PA5750 Просмотр технического описания (PDF) - ProTek Devices.
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PA5750 Datasheet PDF : 30 Pages
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ANALOG PRODUCTS DIVISION
PA5750
Low Power Stereo Audio CODEC
With Speaker and Headphone Amplifier.
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).
00 – VMID disabled.
VMIDSEL
1:0
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).
561 E Elliot Road.#175 Chandler, AZ 85225 Tel: (480)539-2900. Fax: (480)632-1715.
10
95230 Rev.0. 04/09
www.protekanalog.com
Not for use in any life support systems.
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