HT66FV1x0 Integrated Audio Amplifier Application Guideline
AN0486EN V1.10
10 / 16
June 8, 2021
Note: Generally speaking, the time shown in the figure should be greater than 200ms to
effectively suppress pop noise. A longer time will ensure a better suppression effect. This
time varies with different speakers.
Ramp up software flow as shown below
Ramp Up
Voice Playing Register Initialisation
(PLADL
=
0 ; PLADH
=
0 ; DAEN
=
1 ;
PAEN
=
0 ; MUTEB
=
1 ;
USVC6~USVC0
=
000_0000)
16-bit Play Data (PLADH/PLADL)+1
PLADH/PLADL
=
8000H?
Volume Setup
(USVC6~USVC0
=
Target Value)
Mute Speaker Output
(MUTEB
=
0)
Enable Power Amplifier Output
(PAEN
=
1)
Delay 200ms*
Enable Speaker Output
(MUTEB
=
1)
Return
Y
N
*: This time is not fixed but should be adjusted according to the actual condition.
