WM8235 datasheet(73/154 Pages) CIRRUS

73 / 154 page

WM8235

Rev 4.6

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R4 (04h)

Setup Reg 2

VRLC_TOP_SE

selects output range of VRLCDAC

0 = AVDD

1 = 1.6V

PGAFS

control PGA input polarity

0 = negative

1 = positive

ADCFS

control ADC full scale range

0 = 1.2V

1 = 1.8V

CLPMD

select clamp mode

0 = line clamp

1 = bit clamp

CDS

CDS mode control

0 = S/H mode

1 = CDS mode

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R5 (05h)

Setup Reg 3

SF_BYPLS

bypass level shift of VRLC source follower

0 = use level shifter

1 = bypass level shifter

3:2

PT_SF[1:0]

source follower power trim

00 = 1mA

01 = 2mA

10 = 3mA

11 = 4mA

SF_INP

control source follower on signal inputs INP*

0 = disabled

1 = enabled

SF_VRLC

control source follower on VRLC

0 = disabled

1 = enabled

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R6 (06h)

VRLC control

VRLCEN

enable for VRLC DAC

0 = disabled

1 = enabled

6:5

VRLC_ISEL[1:0]

selects output current capability

00 = Up to 2mA

01 = Up to 3mA

10 = Up to 4mA

11 = reserved (Up to 2mA)

WM8235 Datasheet(PDF) 73 Page - Cirrus Logic

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