AK4571_05 参数 Datasheet PDF下载

ASAHI KASEI

[AK4571]

Analog Characteristics

Ta=25°C,VA=VD=3.3V, Signal Frequency=1kHz, Sampling Frequency Fs=44.1kHz BW=20Hz – 20kHz, TEST mode; unless otherwise

specified

Parameter

Min

typ

Max

Units

Mono ADC (1 channel)

Resolution

16

bits

S/N (A weight) @44.1kHz

83

dBA

(PGA is set to 0dB) AMP2I input : USB Normal mode

S/(N+D)

(-1.0dB analog input) USB Normal mode

73

dB

Full scale input Voltage

0.53

0.6

0.67

Vrms

MIC amplifier

S/N (A weight)

76

84

dBA

MICIN input AMP1O output

Gain 20dB Selected

+17

+20

+23

dB

Input Impedance

10

20

kΩ

Stereo DAC (2 channel)

Resolution

16

bits

S/N (A weight) @44.1kHz (DAC volume &master volume is set to 0dB)

84

dBA

USB Normal mode

S/(N+D)

(-1.0dB digital input) USB Normal mode

75

dB

Full scale output Voltage

0.53

0.6

0.67

Vrms

PGA

Step size

0

1.0

2.0

dB

Attenuation control range

-31

+24

dB

Input Impedance AMP2I input

10

20

kΩ

Master volume:

step size

0

1.0

2.0

dB

Attenuation control range

-47

0

dB

Output Load Resistance

10

kΩ

Output Load Capacitance

5

pF

Bass Boost

Internal Resistance

40

kΩ

External Resistance

360

400

kΩ

External Capacitance

5

pF

MIC Bias (Buffer Amp)

Output Voltage

1.94

2.2

2.46

Vdc

Output Current

2

mA

Power Supplies

mA

52

35

Analog

mA

23

15

Digital

mA

75

50

Total

uA

150

0

Power Down(Suspend)

MS0153-E-03

-7-

2005/06