Pa
61
dB
PSR Power supply rejection
Guaranteed by
design
(3)
-70
dBFS
Clock
Input clock frequency
1 2.4 3.25 MHz
TWK
Wake-up time
(5)
Guaranteed by
design
10 ms
Top
Operating temperature
range
-30
+85 °C
V
IOL
Low level logic
input/output voltage
I
out
= 1 mA -0.3
0.35xVdd V
V
IOH
High level logic
input/output voltage
I
out
= 1 mA 0.65xVdd
Vdd+0.3 V
Notes:
(1)
Typical specifications are not guaranteed.
(2)
Input clock in static mode.
(3)
Test signal: 217 Hz square wave, 100 mVpp on Vdd pin.
(4)
Duty cycle: min = 40% max = 60%.
(5)
Time from the first clock edge to valid output data.
Table 4: Distortion specifications
Parameter Test condition Value
Distortion 100 dBSPL (50 Hz - 4 kHz) < 1% THD + N
Distortion 115 dBSPL (1 kHz) < 5% THD + N
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