AD1988A Просмотр технического описания (PDF) - Analog Devices

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AD1988A

High Definition Audio SoundMAX® Codec

Analog Devices 

AD1988A/AD1988B

Parameter

POWER SUPPLY

Analog (AVDD)

Power Supply Range

Power Dissipation

Supply Current

Digital (DVDD)

Power Supply Range

Power Dissipation

Supply Current

Digital I/O (DVIO)

Power Supply Range

Power Dissipation

Supply Current

Power Supply Rejection1 (AVDD)

Conditions/Comments

3.3 V ± 5%

3.3 V ± 10%

3.3 V ± 10%

100 mV p-p signal @ 1 kHz

Typ

AD1988A/

Min AD1988B Max Unit

3.13 3.30

3.46 V

155/172

mW

47/52

mA

2.97 3.30

3.63 V

247.5/238

mW

75/75

mA

2.97 3.30

3.96

1.20

80

3.63 V

mW

mA

dB V

1 Guaranteed, not tested.

2 SNR measurement defined as “the difference in level between a reference output signal and the device output with no signal applied.” This definition is taken from B.

Metzler, Audio Measurement Handbook, 1st edition, Audio Precision, Inc., 1993, p. 165.

3 RMS values assume sine wave input.

Table 2. Power-Down States

Parameter

POWER-DOWN STATES

FUNCTION Node

DAC Pair

ADC Pair

Mixer Power Control (and Associated Amps)

MIC_BIAS

RESET

Comments

Powered down saves (each)

Powered down saves (each)

Saves

Powered down saves

Low (active) state

D-State

AD1988A/AD1988B

DIDD Typ AIDD Typ

Unit

D3

21/20

1.2/1.7

mA

D3

6/6

5/5.6

mA

D3

5.3/5.4

3.2/3.1

mA

D3

0/0

2.0/2.4

mA

D3

0/0

0.5/0.5

mA

2.9/2.7

3.1/3.4

mA

Rev. 0 | Page 6 of 20

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