AK4396 Datasheet, PDF (10/38 Pages) Asahi Kasei Microsystems – Advanced Multi-Bit 192kHz 24-Bit ΔΣ DAC

ASAHI KASEI
[AK4396]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=DVDD=5.0V; AVSS=DVSS=0V; VREFH=AVDD, VREFL=AVSS; Input data=24bit; R_L ≥ 1kΩ;
BICK=64fs; Input Signal Frequency = 1kHz; Sampling frequency = 44.1kHz; Measurement bandwidth = 20Hz ~ 20kHz;
External Circuit: Figure 17; unless otherwise specified.)
Parameter
min
typ
max
Units
Resolution
24
Bits
Dynamic Characteristics (Note 5)
THD+N
fs=44.1kHz
BW=20kHz
0dBFS
−60dBFS
fs=96kHz
BW=40kHz
0dBFS
−60dBFS
fs=192kHz
BW=40kHz
0dBFS
−60dBFS
BW=80kHz −60dBFS
Dynamic Range (−60dBFS with A-weighted)
(Note 6)
114
S/N (A-weighted)
(Note 7)
114
Interchannel Isolation (1kHz)
100
−100
−57
−97
−54
−97
−54
−51
120
120
120
−90
dB
-
dB
-
dB
-
dB
-
dB
-
dB
-
dB
dB
dB
dB
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Output Voltage
Load Capacitance
Load Resistance
0.15
0.3
dB
(Note 8)
20
-
ppm/°C
(Note 9)
±2.65
±2.8
±2.95
Vpp
25
pF
(Note 10)
1
kΩ
Power Supplies
Power Supply Current
Normal operation (PDN pin = “H”)
AVDD
DVDD (fs ≤ 96kHz)
DVDD (fs = 192kHz)
Power down (PDN pin = “L”)
AVDD+DVDD
Power Supply Rejection
(Note 11)
(Note 12)
(Note 13)
32
47
mA
8
-
mA
13
19
mA
10
100
µA
50
dB
Note 5. Measured by Audio Precision, System Two. Averaging mode. Refer to the evaluation board manual.
Note 6. By Figure 17. External LPF Circuit Example 2.101dB at 16bit data and 118dB at 20bit data.
Note 7. By Figure 17. External LPF Circuit Example 2. S/N does not depend on input bit length.
Note 8. The voltage on (VREFH − VREFL) is held +5V externally.
Note 9. Full-scale voltage(0dB). Output voltage scales with the voltage of (VREFH − VREFL).
AOUT (typ.@0dB) = (AOUT+) − (AOUT−) = ±2.8Vpp × (VREFH − VREFL)/5.
Note 10. For AC-load. 1.5kΩ for DC-Load
Note 11. typ. 5mA (@ DVDD=3.3V, fs ≤ 96kHz), typ. 8mA (@ DVDD=3.3V, fs = 192kHz)
Note 12. In the power-down mode. P/S pin = TTL pin = DVDD, and all other digital input pins including clock pins
(MCLK, BICK and LRCK) are held DVSS.
Note 13. PSR is applied to AVDD, DVDD with 1kHz, 100mVpp. VREFH pin is held +5V.
MS0336-E-00
- 10 -
2004/08