Datasheet

SSM2518 Data Sheet
Rev. A | Page 12 of 48
10 100 1k 10k 100k
FREQUENCY (Hz)
0.125W
0.25W
0.5W
0.01
0.1
1
10
100
THD + N (%)
10242-017
PVDD = 3.6V
GAIN = 3.6V
MCLK = 256 ×
f
S
R
L
= 8, 33µH
Figure 12. THD + N vs. Frequency, PVDD = 3.6 V, R
L
= 8 Ω
10 100 1k 10k 100k
FREQUENCY (Hz)
0.01
0.1
1
10
100
THD + N (%)
0.05W
0.10W
0.20W
10242-018
PVDD = 2.5V
GAIN = 3.6V
MCLK = 256 ×
f
S
R
L
= 8, 33µH
Figure 13. THD + N vs. Frequency, PVDD = 2.5 V, R
L
= 8 Ω
4
5
6
7
8
9
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
QUIESCENT CURRENT (mA)
SUPPLY VOLTAGE (V)
NO LOAD
8 + 33µH
4 + 33µH
DAC_LPM = 1
AMP_LPM = 1
DVDD = 1.8V
DITHER INPUT
10242-019
Figure 14. Quiescent Current (Power Stage) vs. Supply Voltage
10 100 1k 10k 100k
FREQUENCY (Hz)
0.125W
0.25W
0.5W
0.01
0.1
1
10
100
THD + N (%)
10242-020
PVDD = 3.6V
GAIN = 3.6V
MCLK = 256 ×
f
S
R
L
= 4, 15µH
Figure 15. THD + N vs. Frequency, PVDD = 3.6 V, R
L
= 4 Ω
10 100 1k 10k 100k
FREQUENCY (Hz)
0.01
0.1
1
10
100
THD + N (%)
0.05W
0.10W
0.20W
10242-021
PVDD = 2.5V
GAIN = 3.6V
MCLK = 256 ×
f
S
R
L
= 4, 15µH
Figure 16. THD + N vs. Frequency, PVDD = 2.5 V, R
L
= 4 Ω
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
1.6 2.0 2.4 2.8 3.2 3.6
QUIESCENT CURRENT (mA)
SUPPLY VOLTAGE (V)
8kHz 256 × f
S
24kHz 256 × f
S
48kHz 256 × f
S
MCLK = 256 × f
S
DAC_LPM = 1, AMP_LPM = 1
10242-022
Figure 17. Quiescent Current (Digital Core) vs. Supply Voltage