WM8232 datasheet(24/141 Pages) CIRRUS

24 / 141 page

WM8232

Rev 4.6

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R28 (1Ch)

PLL divider

control 1

6:4

PLL_EXDIV_

SEL[2:0]

001

Select EX DIV ratio.

Need to set according to input frequency. See Table 4.

000 = 1

001 = 2

010 = 4

011 = 8

100 = 16

101 to 111 = reserved.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R128 (80h)

DLL config 1

5:4

DLGAIN[1:0]

gain control of DLL delay line

Need to set according to input frequency. See Table 4.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R129 (81h)

DLL config 2

5:4

LVDLGAIN[1:0]

gain control of LVDS DLL delay line

Need to set according to input frequency. See Table 4.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R432 (1B0h)

User access

control

USER_KEY

0 = User access disabled

1 = User access enabled

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R436 (1B4h)

LDO2 control

4:0

LDO2 VSEL

1_0000

1_0000 = 1.8V

1_0010 = 2.0V

Notes:

To change the LDO2 control, the USER_KEY bit must be set to ‘1’.

If it’s not required to change this register, it must be set as default.

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