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| CS35L01 Datasheet, PDF (22/34 Pages) Cirrus Logic – 2.9 W Mono Class-D Audio Amplifier with Low Idle Current | |||
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CS35L01/03
7.00
3.5
2200 pF
6.00
3.0
RL = 4 Ω
10% THD+N Ratio
5.00
2.5
4.00
1000 pF
3.00
2.0
RL = 4 Ω
1% THD+N Ratio
1.5
2.00
1.00
470 pF
No Filter
0.00
2.5
3
3.5
4
4.5
5
5.5
VBATT (V)
Figure 14. Idle Current Draw vs. VBATT - SD Mode
RL = 8 Ω + 33 μH (Note 15)
1.0
RL = 8 Ω
10% THD+N Ratio
0.5
RL = 8 Ω
1% THD+N Ratio
0.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
VBATT Supply Voltage (V)
Figure 15. Output Power vs. VBATT - SD Mode
100%
90%
80%
3.7 V
4.2 V
5.0 V
70%
60%
50%
40%
30%
20%
10%
0%
0
0.25
0.5
0.75
1
Output Power (W)
1.25
1.5
1.75
Figure 16. Efficiency vs. Output Power - SD Mode
RL = 8 Ω + 33 μH
100%
90%
80%
70%
3.7 V
60%
4.2 V
5.0 V
50%
40%
30%
20%
10%
0%
0
0.5
1
1.5
2
2.5
3
Output Power (W)
Figure 17. Efficiency vs. Output Power - SD Mode
RL = 4 Ω + 33 μH
0.40
0.70
0.35
4.2 V
0.30
3.7 V
0.25
5.0 V
0.20
0.15
0.10
0.05
0.60
4.2 V
0.50
3.7 V
0.40
0.30
0.20
0.10
5.0 V
0.00
0
0.25
0.5
0.75
1
Output Power (W)
1.25
1.5
1.75
Figure 18. Supply Current vs. Output Power - SD Mode
RL = 8 Ω + 33 μH
0.00
0
0.5
1
1.5
2
2.5
3
Output Power (W)
Figure 19. Supply Current vs. Output Power - SD Mode
RL = 4 Ω + 33 μH
Note:
15. âIdle Current Draw vs. VBATT - SD Modeâ capacitor values refer to CFILT when configured as the
âCS35L01/03âs Minimized Optional Output Filter,â shown in Figure 5 on page 17.
22
DS909A2
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