ASAHI KASEI

[AK4528]

MS0011-E-00

2000/1

- 6 -

ANALOG CHARACTERISTICS

(Ta=25

°C; VA, VD, VT=5.0V; AGND=DGND=0V; VREF=VA; fs=44.1kHz; Signal Frequency =1kHz; 24bit Data;

Measurement frequency = 20Hz

~ 20kHz at fs=44.1kHz, 40Hz ~ 40kHz at fs=96kHz; unless otherwise specified)

Parameter

min

typ

max

Units

Input PGA Characteristics:

ADC Analog Input Characteristics:

Analog Source impedance = 330

W

W

W

W

Resolution

24

Bits

Input Voltage

(Note 3)

±2.6

±2.8

±3.0

Vpp

Input Resistance

fs=44.1kHz

fs=96kHz

16

7

27

12

k

W

k

W

S/(N+D)

(-0.5dBFS)

fs=44.1kHz

fs=96kHz

88

84

94

92

dB

dB

DR

(-60dBFS)

fs=44.1kHz, A-weighted

fs=96kHz

100

95

108

103

dB

dB

S/N

fs=44.1kHz, A-weighted

fs=96kHz

100

95

108

103

dB

dB

Interchannel Isolation

90

110

dB

Interchannel Gain Mismatch

0.2

0.5

dB

Gain Drift

20

-

ppm/

°C

Input Voltage

(Note 3)

±2.6

±2.8

±3.0

Vpp

Input Resistance

fs=44.1kHz

fs=96kHz

16

7

27

12

k

W

k

W

Input DC Bias Voltage

(Note 4)

0.56VA

-

0.60VA

V

Power Supply Rejection

(Note 5)

-

50

-

dB

DAC Analog Output Characteristics:

Resolution

24

Bits

S/(N+D)

(0dBFS)

fs=44.1kHz

fs=96kHz

88

85

94

93

dB

dB

DR

(-60dBFS)

fs=44.1kHz, A-weighted

fs=96kHz

104

96

110

104

dB

dB

S/N

fs=44.1kHz, A-weighted

fs=96kHz

104

96

110

104

dB

dB

Interchannel Isolation

90

110

dB

Interchannel Gain Mismatch

0.2

0.5

dB

Gain Drift

20

-

ppm/

°C

Output Voltage

(Note 6)

5.0

5.4

5.8

Vpp

Load Resistance

(In case of AC load)

1

k

W

Output Current

1.5

mA

Load Capacitance

25

pF

Power Supply Rejection

(Note 5)

50

-

dB

Note: 3. This voltage is input to AIN+ and AIN- pin, and is proportional to VREF. Vin = 0.56 x VREF.

4. Measured by Figure 12. DC Bias Voltage, Vb = 4.7k / (3.3k + 4.7k) x VA = 0.5875VA.

5. PSR is applied to VA, VD, VT with 1kHz, 50mVpp. VREF pin is held a constant voltage.

6. Full scale (0dB) of the output voltage when summing the differential outputs, AOUT+/- by unity gain.

This voltage is proportional to VREF. Vout=1.08 x VREF x Gain.