ASAHI KASEI
Notes:
[AK4589]
5. S/N measured by CCIR-ARM is 96dB(@fs=48kHz).
6. For AC-load. 4kΩ for DC-load
7. PSR is applied to AVDD, DVDD, PVDD and TVDD with 1kHz, 50mVpp. VREFH pin is held a constant voltage.
8. S/N measured by CCIR-ARM is 102dB(@fs=48kHz).
9. CL=20pF, X'tal=24.576MHz, CM1-0=“10”, CM1-0=“10”, OCKS1-0="10"@48kHz,"00"@96kHz, "11"@192kHz.
10. TVDD=13mA(typ).
11. In the power-down mode. RX inputs are open and all digital input pins including clock pins (MCLK, BICK,
LRCK) are held DVSS.
FILTER CHARACTERISTICS
(Ta=25°C; AVDD, DVDD, PVDD=4.75∼5.25V; TVDD=2.7∼5.25V; fs=48kHz)
Parameter
Symbol
min
typ
max
Units
ADC Digital Filter (Decimation LPF):
Passband
(Note 12)
PB
0
-
-
18.9
-
-
kHz
kHz
kHz
±0.1dB
-0.2dB
-3.0dB
20.0
23.0
Stopband
SB
PR
SA
GD
28.0
68
kHz
dB
dB
1/fs
µs
Passband Ripple
Stopband Attenuation
Group Delay
±0.04
(Note 13)
16
0
Group Delay Distortion
GD
∆
ADC Digital Filter (HPF):
Frequency Response (Note 12)
-3dB
-0.1dB
FR
1.0
6.5
Hz
Hz
DAC Digital Filter:
Passband
(Note 12)
-0.1dB
-6.0dB
PB
0
-
26.2
21.8
-
kHz
kHz
kHz
dB
dB
1/fs
24.0
19.2
Stopband
SB
PR
SA
GD
Passband Ripple
Stopband Attenuation
Group Delay
±0.02
54
(Note 13)
DAC Digital Filter + Analog Filter:
FR
FR
FR
dB
dB
dB
Frequency Response:
0
20.0kHz
0.2
±
∼
40.0kHz (Note 14)
80.0kHz (Note 14)
0.3
±
+0/-0.6
Notes:
12. The passband and stopband frequencies scale with fs.
For example, 21.8kHz at –0.1dB is 0.454 x fs (DAC). The reference frequency of these responses is 1kHz.
13. The calculating delay time which occurred by digital filtering. This time is from setting the input of analog signal
to setting the 24bit data of both channels to the output register for ADC.
For DAC, this time is from setting the 20/24bit data of both channels on input register to the output of analog
signal.
14. 40kHz@fs=96kHz, 80kHz@fs=192kHz
MS0339-E-00
2004/09
- 12 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
