AK4497 Datasheet, PDF (11/98 Pages) Asahi Kasei Microsystems – Quality Oriented 32-Bit 2ch DAC

[AK4497]
(Ta=25C; AVDD=TVDD=3.3V, DVDD=1.8V(@LDOE= “L”), AVSS=DVSS=VSSL/R=0V;
VREFHL/R=VDDL/R=5.0V, VREFLL/R= 0V; Input data = 24bit; BICK=64fs; Signal Frequency = 1kHz;
Sampling Frequency = 44.1kHz; Internal OPAMP GBW=30MHz (SC[1:0] bit=”00”); 2Vrms output mode
(GC[2:0] bit= “000” or GAIN= “L”); Heavy load drive mode=off(HLOAD bit= “0” or HLOAD= “L”); unless
otherwise specified.)
Power Supplies
Parameter
Min.
Typ.
Max.
Unit
Power Supply Current
Normal operation (PDN pin = “H”)
VDDL/R(total)
64
mA
VREFHL/R
1
mA
AVDD
-
1
mA
TVDD
fs= 44.1kHz
8
mA
LDOE= “H”
fs= 96kHz
-
13
mA
fs = 192kHz
-
20
mA
LDOE= “L”
1
mA
DVDD
fs= 44.1kHz
8
mA
LDOE= “L”
fs= 96kHz
13
mA
fs = 192kHz
Total Idd per channel (HLOAD= “H”)
・fs=44.1kHz
20
mA
45
mA/ch
Power down (PDN pin = “L”)
(Note 15)
TVDD+AVDD+VDDL/R+DVDD
-
10
A
Note 15. In the power down mode. The PSN, DEM0 pin = DVDD, and all other digital input pins including
clock pins (MCLK, BICK and LRCK) are held to DVSS.
Note 16. The DVDD pin becomes an output pin when the LDOE pin = “H”.
■ DSD mode
(Ta=25C; LDOE=L, AVDD=TVDD=3.3V, DVDD=1.8V; AVSS=DVSS=VSSL/R=0V;
VREFHL/R=VDDL/R=5.0V, VREFLL/R= 0V; Signal Frequency = 1kHz; Measurement bandwidth = 20Hz
~ 20kHz; External Circuit; unless otherwise specified.)
Parameter
Min.
Typ.
Max. Unit
Resolution
-
-
32
Bits
Dynamic Characteristics
THD+N
DSD dataStream: 2.8224MHz 0dBFS
-
-115
-
dB
(Note 17)
DSD dataStream: 5.6448MHz 0dBFS
-
-115
-
dB
DSD dataStream: 11.2896MHz 0dBFS
-
-115
-
dB
S/N
DSD dataStream: 2.8224MHz Digital“0”
-
127
-
dB
(A-weighted, DSD dataStream: 5.6448MHz Digital“0”
-
127
-
dB
Normal path)
(Note 17)
DSD dataStream: 11.2896MHz
Digital“0”
-
127
-
dB
DC Accuracy
Output Voltage (Normal path)
(Note 13)
2.65
2.8
2.95 Vpp
Output Voltage (Volume Bypass)
(Note 13)
2.6
2.5
2.63 Vpp
Note 17. Analog characteristics are not guaranteed when the DSD dataStream is 22.5782MHz.
Rev. 0.1
- 11 -
2015/11