AK4393_03 Datasheet, PDF (5/23 Pages) Asahi Kasei Microsystems – Advanced Multi-Bit 96kHz 24-Bit ΔΣ DAC

ASAHI KASEI
[AK4393]
ANALOG CHARACTERISTICS
(Ta = 25°C; AVDD = 5V, DVDD = 3.3V; AVSS, BVSS, DVSS = 0V, VREFH = AVDD, VREFL = AVSS;
fs = 44.1kHz; BICK = 64fs; Signal Frequency = 1kHz; 24bit Input Data; Measurement Bandwidth = 20Hz~20kHz;
R_L ≥ 600Ω; External circuit: Figure 11; unless otherwise specified)
Parameter
min
typ
max
Units
Resolution
24
Bits
Dynamic Characteristics (Note 5)
THD+N
fs=44.1kHz
BW=20kHz
0dBFS
-60dBFS
-100
-90
dB
-53
-
dB
fs=96kHz
0dBFS
-97
-86
dB
BW=40kHz -60dBFS
-51
-
dB
Dynamic Range
fs=44.1kHz (Note 6)
112
117
dB
(-60dBFS with A-weighted)
(Note 7)
-
120
dB
fs=96kHz
111
116
dB
(Note 7)
-
118
dB
S/N (A-weighted
fs=44.1kHz (Note 8)
112
117
dB
(Note 7)
-
120
dB
fs=96kHz
111
116
dB
(Note 7)
-
118
dB
Interchannel Isolation (1kHz)
100
120
dB
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Output Voltage
Load Resistance
Output Current
0.15
0.3
dB
(Note 9)
20
-
ppm/°C
(Note 10) ±2.25
±2.4
±2.55
Vpp
(Note 11)
600
Ω
3.5
mA
Power Supplies
Power Supply Current
Normal Operation (PDN = “H”)
AVDD
60
-
mA
DVDD(fs=44.1kHz)
3
-
mA
DVDD(fs=96kHz)
5
-
mA
AVDD + DVDD
90
mA
Power-Down Mode (PDN = “L”)
AVDD + DVDD
(Note 12)
10
50
µA
Power Supply Rejection
(Note 13)
50
dB
Notes: 5. At 44.1kHz, measured by Audio Precision, System Two. Averaging mode.
At 96kHz, measured by ROHDE & SCHWARZ, UPD. Averaging mode.
Refer to the eva board manual.
6. 101dB at 16bit data and 116dB at 20bit data.
7. By Figure12. External LPF Circuit Example 2.
8. S/N does not depend on input bit length.
9. The voltage on (VREFH-VREFL) is held +5V externally.
10. Full-scale voltage (0dB). Output voltage scales with the voltage of (VREFH-VREFL).
AOUT (typ.@0dB) = (AOUT+) - (AOUT-) = ±2.4Vpp×(VREFH-VREFL)/5.
11. For AC-load. 1kΩ for DC-load.
12. In the power-down mode. P/S = DVDD, and all other digital input pins including clock pins (MCLK, BICK
and LRCK) are held DVSS.
13. PSR is applied to AVDD, DVDD with 1kHz, 100mVpp. VREFH pin is held +5V.
M0039-E-02
-5-
2003/09