ADM1027ARQZ-RL71 ONSEMI [ON Semiconductor], ADM1027ARQZ-RL71 Datasheet - Page 38
ADM1027ARQZ-RL71
Manufacturer Part Number
ADM1027ARQZ-RL71
Description
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
1.ADM1027ARQZ-RL71.pdf
(56 pages)
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CHOOSING RAMP RATE FOR ACOUSTIC
ENHANCEMENT
The optimal ramp rate for acoustic enhancement can be found
through system characterization after the thermal optimization
has been finished. Each ramp rate’s effects should be logged, if
possible, to determine the best setting for a given solution.
Enhanced Acoustics Register 1 (Reg. 0x62)
<2:0> ACOU Select the ramp rate for PWM1.
Enhanced Acoustics Register 2 (Reg. 0x63)
<2:0> ACOU3 Select the ramp rate for PWM3.
<6:4> ACOU2 Select the ramp rate for PWM2.
Another way to view the ramp rates is as the time it takes for the
ADM1027
000 = 1 time slot = 35 sec
001 = 2 time slots = 17.6 sec
010 = 3 time slots = 11.8 sec
011 = 5 time slots = 7 sec
100 = 8 time slots = 4.4 sec
101 = 12 time slots = 3 sec
110 = 24 time slots = 1.6 sec
111 = 48 time slots = 0.8 sec
000 = 1 time slot = 35 sec
001 = 2 time slots = 17.6 sec
010 = 3 time slots = 11.8 sec
011 = 5 time slots = 7 sec
100 = 8 time slots = 4.4 sec
101 = 12 time slots = 3 sec
110 = 24 time slots = 1.6 sec
111 = 48 time slots = 0.8 sec
000 = 1 time slot = 35 sec
001 = 2 time slots = 17.6 sec
010 = 3 time slots = 11.8 sec
011 = 5 time slots = 7 sec
100 = 8 time slots = 4.4 sec
101 = 12 time slots = 3 sec
110 = 24 time slots = 1.6 sec
111 = 48 time slots = 0.8 sec
–38–
REV. A
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