EVAL-ADT7463EB Analog Devices Inc, EVAL-ADT7463EB Datasheet - Page 44

• Manufacturer Part Number: EVAL-ADT7463EB
• Description: BOARD EVAL FOR ADT7463
• Manufacturer: Analog Devices Inc

Specifications of EVAL-ADT7463EB

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ADT7463
Bit
<2:0>
<3>
<6:4>
<7>
*This register becomes read-only when the Configuration Register 1 Lock bit is set to 1. Any further attempts to write to this register will have no effect.
Name
ACOU3
EN3
ACOU2
EN2
Table XXII. Register 0x63 – Enhance Acoustics Reg 2 (Power-On Default = 0x00)
R/W*
Read/Write
Read/Write
Read/Write
Read/Write
These bits select the ramp rate applied to the PWM3 output. Instead of PWM3 jump-
When this bit is 1, acoustic enhancement is enabled on PWM3 output.
These bits select the ramp rate applied to the PWM2 output. Instead of PWM2
When this bit is 1, acoustic enhancement is enabled on PWM2 output.
Description
ing instantaneously to its newly calculated speed, PWM3 will ramp gracefully at the rate
determined by these bits. This effect enhances the acoustics of the fan being driven by the
PWM3 output.
Time Slot Increase
000 = 1
001 = 2
010 = 3
011 = 5
100 = 8
101 = 12
110 = 24
111 = 48
jumping instantaneously to its newly calculated speed, PWM2 will ramp gracefully at the
rate determined by these bits. This effect enhances the acoustics of the fans being driven
by the PWM2 output.
Time Slot Increase
000 = 1
001 = 2
010 = 3
011 = 5
100 = 8
101 = 12
110 = 24
111 = 48
–44–
Time for 33% to 100%
35 s
17.6 s
11.8 s
7 s
4.4 s
3 s
1.6 s
0.8 s
Time for 33% to 100%
35 s
17.6 s
11.8 s
7 s
4.4 s
3 s
1.6 s
0.8 s
REV. B