ASAHI KASEI

[AK4385]

MS0246-E-01

2006/01

- 4 -

ANALOG CHARACTERISTICS

(Ta=25

°C; VDD=5.0V; fs=44.1kHz; BICK=64fs; Signal Frequency=1kHz; 24bit Input Data;

Measurement frequency=20Hz

∼ 20kHz; R

Parameter

min

typ

max

Units

Resolution

24

Bits

Dynamic Characteristics

(Note 3)

fs=44.1kHz

BW=20kHz

0dBFS

-60dBFS

-94

-44

-84

-

dB

dB

fs=96kHz

BW=40kHz

0dBFS

-60dBFS

-92

-41

-

-

dB

dB

THD+N

fs=192kHz

BW=40kHz

0dBFS

-60dBFS

-92

-41

-

-

dB

dB

Dynamic Range

(-60dBFS with A-weighted)

(Note 4)

100

108

dB

S/N

(A-weighted)

(Note 5)

100

108

dB

Interchannel Isolation (1kHz)

90

110

dB

Interchannel Gain Mismatch

0.2

0.5

dB

DC Accuracy

Gain Drift

100

-

ppm/

°C

Output Voltage

(Note 6)

±2.55

±2.75

±2.95

Vpp

Load Resistance

(Note 7)

4

k

Ω

Power Supplies

Power Supply Current (VDD)

Normal Operation (PDN = “H”, fs

≤96kHz)

Normal Operation (PDN = “H”, fs=192kHz)

Power-Down Mode (PDN = “L”)

(Note 8)

17

20

10

27

32

100

mA

mA

µA

Notes: 3. Measured by Audio Precision (System Two). Refer to the evaluation board manual.

4. 100dB at 16bit data.

5. S/N does not depend on input bit length.

6. Full-scale voltage (0dB). Output voltage scales with the voltage of VREF,

AOUT (typ.@0dB)=(AOUT+)-(AOUT-)=

±2.75Vpp × VREF/5.

7. For AC-load. 4k

Ω for DC-load.

8. All digital inputs including clock pins (MCLK, BICK and LRCK) are held VDD or VSS.