AS3525-A/-B C22O22
Data Sheet, Confidential
7.4.7.5 Power Save Options
When driving > 4Ω, two power save options can be chosen.
The output driver stage can be set to only 25% drive capacity, which will reduce the maximum output power. Additionally the bias currents can be
reduced to 50% in 3 steps.
Table 116 Speaker Power-Save Options
LSP_LP
IBR_LSP
IDD_LSP (typ.)
8mA
Load
0
1
1
1
1
00
00
01
10
11
4 Ohm
2.8mA
16-32 Ohm
16-32 Ohm
16-32 Ohm
16-32 Ohm
2.4mA
1.9mA
1.5mA
BVDD = 3.3V, TA= 25oC unless otherwise mentioned
7.4.7.6 Parameter
Table 117 Speaker Amplifier Parameter
Symbol
RL
Parameter
Output Load
Notes
Min
Typ
Max Unit
stereo mode
4
8
Ohm
Ohm
W
mono differential mode
Pout
A0
Maximum Output Power
Gain
1
RL= 8Ω
programmable gain
-40.5
70
6
dB
dB
dB
mA
uA
ms
dB
dB
Gain Step-Size
1.5
75
Ax
PSRR
Power Supply Rejection Ratio 200Hz-20kHz, 720mVpp, no load
Short Current Protection Level
700
IOUT_pd
Tpower_up
SNR
IOUT power down
-20
20
100
Signal to Noise Ratio
Mute Attenuation
90
120
BVDD = 5V, TA= 25oC unless otherwise mentioned
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