AD1985 datasheet(7/48 Pages) AD

номер детали	AD1985

подробное описание детали	AC ??7 SoundMAX Codec

PDF	48 Pages

Scroll/Zoom	100%

производитель	AD [Analog Devices]

домашняя страница	http://www.analog.com

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AD1985

Rev. A | Page 7 of 48

POWER-DOWN STATES1

Table 12.

Parameter

PR[K:I]2

PR[6:0]2

I DVDD (3.3 V) Typ

I AVDD (5 V) Typ

Unit

FULL POWER-UP

000

000 0000

55.5

56.0

ADC

000

000 0001

47.4

49.9

FRONT DAC

000

000 0010

49.5

47.9

CENTER DAC

001

000 0000

55.5

56.0

SURROUND DAC

010

000 0000

49.0

47.5

LFE DAC

100

000 0000

55.1

56.0

ADC + ALL DACs

111

000 0011

15.8

24.2

MIXER

000

000 0100

55.5

34.3

ADC + MIXER

000

000 0101

47.4

27.4

ALL DACS + MIXER

111

000 0110

34.1

10.0

ADC + ALL DACS + MIXER

111

000 0111

14.3

2.5

STANDBY

111

011 1111

0.114

0.004

HEADPHONE STANDBY

000

100 0000

55.5

48.3

CLOCK SPECIFICATIONS

Table 13.

Parameter

Min

Typ

Max

Unit

INPUT CLOCK FREQUENCY (XTAL MODE OR CLOCK OSCILLATOR)

24.576

MHz

INPUT CLOCK FREQUENCY (REFERENCE CLOCK MODE)

14.31818

MHz

INPUT CLOCK FREQUENCY (USB CLOCK MODE)

48.000

MHz

RECOMMENDED CLOCK DUTY CYCLE

1 Currents measured with VREFOUT unloaded.

2 PR bits are controlled in Registers 0x2A and 0x26.

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