AK4452VN Datasheet, PDF (13/91 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 2ch Premium DAC

[AK4452]
■ Sharp Roll-Off Filter Characteristics
Sharp Roll-Off Filter Characteristics (fs= 44.1kHz)
(Ta=-40  105C; AVDD=3.0  5.5V, TVDD=1.7  3.6V; Normal Speed Mode; DEM=OFF,
SLOW bit = “0”, SD bit=“0”)
Parameter
Symbol min
typ
max
Unit
Digital Filter
Pass band
(Note 17)
PB
0
20.0
kHz
Pass band Ripple
(Note 18)
PR
-0.0032
0.0032
dB
Stop band
(Note 17)
SB
24.1
kHz
Stop band Attenuation
(Note 20)
SA
80
dB
Group Delay
(Note 19)
GD
-
26.8
-
1/fs
Frequency Response (Note 20) 0.07dB
-
0
20.0
kHz
6.0dB
-
-
22.05
-
kHz
Digital Filter + SCF
(Note 20)
Frequency Response: 0  20.0kHz
-0.2
0.2
dB
Sharp Roll-Off Filter Characteristics (fs= 96kHz)
(Ta=-40  105C; AVDD=3.0  5.5V, TVDD=1.7  3.6V; Double Speed Mode; DEM=OFF, SLOW bit = “0”,
SD bit=“0”)
Parameter
Symbol min
typ
max
Unit
Digital Filter
Pass band
(Note 17)
PB
0
43.5
kHz
Pass band Ripple
(Note 18)
PR
-0.0032
0.0032
dB
Stop band
(Note 17)
SB
52.5
0
43.5
Stop band Attenuation
(Note 20)
SA
80
dB
Group Delay
(Note 19)
GD
-
26.8
-
1/fs
Frequency Response (Note 20) 0.07dB
-
0
43.5
kHz
6.0dB
-
-
48.0
-
kHz
Digital Filter + SCF
(Note 20)
Frequency Response: 0  40.0kHz
-0.3
0.3
dB
Sharp Roll-Off Filter Characteristics (fs= 192kHz)
(Ta=-40  105C; AVDD=3.0  5.5V, TVDD=1.7  3.6V; Quad Speed Mode; DEM=OFF, SLOW bit = “0”,
SD bit=“0”)
Parameter
Symbol
min
typ
max
Unit
Digital Filter
Pass band
(Note 17)
PB
0
87.0
kHz
Pass band Ripple
(Note 18)
PR
-0.0032
0.0032
dB
Stop band
(Note 17)
SB
105
kHz
Stop band Attenuation
(Note 20)
SA
80
dB
Group Delay
(Note 19)
GD
-
26.8
-
1/fs
Frequency Response (Note 20) 0.07dB
-
0
87.0
kHz
6.0dB
-
-
96.0
-
kHz
Digital Filter + SCF
(Note 20)
Frequency Response: 0  80.0kHz
-1
0.1
dB
Note 17. The pass band and stop band frequencies scale with fs. For example, PB=0.4535×fs, SB=0.546×fs.
Note 18. It is the pass band gain amplitude of the double over sampling filter at the first step of the Interpolator.
Note 19. The calculating delay time which occurred by digital filtering. This time is from setting the
16/20/24/32bit data of both channels to input register to the output of analog signal.
Note 20. The output level is assumed as 0dB when inputting a 1kHz 0dB sine wave.
*Digital filter characteristics are based on simulation results.
Rev. 0.1
- 13 -
2014/04