ASAHI KASEI
[AK4556]
VA
VSS
∆Σ
Modulator
∆Σ
Modulator
VD
Decimation
Filter
Decimation
Filter
PDN
Clock
Divider
MCLK
LRCK
BCLK
SDTO
SDTI
CKS3
CKS2
CKS1
CKS0
8X
Interpolator
DEM0
DEM1
LIN
RIN
VCOM
Common Voltage
∆Σ
Modulator
∆Σ
Modulator
8X
Interpolator
Serial I/O
Interface
LOUT
LPF
ROUT
LPF
Figure 1. Block Diagram
Compatibility with the AK4552
1. Function
Function
fs (max)
HFP Cut-off
HPF Disable
ADC
Input Level
Input Resistance
Init Cycle
S/(N+D)
DR, S/N
DF
SA
SB
GD
DAC
Output Level
Road Resistance
S/(N+D)
DR, S/N
DF
SA
GD
MCLK (Slave)
AK4552
100kHz
3.7Hz @ fs = 48kHz
No
0.617 x VA
34kΩ @ fs = 44.1kHz, 24kΩ @ fs = 96kHz
2081/fs
89dB
97dB
65dB
29.4kHz
17/fs
0.583 x VA
10kΩ
88dB
100dB
43dB
15.4/fs
256/384/512/768fs @ Normal Speed mode
256/384fs @ Double Speed Mode
128/192fs @ Double Speed Monitor
64/96/128/192fs @ Quad Speed Monitor
Yes (Double / Quad)
Slave
24bit MSB justified
24bit LSB justified
14mA
2.4V to 4.0V
16TSSOP
(5.0mm x 6.4mm, 0.65mm Pitch)
AK4556
216kHz
1Hz @ fs = 48kHz
Yes
0.7 x VA
8kΩ@ fs = 48kHz, 96kHz, 192kHz
4134/fs @ Normal Speed, Slave mode
91dB
103dB
68dB
28kHz
18/fs
0.7 x VA
5kΩ
90dB
106dB
54dB
21/fs
256/384/512/768fs @ Normal Speed
256/384fs @ Double Speed
128/192fs @ Quad Speed
No
Master / Slave
24bit MSB justified / I
2
S
24bit MSB justified /24bit LSB justified / I
2
S
27.5mA
2.4V to 3.6V (Normal/Double Speed)
2.7V to 3.6V (Quad Speed)
20TSSOP
(6.5mm x 6.4mm, 0.65mm Pitch)
Monitor Mode
M/S mode
Audio I/F
ADC
DAC
Idd (Vdd = 3V)
VDD
Package
MS0559-E-00
-2-
2006/11
AKM [ ASAHI KASEI MICROSYSTEMS ]
