WM8311 datasheet(244/302 Pages) WOLFSON

244 / 302 page

WM8311

Pre-Production

PP, May 2012, Rev 3.1

244

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

6:0

DC1_SLP_VSE

L [6:0]

000_0000 DC-DC1 SLEEP Voltage select

0.6V to 1.8V in 12.5mV steps

00h to 08h = 0.6V

09h = 0.6125V

…

48h = 1.4V (see note)

…

67h = 1.7875V

68h to 7Fh = 1.8V

Note - Maximum output voltage selection in 4MHz

switching mode is 48h (1.4V).

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R16474

(405Ah)

DC1 DVS

Control

12:11

DC1_DVS_SR

C [1:0]

DC-DC1 DVS Control Source

00 = Disabled

01 = Enabled

10 = Controlled by Hardware DVS1

11 = Controlled by Hardware DVS2

6:0

DC1_DVS_VS

EL [6:0]

000_0000 DC-DC1 DVS Voltage select

0.6V to 1.8V in 12.5mV steps

00h to 08h = 0.6V

09h = 0.6125V

…

48h = 1.4V (see note)

…

67h = 1.7875V

68h to 7Fh = 1.8V

Note - Maximum output voltage selection in 4MHz

switching mode is 48h (1.4V).

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R16475

(405Bh)

DC2 Control

15:14

DC2_RATE

[1:0]

DC-DC2 Voltage Ramp rate

00 = 1 step every 32us

01 = 1 step every 16us

10 = 1 step every 8us

11 = Immediate voltage change

DC2_PHASE

DC-DC2 Clock Phase Control

0 = Normal

1 = Inverted

WM8311 Datasheet(PDF) 244 Page - Wolfson Microelectronics plc

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