PCM3168APAPR datasheet(47/66 Pages) TI1

47 / 66 page

PCM3168A

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SBAS452A – SEPTEMBER 2008 – REVISED JANUARY 2016

Table 24. Register: ADC Control 2

DEC

HEX

—

PSVAD2

PSVAD1

PSVAD0

—

BYP2

BYP1

BYP0

PSVAD[2:0]

ADC Power-save control

These bits control the ADC power-save mode. In power-save mode, DOUT is forced into ZERO with a fade-out

sequence, the internal ADC data are reset, and the ADC goes into a power-down state. For power-save mode release, a

fade-in sequence is applied on DOUT in resume process. The serial mode control is enabled during this mode. Wait

times greater than tADCDLY2 are required for the status change because of the power-save control turning on/off.

Default value: 000.

PSVAD

ADC Power-save control

xx0

ADC1/2 normal operation

xx1

ADC1/2 power-save mode

x0x

ADC3/4 normal operation

x1x

ADC3/4 power-save mode

0xx

ADC5/6 normal operation

1xx

ADC5/6 power-save mode

BYP[2:0]

ADC HPF bypass control

These bits control the HPF function and dc components of the input signal; internal dc offset is converted in bypass

mode.

Default value: 000.

BYP

ADC HPF bypass control

xx0

ADC1/2 normal output, HPF enabled

xx1

ADC1/2 bypassed output, HPF disabled

x0x

ADC3/4 normal output, HPF enabled

x1x

ADC3/4 bypassed output, HPF disabled

0xx

ADC5/6 normal output, HPF enabled

1xx

ADC5/6 bypassed output, HPF disabled

Table 25. Register: ADC Input Configuration

DEC

HEX

—

SEAD6

SEAD5

SEAD4

SEAD3

SEAD2

SEAD1

SEAD[6:1]

ADC Input configuration control

These bits control the input configuration of each ADC channel, differential or single-ended.

Default value: 00 0000 (all ADC channels have differential inputs).

SEAD

ADC Input configuration

xx xxx0

ADC1 differential input

xx xxx1

ADC1 single-ended input

xx xx0x

ADC2 differential input

xx xx1x

ADC2 single-ended input

xx x0xx

ADC3 differential input

xx x1xx

ADC3 single-ended input

xx 0xxx

ADC4 differential input

xx 1xxx

ADC4 single-ended input

x0 xxxx

ADC5 differential input

x1 xxxx

ADC5 single-ended input

0x xxxx

ADC6 differential input

1x xxxx

ADC6 single-ended input

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