[AK4344]

ANALOG CHARACTERISTICS

(Ta=25

°C; VDD=3.3V; VSS=0V; fs=44.1kHz, 96kHz; BICK=64fs; Signal Frequency=1kHz; 24bit Data;

Measurement frequency=20Hz

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

Parameter

min

typ

max

Units

Dynamic Characteristics (GAIN bit= “1”) :

Resolution

24

Bits

THD+N

fs=44.1kHz

BW=20kHz

0dBFS

−60dBFS

-90

−37

-80

-

dB

dB

fs=96kHz

BW=40kHz

0dBFS

−60dBFS

-88

−34

-

-

dB

dB

DR

(

−60dBFS with A-weighted)

92

100

dB

S/N

(A-weighted)

92

100

dB

Interchannel Isolation

80

100

dB

DC Accuracy:

Interchannel Gain Mismatch

0.2

0.5

dB

Gain Drift

100

-

ppm/

°C

Output Voltage: GAIN bit=“1”

(Note 3)

2.60

2.8

3.00

Vpp

Output Voltage: GAIN bit=“0”

(Note 4)

2.05

2.2

2.35

Vpp

Load Resistance

(Note 5)

10

k

Ω

Load Capacitance

25

pF

Power Supplies

Power Supply Current

Normal Operation (PDN pin = “H”, fs=44.1kHz)

(Note 6)

Normal Operation (PDN pin = “H”, fs=96kHz)

(Note 6)

Full Power-down mode (PDN pin = “L”)

(Note 7)

7.0

8.5

10

12.8

50

mA

mA

μA

Note 3. Full-scale voltage (0dB). Output voltage scales with the voltage of VDD, Vout = 0.85

× VDD (typ).

Note 4. Full-scale voltage (0dB). Output voltage scales with the voltage of VDD, Vout = 0.67

× VDD (typ).

Note 5. For AC-load.

Note 6. RSTN bit= “1”, PW bit= “1”

Note 7. All digital input pins are fixed to VDD or VSS.

MS0641-E-00

2007/06

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