AK4128A Datasheet, PDF (45/50 Pages) Asahi Kasei Microsystems – 8ch 216kHz / 24-Bit Asynchronous SRC

• Serial Control Mode (SPB pin = “H”).
•Asynchronous Inputs Mode (INAS pin = “H”).
• OMCLK/XTI Input= 256FSO, X’tal
• Input PORT: Slave mode, IBICK1~4 lock mode (64FSI)
Input Audio Interface Format can be set by registers.
• Output PORT: Master mode, 24 bit MSB justified.
• Dither = OFF, De-emphasis filter can be set by registers. PM2/1 pin= “H/L” (8ch mode)
C1= 0.1μF
C2=10μF
C3=1μF± 30%
3.3V
[AK4128A]
DSP2
DSP1
DSP3
DSP4
+
C2
C1
C
C
+
C2
C3
C1
+
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
1 IBICK2
FSI
64FSI
2 IMCLK
3 ILRCK1
4 IBICK1
5 DVDD1
C1
6 VSS2
7 SDTI4
8 SDTI1
9 SDTI2
10 SDTI3
11 IDIF0
12 IDIF1
13 IDIF2
14 ILRCK3
15 IBICK3
16 ILRCK4
Top View
XTO 48
XTI/OMCLK 47
OLRCK 46
OBICK 45
DVDD3 44
FSO
64FSO
C1
VSS4 43
SDTO4 42
SDTO1 41
SDTO2 40
SDTO3 39
ODIF0 38
ODIF1 37
CM0 36
CM1 35
CM2 34
TDM 33
DSP5
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
C1
+
C2
uP
Notes:
- All digital input pins should be not left floating.
- VSS1 -5 must be connected to the same ground plane.
- DVDD1-4 pins must be connected to the same power supply.
- Connect a 1μF (± 30%; including temperature characteristics) capacitor between the VD18 pin and DVSS. When
this capacitor is polarized, the positive polarity pin should be connected to the VD18 pin.
- Refer to Table 5 for the equivalent series resistance R1 and capacitance C values of the X’tal oscillator.
Figure 49. Typical Connection Diagram (Serial Control Mode)
MS1242-E-00
- 45 -
2010/09