ak4127 AKM Semiconductor, Inc., ak4127 Datasheet - Page 24

• Manufacturer Part Number: ak4127
• Description: 192khz / 24bit High Performance Asynchronous Src
• Manufacturer: AKM Semiconductor, Inc.

Note:
1. Grounding and Power Supply Decoupling
The AK4127 requires careful attention to power supply and grounding arrangements. Alternatively if AVDD and DVDD
are supplied separately, the power up sequence is not important. Decoupling capacitors should be as near to the AK4127 as
possible, with the small value ceramic capacitor being the nearest.
MS0593-E-01
• Input PORT: Slave Mode, IBICK lock mode (64fsi), 24bit MSB justified
• Output PORT: Master mode, 24bit MSB justified
• Dither = OFF
- AVSS and DVSS of the AK4127 must be distributed separately from the ground of external digital
- All digital input pins must not be left floating.
DSP, uP
devices (MPU, DSP etc.).
Reset
0.22μ
64fsi
fsi
470
Figure 20. Typical Connection Diagram (Master mode)
1.0n
10
11
12 IDIF2
13 PLL0
14 PLL1
15 UNLOCK
1
2
3
4
5
6
7
8
9
FILT
AVSS
PDN
SMUTE
DITHER
PLL2
ILRCK
IBICK
SDTI
IDIF0
IDIF1
AK4127
- 24 -
CMODE2
CMODE1
CMODE0
OMCLK
OLRCK
OBICK
IMCLK
ODIF1
ODIF0
OBIT1
OBIT0
DVDD
SDTO
AVDD
DVSS
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
0.1μ
0.1μ
64fso
128fso
fso
10μ
Supply
3.0 ~ 3.6V
DSP
[AK4127]
2007/07