2.3

Typical performance curves

Figure 3. Typical free-field response normalized to 1 kHz

Figure 4. Typical PSRR

-10

-8

-6

-4

-2

0

2

4

6

8

10

10

100

1000

10000

Frequency [Hz]

Low

Power

Mode

Normal

Mode

40

50

60

70

80

90

100

110

100

1000

10000

Frequency [Hz]

Low

Power

Mode

Normal

Mode

Figure 5. Typical THD at 1 kHz vs. sound pressure level

Figure 6. Typical Idd vs. Vdd

0.1

1

10

90

100

110

120

130

140

S.P.L. [dBSPL]

Low

Power

Mode

Normal

Mode

0

200

400

600

800

1000

1200

1.6

1.8

2

2.2

2.4

2.6

2.8

3

3.2

3.4

3.6

Vdd [V]

Fclk 3.072MHz

Fclk 2.4MHz

Fclk 1.536MHz

Fclk 0.768MHz

Fclk 0 MHz

Figure 7. Typical THD at 1 kHz vs. sound pressure level

Figure 8. Noise floor power spectral density

0.01

0.1

1

10

100

1000

10000

Frequency [Hz]

115dB SPL

106dB SPL

94 dB SPL

120dB SPL

-160

-150

-140

-130

-120

-110

-100

-90

-80

10

100

1000

10000

Frequency [Hz]

Fclk 0.768MHz

Fclk 2.4MHz

Fclk 3.072MHz

MP23DB02MM

Typical performance curves

DS13521 - Rev 3

page 6/15