AK4490EN Datasheet, PDF (19/68 Pages) Asahi Kasei Microsystems – Premium 32-Bit 2ch DAC

[AK4490EN]
■ DSD Mode Characteristics
(Ta=-40~85C; AVDD=DVDD=3.0  3.6, TVDD=1.6V  DVDD, VREFHL/R=VDDL/R=4.75  5.25V;
fs=44.1kHz; DP bit=“1”, DSDF bit=“0”)
Parameter
Min.
Typ.
Max.
Unit
Digital Filter Response
Frequency Response (Note 21) 20kHz
-
-0.4
-
dB
50kHz
-
-2.8
-
dB
100kHz
-
-15.5
-
dB
(Ta=-40~85C; AVDD=DVDD=3.0  3.6, TVDD=1.6V  DVDD, VREFHL/R=VDDL/R=4.75  5.25V;
fs=44.1kHz; DP bit=“1”, DSDF bit=“1”, DSDD bit=“1”)
Parameter
Min.
Typ.
Max.
Unit
Digital Filter Response
20kHz
-
-0.05
-
dB
Frequency Response (Note 21) _50kHz
-
-0.29
-
dB
100kHz
-
-1.16
-
dB
150kHz
-
-2.8
-
dB
Note 20. The peak level of DSD signal should be in the range of 25% ~ 75% duty according to the SACD
format book (Scarlet Book).
Note 21. The output level is assumed as 0dB when a 1kHz 25% ~ 75% duty sine wave is input.
■ DC Characteristics
(Ta=25C; AVDD=DVDD=3.0  3.6, TVDD=1.6V  DVDD, VREFHL/R=VDDL/R=4.75  5.25V)
Parameter
Symbol
Min.
Typ.
Max.
Unit
TVDD=1.6  3.0V
High-Level Input Voltage
VIH 80%TVDD
-
-
V
Low-Level Input Voltage
VIL
-
-
20%TVDD V
TVDD=3.0  DVDD
High-Level Input Voltage
VIH 70%TVDD
-
-
V
Low-Level Input Voltage
VIL
-
-
30%TVDD V
High-Level Output Voltage
(DZFL/R pins: Iout=-100µA)
VOH DVDD0.5
-
-
V
Low-Level Output Voltage
(except SDA pin : Iout= 100µA)
VOL
-
-
0.5
V
(SDA pin, 2.0V  TVDD  3.6V: Iout= 3mA) _VOL
-
-
0.4
V
(SDA pin, 1.6V  TVDD  2.0V: Iout= 3mA) _VOL
-
20%DVDD V
Input Leakage Current
(Note 22)
Iin
-
-
10
A
Note 22. The DEM1, I2C and ACKS/CAD1 pins have internal pull-down and DEM0 and PSN pins have
internal pull-up devices, nominally 100k. Therefore the DEM1, I2C, ACKS/CAD1, DEM0 and
PSN pins are not included.
015013666-E-01
- 19 -
2015/12