Acoustic and electrical specifications

MP45DT02

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Doc ID 018658 Rev 5

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.

1.

Typical specifications are not guaranteed.

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

2.

Input clock in static mode.

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

3.

Test signal: 217 Hz square wave, 100 mVpp on Vdd pin.

-70

dBFS

Clock

4.

Duty cycle: min = 40% max = 60%.

1

2.4

3.25

MHz

TWK

5.

Time from the first clock edge to valid output data.

Guaranteed by design

10

ms

Top

Operating temperature

range

-30

+85

°C

Low level logic

input/output voltage

-0.3

0.35xVdd

V

High level logic

input/output voltage

0.65xVdd

Vdd+0.3

V

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