AK4527VQ 参数 Datasheet PDF下载

ASAHI KASEI

[AK4527]

ANALOG CHARACTERISTICS

(Ta=25°C; AVDD, DVDD, TVDD=5V; AVSS, DVSS=0V; VREFH=AVDD; fs=44.1kHz; BICK=64fs;

Signal Frequency=1kHz; 24bit Data; Measurement Frequency=20Hz~20kHz at 44.1kHz, 20Hz~40kHz at fs=96kHz;

unless otherwise specified)

Parameter

min

typ

max

Units

ADC Analog Input Characteristics: Differential Inputs; Analog Source Impedance=470W

Resolution

24

Bits

S/(N+D)

(-0.5dBFS)

fs=44.1kHz

84

92

dB

(Note 8)

fs=96kHz

78

88

dB

DR

(-60dBFS)

fs=44.1kHz, A-weighted

94

102

dB

fs=96kHz

88

96

dB

fs=96kHz, A-weighted

93

102

dB

S/N

(Note 9)

fs=44.1kHz, A-weighted

94

102

dB

fs=96kHz

88

96

dB

fs=96kHz, A-weighted

93

102

dB

Interchannel Isolation

90

110

dB

DC Accuracy

Interchannel Gain Mismatch

0.2

0.3

dB

Gain Drift

20

-

ppm/°C

Input Voltage

AIN=0.6xVREFH

(Note 10)

2.85

3.0

3.15

Vpp

Input Resistance

(Note 11)

18

28

kW

Power Supply Rejection

(Note 12)

50

dB

DAC Analog Output Characteristics:

Resolution

24

Bits

S/(N+D)

fs=44.1kHz

80

90

dB

fs=96kHz

78

88

dB

DR

(-60dBFS)

fs=44.1kHz, A-weighted

95

106

dB

fs=96kHz

88

100

dB

fs=96kHz, A-weighted

94

106

dB

S/N

(Note 13)

fs=44.1kHz, A-weighted

95

106

dB

fs=96kHz

88

100

dB

fs=96kHz, A-weighted

94

106

dB

Interchannel Isolation

90

110

dB

DC Accuracy

Interchannel Gain Mismatch

0.2

0.5

dB

Gain Drift

20

-

ppm/°C

Output Voltage

AOUT=0.6xVREFH

2.75

3.0

3.25

Vpp

Load Resistance

5

kW

Power Supply Rejection

(Note 12)

50

dB

Power Supplies

Power Supply Current (AVDD+DVDD+TVDD)

Normal Operation (PDN = “H”)

mA

56

35

AVDD

mA

40

25

DVDD+TVDD fs=44.1kHz

(Note 14)

mA

56

35

fs=96kHz

µA

100

10

Power-down mode (PDN = “L”)

(Note 15)

Notes:

8. In case of single ended input, S/(N+D)=80dB(typ, @AVDD=5V, fs=44.1kHz).

9. S/N measured by CCIR-ARM is 98dB(@fs=44.1kHz).

10. Full scale input for each AIN+/- pin is 1.5Vpp in differential mode.

11. Input resistance is 14kW typically at fs=96kHz.

12. PSR is applied to AVDD, DVDD and TVDD with 1kHz, 50mVpp. VREFH pin is held a constant voltage.

13. S/N measured by CCIR-ARM is 102dB(@fs=44.1kHz).

14. DVDD=24.9mA, TVDD=0.1mA(typ).

15. In the power-down mode. All digital input pins including clock pins (MCLK, BICK, LRCK) are held DVSS.

2000/05

-9-

M0079-E-01