max98088 Maxim Integrated Products, Inc., max98088 Datasheet - Page 102

• Manufacturer Part Number: max98088
• Description: Stereo Audio Codec With Flexsound Technology
• Manufacturer: Maxim Integrated Products, Inc.

Stereo Audio Codec
with FLEXSOUND Technology
Table 25. Power Limiter Registers (continued)
The IC's distortion limiter ensures that the speaker amplifier’s output does not exceed the programmed THD+N limit.
The distortion limiter analyzes the Class D output duty cycle to determine the percentage of the waveform that is
clipped. If the distortion exceeds the programmed threshold, the output gain is reduced.
102
REGISTER
0x45
BIT
7
6
5
4
3
2
1
0
PWRT2
PWRT1
NAME
Power Limiter Time Constant 2
Select a value that matches the thermal time constant of the loudspeaker’s magnet.
Power Limiter Time Constant 1
Select a value that matches the thermal time constant of the loudspeaker’s voice coil.
VALUE
VALUE
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
TIME CONSTANT
TIME CONSTANT
Disabled
Disabled
(min)
0.50
0.67
0.89
1.19
1.58
2.11
2.81
0.50
0.67
0.89
1.19
1.58
2.11
2.81
(s)
DESCRIPTION
VALUE
VALUE
0xA
0xB
0xC
0xD
0xE
0xA
0xB
0xC
0xD
0xE
0x8
0x9
0xF
0x8
0x9
0xF
Distortion Limiter
TIME CONSTANT
TIME CONSTANT
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
(min)
3.75
5.00
6.66
8.88
3.75
5.00
6.66
8.88
(s)