ASAHI KASEI

[AK4358]

MS0203-E-01

2006/02

- 6 -

ANALOG CHARACTERISTICS

(Ta=25

°C; AVDD, DVDD=5V; VREFH=AVDD; 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 4)

fs=44.1kHz

BW=20kHz

0dBFS

-60dBFS

-94

-48

-86

-

dB

dB

fs=96kHz

BW=40kHz

0dBFS

-60dBFS

-92

-45

-84

-

dB

dB

THD+N

fs=192kHz

BW=40kHz

0dBFS

-60dBFS

-92

-45

-

-

dB

dB

Dynamic Range

(-60dBFS with A-weighted)

(Note 5)

102

112

dB

S/N

(A-weighted)

(Note 6)

102

112

dB

Interchannel Isolation (1kHz)

90

100

dB

Interchannel Gain Mismatch

0.2

0.5

dB

DC Accuracy

Gain Drift

100

-

ppm/

°C

Output Voltage

(Note 7)

±2.35

±2.5

±2.65

Vpp

Load Resistance

(Note 8)

2

k

Ω

Power Supplies

Power Supply Current (AVDD+DVDD)

Normal Operation (PDN = “H”, fs

≤96kHz)

(Note 9)

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

(Note 10)

Power-Down Mode (PDN = “L”)

(Note 11)

56

62

10

70

85

100

mA

mA

µA

Note 4. Measured by Audio Precision System Two. Refer to the evaluation board manual.

Note 5. 100dB at 16bit data.

Note 6. S/N does not depend on input bit length.

Note 7. Full scale voltage (0dB). Output voltage scales with the voltage of VREFH pin. AOUT (typ. @0dB) =

(AOUT+)-(AOUT-) =

±2.5Vpp×VREFH/5.0

Note 8. For AC-load. 4k

Ω for DC-load

Note 9 AVDD=40mA(Typ), DVDD=12mA(Typ)@44.1kHz&5V, 16mA(Typ)@96kHz&5V

Note 10 AVDD=40mA(Typ), DVDD=22mA(Typ)@192kHz&5V

Note 11. All digital inputs including clock pins (MCLK, BICK and LRCK) are held DVDD or DVSS.