FEDL22620-01
ML22620
POP
Description
0
Without pop noise suppression
1
With pop noise suppression
In case that this bit is set to "1", when the AEN1 bit is set to "0" and the AEN0 bit is set to "1", the line amplifier output
rises from the DGND level to the SG level at the specified time (tPUPA2) and the line amplifier output enters the
power-up state. When the AEN0 bit is set to "0", the line amplifier output falls from the SG level to the DGND level
at the specified time (tPDA2) and the line amplifier output enters the power-down state.
In case that this bit is set to "0", when the AEN1 bit is set to "0" and the AEN0 bit is set to "1", the line amplifier output
rises from the DGND level to the SG level at the specified time (tPUPA3) and the line amplifier output enters the
power-up state. When the AEN0 bit is set to "0", the line amplifier output falls from the SG level to the DGND level
at the specified time (tPDA3) and the line amplifier output enters the power-down state.
The settings of the AEN1/AEN0/POP bits for power-down and power-up of the analog section when the speaker amplifier
output and line amplifier output are as follows. When using a Class D amplifier with speaker amplifier outputs, set it to the
power-up state (AEN1/AEN0= "01") or the power-down state (AEN1/AEN0= "00"). If DAMP = "1" is selected, do not set
AEN1= "1".
Mode
AEN1
AEN0
POP
Description
Speaker amplifier
output
0
0
*1
In the power-down state or
changeover to the power-down state.
0
1
*1
In the power-up state or
changeover to the power-up state
SPP pin
Line amplifier output
0
0
0
In the power-down state or
changeover to the power-down state without Pop Noise Suppression
1
0
0
In the power-up state or
changeover to the power-up state without Pop Noise Suppression
0
0
1
In the power-down state or
changeover to the power-down state with pop noise suppression
1
0
1
In the power-up state or
changeover to the power-up state with pop noise suppression
*1 Settings can be enabled for both 0 and 1.
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Summary of Contents for LAPIS Semiconductor ML22620
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