AK4495EQ Datasheet, PDF (10/63 Pages) Asahi Kasei Microsystems – Quality-oriented Premium 32-Bit 2ch DAC

[AK4495S/95]
8. Electrical Characteristics
■ Handling of Unused Pin
(Ta=25C; AVDD=DVDD=3.3V; AVSS=DVSS=VSSL/R=0V; VREFHL/R=VDDL/R=5V, VREFLL/R=
VSSL/R=0V; Input data = 24bit; R_L  1k; BICK=64fs; Signal Frequency = 1kHz; Sampling Frequency =
44.1kHz; Measurement bandwidth = 20Hz ~ 20kHz; External Circuit: Figure 39; unless otherwise specified.)
Parameter
min
typ
max Unit
Resolution
-
-
32 Bits
Dynamic Characteristics (Note 5)
THD+N
fs=44.1kHz
BW=20kHz
0dBFS
0dBFS (VDDL/R=VREFHL/R=7.0V)
60dBFS
-
-
-
-101
-93
dB
-105
-
dB
-57
-47
dB
fs=96kHz 0dBFS
BW=40kHz 60dBFS
-
-98
-88
dB
-
-54
-44
dB
fs=192kHz 0dBFS
BW=40kHz 60dBFS
BW=80kHz 60dBFS
-
-98
-88
dB
-
-54
-44
dB
-
-51
-41
dB
Dynamic Range (60dBFS with A-weighted) (Note 6)
S/N (A-weighted)
(Note 7)
S/N (A-weighted, VDDL/R=7.0V)
S/N (Mono mode, A-weighted, VDDL/R=7.0V)
Interchannel Isolation (1kHz)
114
120
114
120
100
123
100
126
110
120
-
dB
-
dB
-
dB
-
dB
-
dB
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Output Voltage
Load Capacitance
Load Resistance
(Note 8)
(Note 9)
(Note 10)
-
-
2.65
-
1
0.15
0.3
dB
-
20 ppm/C
2.8 2.95 Vpp
-
25
pF
-
-
k
Power Supplies
Power Supply Current
Normal operation (PDN pin = “H”)
VDDL/R
33
42
mA
AVDD
1
2
mA
DVDD (fs= 44.1kHz)
-
8
12
mA
DVDD (fs= 96kHz)
-
14
20
mA
DVDD (fs = 192kHz)
-
15
23
mA
Power down (PDN pin = “L”) (Note 11)
AVDD+VDDL/R+DVDD
-
10
100 A
Note 5. Measured by Audio Precision, System Two. Averaging mode. Refer to the evaluation board manual.
When SC2:SC1:SC0 bit = “010”.
Note 6. Figure 39 External LPF Circuit Example 2. 101dB for 16-bit data and 118dB for 20-bit data.
Note 7. Figure 39 External LPF Circuit Example 2. S/N does not depend on input data size.
Note 8. The voltage on (VREFH  VREFL) is held +5V externally.
Note 9. Full-scale voltage(0dB). Output voltage scales with the voltage of (VREFHL/R  VREFLL/R).
AOUT (typ.@0dB) = (AOUT+)  (AOUT) = 2.8Vpp  (VREFHL/R  VREFLL/R)/5.
Note 10. Regarding Load Resistance, AC load is 1k (min) with a DC cut capacitor (Figure 39). DC load is
1.5k ohm (min) without a DC cut capacitor (Figure 38). The load resistance value is with respect to
ground. Analog characteristics are sensitive to capacitive load that is connected to the output pin.
Therefore the capacitive load must be minimized.
Note 11. In the power down mode. The PSN pin = DVDD, and all other digital input pins including clock pins
(MCLK, BICK and LRCK) are held DVSS.
MS1560-E-02
- 10 -
2014/04