Cirrus Logic CS35L03 - Manual (Page 26)

CS35L01/03
26 DS909F1
Note:
18. “Idle Current Draw vs. VBATT - HD Mode” capacitor values refer to C
FILT
when configured as the
“CS35L01/03’s Minimized Optional Output Filter”, shown in Figure 5 on page 17 . When VBATT is
below “VBATT Limit for HD/FHD Mode” (VB
LIM
), operation is restricted to SD Mode.
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
2.5 3 3.5 4 4.5 5 5.5
Id
le
Cu
rre
nt
Dra
w
(m
A )
VBATT Supply Voltage (V)
Figure 38. Idle Current Draw vs. VBATT - HD Mode
R
L
= 8
 + 33 H (Note 18)
Figure 39. Output Power vs. VBATT - HD Mode
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
2.5 3.0 3.5 4.0 4.5 5.0 5.5
Outp
ut Pow
er
(W
)
VBATT Supply Voltage (V)
R
L
= 8 
1% THD+N Ratio
R
L
= 8 
10% THD+N Ratio
R
L
= 4 
1% THD+N Ratio
R
L
= 4 
10% THD+N Ratio
470 pF
No Filter
1000 pF 2200 pF
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0 250 500 750 1000 1250 1500 1750 2000
E
ffi
ci
e n
cy
(
%
)
Output Power (mW)
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0 500 1000 1500 2000 2500 3000 3500
E ff
iciency
(%)
Output Power (mW)
Figure 40. Efficiency vs. Output Power - HD Mode
R
L
= 8
 + 33 H
Figure 41. Efficiency vs. Output Power - HD Mode
R
L
= 4
 + 33 H
4.2 V 3.7 V 4.2 V 3.7 V 5.0 V 5.0 V
0
50
100
150
200
250
300
350
400
450
0 250 500 750 1000 1250 1500 1750 2000
Current
Consu
mpt
ion
(mA)
Output Power (mW)
0
100
200
300
400
500
600
700
800
0 500 1000 1500 2000 2500 3000 3500
Current
Co
nsumpt
ion
(mA
)
Output Power (mW)
Figure 42. Supply Current vs. Output Power - HD Mode
R
L
= 8
 + 33 H
Figure 43. Supply Current vs. Output Power - HD Mode
R
L
= 4
 + 33 H
5.0 V
4.2 V
3.7 V
5.0 V
4.2 V
3.7 V