AK4589_1 Datasheet, PDF (12/76 Pages) Asahi Kasei Microsystems – 2/8-Channel Audio CODEC with DIR

ASAHI KASEI
[AK4589]
Notes:
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. C_L=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) ±0.1dB
PB
0
18.9
kHz
-0.2dB
-
20.0
-
kHz
-3.0dB
-
23.0
-
kHz
Stopband
SB
28.0
kHz
Passband Ripple
PR
±0.04
dB
Stopband Attenuation
SA
68
dB
Group Delay
(Note 13)
GD
16
1/fs
Group Delay Distortion
∆GD
0
µs
ADC Digital Filter (HPF):
Frequency Response (Note 12) -3dB
FR
-0.1dB
1.0
Hz
6.5
Hz
DAC Digital Filter:
Passband
(Note 12) -0.1dB
PB
0
21.8
kHz
-6.0dB
-
24.0
-
kHz
Stopband
SB
26.2
kHz
Passband Ripple
PR
±0.02
dB
Stopband Attenuation
SA
54
dB
Group Delay
(Note 13)
GD
19.2
1/fs
DAC Digital Filter + Analog Filter:
Frequency Response:
0 ∼ 20.0kHz
FR
40.0kHz (Note 14)
FR
80.0kHz (Note 14)
FR
±0.2
dB
±0.3
dB
+0/-0.6
dB
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
- 12 -
2004/09