MAX9888EWY+T Maxim Integrated Products, MAX9888EWY+T Datasheet - Page 94

• Manufacturer Part Number: MAX9888EWY+T
• Description: IC CODEC AUDIO FLEXSOUND 63WLP
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive®, FLEXSOUND™r
• Type: Class Dr

Specifications of MAX9888EWY+T

• Output Type: 3-Channel with Stereo Headphones
• Max Output Power X Channels @ Load: 1.37W x 2 @ 8 Ohm; 40mW x 2 @ 16 Ohm
• Voltage - Supply: 2.8 V ~ 5.5 V
• Features: Depop, Differential Inputs, I²S, Microphone, Mute, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 63-WLP
• For Use With: MAX9888EVKIT+ - KIT EVALUATION FOR MAX9888
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Stereo Audio CODEC
with FLEXSOUND Technology
Table 26. 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.
94
0x43
7
6
5
4
3
2
1
0
PWRT2
PWRT1
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)
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)