8

DS1072PP1

CS7250B

4 Typical Performance

4 Typical Performance

4.1 Audio Frequency Response

Test conditions: VDD = 1.8 V, GND = 0 V, CLK = 3.072 MHz, no load on DATA pin.

Figure 4-1. Sensitivity vs. Audio Frequency (20 Hz–20 kHz)

4.2 THD Performance

Test conditions: VDD = 1.8 V, GND = 0 V, CLK = 3.072 MHz, no load on DATA pin.

Figure 4-2. THD (%) vs. Input Sound Pressure Level (dB SPL)

-10.0

-9.0

-8.0

-7.0

-6.0

-5.0

-4.0

-3.0

-2.0

-1.0

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

10

100

1000

10000

100000

Frequency (Hz)

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

90.0

95.0

100.0

105.0

110.0

115.0

120.0

125.0

130.0

135.0

Input Sound Pressure Level (dB SPL)