AK4601VQ Datasheet, PDF (23/111 Pages) Asahi Kasei Microsystems – Audio HUB CODEC with Digital Mixer

[AK4601]
2. DAC Block
(Ta=25C; AVDD=VREFH=3.0~3.6V; LVDD=3.0~3.6V; TVDD=1.7~3.6V; AVSS=VREFL=DVSS1=
DVSS2=0V)
2-1 Sharp Roll-Off Filter (DASD bit = “0”, DASL bit = “0”)
fs=48kHz
Parameter
Symbol
Min.
Typ.
Max.
Unit
SHARP ROLL-OFF
Passband
0.05dB
PB
0
21.7
kHz
(Note 27)
3.0dB
PB
23.4
kHz
Passband Ripple
(Note 28)
PR
-0.0032
0.0032 dB
Stopband
(Note 27)
SB
26.3
kHz
Stopband Attenuation (Note 30, Note 31)
SA
80
dB
Group Delay
(Note 29)
GD
-
27.3
-
1/fs
Digital Filter + SCF + SMF
(Note 30)
Frequency Response: 0  20.0kHz
-0.3
0.1
dB
fs=96kHz
Parameter
SHARP ROLL-OFF
Passband
0.05dB
(Note 27)
3.0dB
Passband Ripple
(Note 28)
Stopband
(Note 27)
Stopband Attenuation (Note 30, Note 31)
Group Delay
(Note 29)
Digital Filter + SCF + SMF (Note 30)
Frequency Response: 0  40.0kHz
Symbol
PB
PB
PR
SB
SA
GD
Min.
0
-0.0032
52.5
80
-
-0.5
Typ.
46.8
0
27.3
Max. Unit
43.5
kHz
kHz
0.0032 dB
kHz
dB
-
1/fs
0.1
dB
fs=192kHz
Parameter
Symbol
Min.
Typ.
Max.
Unit
SHARP ROLL-OFF
Passband
0.05dB
PB
0
87.0
kHz
(Note 27)
3.0dB
PB
93.6
kHz
Passband Ripple
(Note 28)
PR
-0.0032
0.0032 dB
Stopband
(Note 27)
SB
105
kHz
Stopband Attenuation (Note 30, Note 31)
SA
80
dB
Group Delay
(Note 29)
GD
-
27.3
-
1/fs
Digital Filter + SCF + SMF (Note 30)
Frequency Response: 0  80.0kHz
-1.9
0.1
dB
Note 27. The passband and stopband frequencies are proportional to fs (sampling rate).
“PB=0.4535  fs, SB=0.546  fs”
Note 28. Pass-band gain amplitude of double seep over sampling filter at the first step of Interpolator.
Note 29. Delay time caused by the digital filter calculation. This time is measured from setting of the
16/20/24/32-bit impulse data to the input registers to output of the analog peak signal.
Note 30. The output level with a 1kHz, 0dB sine wave input is defined as 0dB.
Note 31. Band width of Stopband Attenuation ranges from 0kHz to fs.
016000391-E-01
- 23 -
2016/12