PA5750

Low Power Stereo Audio CODEC

With Speaker and Headphone Amplifier.

ANALOG PRODUCTS DIVISION

561 E Elliot Road.#175 Chandler, AZ 85225 Tel: (480)539-2900. Fax: (480)632-1715.

10

www.protekanalog.com

Not for use in any life support systems.

95230 Rev.0. 04/09

6.1 Chip Control and Power Management

6.1.1. Register0 - Chip Control 1, Default 0000 0110

Bit Name

Bit

Description

SCPReset

7

0 – Normal (Default).

1 – Reset control Port Register to Default.

LRCM

6

0 – ALRCK disabled when both ADC disabled; DLRCK disabled when both DAC disabled (default).

1 – ALRCK and DLRCK disabled when all ADC and DAC disabled.

DACMCLK

5

0 – when SameFs-1, ADCMCLK is the chip master clock source (default).

1 – when SameFs=1, DACMCLK is the chip master clock source.

SameFs

4

0 – ADC Fs differs from DAC Fs (default).

1 – ADC Fs is the same as DAC Fs.

SeqEn

3

0 – internal up/down sequence disable (default)

1 – internal up/down sequence enable.

EnRef

2

0 – disable reference.

1 – enable reference (default).

VMIDSEL

1:0

00 – VMID disabled.

01 – 50kΩ divider enabled.

10 – 500kΩ divider enabled (default).

11 – 5 kΩ divider enabled.

6.1.2. Register1 – Chip Control 2, Default 0001 1100

Bit Name

Bit

Description

TSDEN

7

0 – thermal shutdown disabled (default).

1 – thermal shutdown enabled.

PdnOC

6

0 – over current shutdown disabled (default).

1 – over current shut down enabled.

LPVcmMOD

5

0 – normal (default).

1 – low power.

LPVrefBuf

4

0 – normal.

1 – low power (default).

PdnAna

3

0 – normal.

1 – entire analog power down (default).

Pdanlbiasgen

2

0 – normal.

1 – ibiasgen power down(default).

VrefLo

1

0 – normal (default).

1 – low power.

PdnVrefbuf

0

0 – normal (default).

1 – low power.

6.1.3. Register2 – Chip Power Management, Default 1100 0011.

Bit Name

Bit

Description

adc_DigPDN

7

0 – normal.

1 – resets ADC DEM, filter and serial DATA port (default).

dac_DigPDN

6

0 – normal.

1 – resets DAC DSM, DEM, filter and serial DATA port (default).

adc_stm_rst

5

0 – normal (default).

1 – reset ADC state machine to power down state.

dac_stm_rst

4

0 – normal (default).

1 – reset DAC state machine to power down state.

ADCDLL_PDN

3

0 – normal (default).

1 – ADC_DLL power down, stop ADC clock.

DACDLL_PDN

2

0 – normal (default).

1 – DAC_DLL power down, stop DAC clock

adcVref_PDN

1

0 – ADC analog reference power up.

1 – ADC analog reference power down (default).

dacVref_PDN

0

0 – DAC analog reference power up.

1 – DAC analog reference power down (default).