ak4527b AKM Semiconductor, Inc., ak4527b Datasheet - Page 9

• Manufacturer Part Number: ak4527b
• Description: High Performance Multi-channel Audio Codec
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
(Ta=25 C; AVDD, DVDD=4.5 5.5V; TVDD=2.7 5.5V; fs=44.1kHz; DEM=OFF)
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:
Notes: 16. The passband and stopband frequencies scale with fs.
MS0056-E-00
17. The calculating delay time which occurred by digital filtering. This time is from setting the input of analog
18. fs=96kHz.
For DAC, this time is from setting the 20/24bit data of both channels on input register to the output of analog
For example, 20.02kHz at –0.02dB is 0.454 x fs. The reference frequency of these responses is 1kHz.
signal to setting the 24bit data of both channels to the output register for ADC.
signal.
0
(Note 17)
(Note 17)
(Note 16)
(Note 16)
(Note 16)
40.0kHz
20.0kHz
-3dB
-0.5dB
-0.1dB
-0.1dB
-6.0dB
-0.02dB
-0.06dB
-6.0dB
-0.005dB
(Note 18)
FILTER CHARACTERISTICS
Symbol
GD
GD
SA
PB
SB
PR
SA
FR
PB
SB
PR
FR
FR
- 9 -
GD
24.34
24.2
min
56
80
0
0
-
-
-
-
20.02
20.20
22.05
22.05
21.9
27.6
typ
0.9
2.7
6.0
0.2
0.3
0
19.76
max
20.0
0.005
0.02
-
-
-
-
[AK4527B]
Units
2000/10
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
1/fs
1/fs
dB
dB
Hz
Hz
Hz
dB
dB
dB
dB
µs