adau1373 Analog Devices, Inc., adau1373 Datasheet - Page 31

• Manufacturer Part Number: adau1373
• Description: Low Power Codec With Speaker And Headphone Amplifier Adau1373
• Manufacturer: Analog Devices, Inc.

Figure 44. Efficiency vs. Output Power, 8 Ω + 33 μH, Digital In → Speaker Out
–100
–120
–140
–100
–105
–110
–115
–120
100
–20
–40
–60
–80
–50
–55
–60
–65
–70
–75
–80
–85
–90
–95
90
80
70
60
50
40
30
20
10
0
0
Figure 43. PSRR vs. Frequency Ripple on SPKVDD, 8 Ω + 33 μH,
Figure 45. FFT, −60 dBFS, 16 Ω, Digital In → Headphone Out
0
0
200
2.5
400
100
5.0
Digital In → Speaker Out
OUTPUT POWER (mW)
600
FREQUENCY (kHz)
7.5
FREQUENCY (Hz)
800
10.0
1k
1000
12.5
1200
15.0
SPKVDD = 3.6V
SPKVDD = 4.2V
SPKVDD = 5V
1400
17.5
10k
1600
20.0
Rev. 0 | Page 31 of 296
Figure 47. THD + N vs. Output Power, 16 Ω, Digital In → Headphone Out
Figure 48. THD + N vs. Output Power, 32 Ω, Digital In → Headphone Out
–100
–120
–140
0.001
0.001
–20
–40
–60
–80
0.01
0.01
0.1
0.1
10
10
0
1
1
10µ
0
10µ
Figure 46. FFT, −1 dBFS, 16 Ω, Digital In → Headphone Out
2.5
5.0
100µ
100µ
OUTPUT POWER (W)
OUTPUT POWER (W)
7.5
FREQUENCY (kHz)
10.0
1m
1m
12.5
15.0
10m
ADAU1373
10m
17.5
20.0