ASAHI KASEI
[AK4358]
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
L
≥
2k
Ω
; unless otherwise specified)
Parameter
Min
Typ
Max
Units
Resolution
24
Bits
(Note 4)
Dynamic Characteristics
THD+N
fs=44.1kHz
0dBFS
-94
-86
dB
BW=20kHz
-60dBFS
-48
-
dB
fs=96kHz
0dBFS
-92
-84
dB
BW=40kHz
-60dBFS
-45
-
dB
fs=192kHz
0dBFS
-92
-
dB
BW=40kHz
-60dBFS
-45
-
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)
Vpp
±
2.35
±
2.5
±
2.65
Load Resistance
(Note 8)
2
k
Ω
Power Supplies
Power Supply Current (AVDD+DVDD)
56
70
mA
Normal Operation (PDN = “H”, fs
≤
96kHz)
(Note 9)
62
85
mA
Normal Operation (PDN = “H”, fs=192kHz)
(Note 10)
10
100
µA
Power-Down Mode (PDN = “L”)
(Note 11)
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.
MS0203-E-01
-6-
2006/02
AKM [ ASAHI KASEI MICROSYSTEMS ]
