ak4683 AKM Semiconductor, Inc., ak4683 Datasheet - Page 10

• Manufacturer Part Number: ak4683
• Description: Asynchronous Multi-channel Audio Codec With Dir/t
• Manufacturer: AKM Semiconductor, Inc.

(Ta=25°C; AVDD1, AVDD2, DVDD, PVDD, HVDD=4.5∼5.5V; TVDD=2.7∼5.5V; fs=48kHz)
Parameter
ADC Digital Filter (Decimation LPF):
Passband
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Group Delay Distortion
ADC Digital Filter (HPF):
Frequency Response
DAC Digital Filter:
Passband
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
DAC Digital Filter + Analog Filter:
Frequency Response:
Note 14. The passband and stopband frequencies are proportional to fs.
Note 15. The calculating delay time which occurred by digital filtering. This time is from setting the input of analog
Note 16. 40kHz@fs=96kHz, 80kHz@fs=192kHz
MS0427-E-02
signal to setting the 24bit data of both channels to the output register of PORTA or PORTB.
For DAC, this time is from setting the 20/24bit data of both channels on input register of PORTA or PORTB to
the output of analog signal.
For example, 21.8kHz at –0.1dB is 0.454 x fs (DAC). The reference frequency of these responses is 1kHz.
(Note 14)
(Note 14)
(Note 14)
0 ∼ 20.0kHz
40.0kHz
80.0kHz
-3dB
-0.1dB
-0.1dB
-6.0dB
(Note 15)
(Note 15)
±0.1dB
-0.2dB
-3.0dB
(Note 16)
(Note 16)
FILTER CHARACTERISTICS
Symbol
ΔGD
- 10 -
GD
GD
SA
PB
SB
PR
SA
FR
PB
SB
PR
FR
FR
FR
26.2
min
28.0
54
68
0
0
-
-
-
±0.2
±0.3
±1.0
20.0
23.0
24.0
typ
1.0
6.5
21
19
0
±0.04
±0.02
max
18.9
21.8
-
-
-
[AK4683]
Units
2007/04
kHz
kHz
kHz
kHz
kHz
kHz
kHz
1/fs
1/fs
dB
dB
Hz
Hz
dB
dB
dB
dB
dB
µs