Cirrus Logic CS35L00 - Manual (Page 26)

CS35L00
26 DS906PP1
Note:
18. “Idle Current Draw vs. VBATT - HD Mode” capacitor values refer to C
FILT
when configured as the
“CS35L00’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.
0.0
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)
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 Ω + 33 μH (Note 18)
Figure 39. Output Power vs. VBATT - HD Mode
R
L
= 8 Ω
1% THD+N Ratio
R
L
= 8 Ω
10% THD+N Ratio
R
L
= 4 Ω
1% THD+N Ratio
R
L
= 4 Ω
10% THD+N Ratio
470 pF
No Filter
1000 pF
2200 pF
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)
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)
Figure 40. Efficiency vs. Output Power - HD Mode
R
L
= 8 Ω + 33 μH
Figure 41. Efficiency vs. Output Power - HD Mode
R
L
= 4 Ω + 33 μH
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 Ω + 33 μH
Figure 43. Supply Current vs. Output Power - HD Mode
R
L
= 4
Ω + 33 μH
5.0 V
4.2 V
3.7 V
5.0 V
4.2 V
3.7 V