AK4543VQ 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AK4543VQ

AC’97™ Rev 2.1 Multimedia Audio CODEC

Asahi Kasei Microdevices 

[ASAHI KASEI]

[AK4543]

AK4543 Analog Characteristics

Ta=25°C,AVdd=5.0V±5%, DVdd=3.3V±5% or 5V±5%, fs=48KHz, Signal Frequency =1kHz

All volume setting for ADC/DAC performance measurement is 0dB.

Parameter

min

Typ

Audio-ADC

Resolution

S/N (A weighted)

85

90

S/(N+D)

(-1dB analog input)

70

77

Inter Channel Isolation

70

77

Inter Channel Gain Mismatch

Full Scale Input Voltage

0.88

1.0

Power Supply Rejection

50

Audio DAC: measured at AOUTL/AOUTR via MIXER path

Resolution

S/N (A weighted)

: mixer+DAC measured at AOUT

84

89

S/(N+D)

(-1dB digital input)

75

83

Inter Channel Isolation

70

80

Inter Channel Gain Mismatch

Full Scale Output Voltage

0.83

0.95

Total Out-of-Band Noise (28.8kHz - 100kHz)

-70

Power Supply Rejection

50

MIC Amplifier / MUX

Gain : 20dB is selected

18

20

Master volume (Mono, Stereo, True Line Level Out) : 1.5dB x 32 step

Step Size

-1.5

Attenuation Control Range

Load Resistance

-46.5

10

PC Beep : 3dB x 16 step

Step Size

Attenuation Control Range

Analog Mixer : 1.5dB x 32 step

Step Size

Gain Control Range

-3.0

-45

-1.5

-34.5

Record Gain : 1.5dB x 16 step

Step Size

Gain Control Range

Mixer

Input Voltage (except for MIC)

Input Voltage MIC : Gain = 0dB

MIC : Gain = 20dB

S/N(A weighed) : 0dB setting, 1 path is selected at Mixer

CD to AOUT:

Other analog input to AOUT

Input Impedance (Input gain=0dB,Rec_MUTE=off)

PC_BEEP only

Others(PHONE, LINE, CD, AUX, VIDEO)

Input Impedance (MIC1 and MIC2)

+1.5

0

1.0

1.0

0.1

85

95

95

(10)

80

(10)

40

(10)

22

Power Supplies

Analog Power Supply Current(AVdd1 & AVdd2)

All ON mode(all PR_bits are 0)

36

Cold Reset status(Reset#=L, Vref is ON)

2.5

All OFF mode(all PR_bits are 1)

0

Digital Power Supply Current(DVdd1 & DVdd2)

All ON mode(all PR_bits are 0) at DVDD=5V

13

All ON mode(all PR_bits are 0) at DVDD=3.3V

6.6

All OFF mode(all PR_bits are 1)

0

max

18

0.5

1.12

18

1.0

1.07

22

0

0

+12

+22.5

54

5

0.2

20

10

0.2

Units

Bits

dB

dBFS

dB

dB

Vrms

dB

Bits

dB

dBFS

dB

dB

Vrms

dB

dB

dB

dB

dB

kΩ

dB

dB

dB

dB

dB

dB

Vrms

Vrms

Vrms

dB

dB

kΩ

kΩ

kΩ

mA

mA

mA

mA

mA

mA

<M0046-E-01>

-5-

1999/01

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