PCM3052ARTF datasheet(36/48 Pages) TI2

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ADPSV: ADC Power-Save Control (ADC)

DAPSV: DAC Power-Save Control (DAC)

OVR1: Oversampling Rate Control (DAC)

MUTx: Soft-Mute Control (DAC)

PCM3052A

SLES160 – NOVEMBER 2005

SRST = 0

Re-synchronization

SRST = 1

Normal operation (default)

The SRST bit controls system reset. The PCM3052A does not go into power-down state. The mode control

Default value: 0

ADPSV = 0

Normal operation (default)

ADPSV = 1

Power-save mode

The ADPSV bit controls ADC power-save mode. In power-save mode, ADC goes into power-down state, the

data in ADC are reset, and DOUT is forced into ZERO immediately. I2C control is enabled.

Default value: 0

DAPSV = 0

Normal operation (default)

DAPSV = 1

Power-save mode

The DAPSV bit controls the DAC power-save mode. In the power-save mode, the DAC output is faded out and

DAC goes into the power-down state. I2C control is enabled. A waiting time of more than 2100/fS from

power-save-mode assertion is required for the release of the power-save mode.

DIT function is available if SPDIF bit = 1, even though DAPSV = 1.

B15

B14

B13

B12

B11

B10

RSV

OVR1

RSV

MUT2

MUT1

Default value: 0

OVR1 = 0

× oversampling (default)

OVR1 = 1

128

× oversampling

The OVR1 bit is used to control the oversampling rate of the delta-sigma D/A converters. To write over this

where, x = 1 or 2, corresponding to the DAC output VOUTL (x = 1) and VOUTR (x = 2).

Default value: 0

MUTx = 0

Mute disabled (default)

MUTx = 1

Mute enabled

The mute bits, MUT1 and MUT2, are used to enable or disable the soft-mute function for the corresponding DAC

outputs, VOUTL and VOUTR. The soft-mute function is incorporated into the digital attenuators. When mute is

disabled (MUTx = 0), the attenuator and DAC operate normally. When mute is enabled by setting MUTx = 1, the

digital attenuator for the corresponding output is decreased from the current setting to infinite attenuation, one

attenuator step (0.5 dB) for every 8/fS seconds. This provides pop-free muting of the DAC output.

By setting MUTx = 0, the attenuator is increased one step for every 8/fS seconds to the previously programmed

attenuation level.

PCM3052ARTF 数据表(PDF) 36 Page - Texas Instruments

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