ak4564 AKM Semiconductor, Inc., ak4564 Datasheet - Page 10

• Manufacturer Part Number: ak4564
• Description: 16bit Codec With Built-in Alc And Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
(Ta=25 C; AVDD, DVDD, SVDD=2.6 3.6V, MVDD, HVDD=2.6 5.5V; fs=48kHz; De-emphasis = OFF,
ADC Digital Filter (LPF):
Passband (Note 28)
Stopband (Note 28)
Passband Ripple
Stopband Attenuation
Group Delay (Note 29)
Group Delay Distortion
ADC Digital Filter (HPF):
Frequency Response (Note 28)
DAC Digital Filter:
Passband (Note 28)
Stopband (Note 28)
Passband Ripple
Stopband Attenuation
Group Delay (Note 29)
DAC Digital Filter + Analog Filter: (Note 30)
Frequency Response
Note 28. The passband and stopband frequencies scale with fs (system sampling rate).
Note 29. The calculated delay time caused by digital filtering. This time is from the input of an analog signal to setting the
Note 30. DAC à LOUT1/ROUT1, LOUT2/ROUT2
MS0140-E-01
Digital EQ/HPF/LPF = OFF)
For example, ADC is PB=0.454*fs (@-1.0dB), DAC is PB=0.454*fs (@-0.1dB).
16bit data of both channels to the output register of the ADC and includes the group delay of the HPF.
For DAC, this time is from setting the 16bit data of both channels on input register to the output of analog signal.
Parameter
0 20.0kHz
-1.0dB
-3.0dB
-3.0dB
-0.56dB
-0.15dB
-6.0dB
0.1dB
0.1dB
FILTER CHARACTERISTICS
Symbol
GD
GD
PB
SB
PR
SA
FR
PB
SB
PR
SA
FR
GD
- 10 -
29.4
26.2
min
65
43
0
0
-
-
-
-
-
-
-
-
21.8
23.0
19.0
24.0
15.8
typ
3.7
10
20
0.5
0
max
18.9
21.7
0.06
0.1
-
-
-
-
-
-
-
-
[AK4564]
Units
kHz
kHz
kHz
kHz
kHz
kHz
kHz
1/fs
1/fs
2002/07
dB
dB
Hz
Hz
Hz
dB
dB
dB
s