AKD4122A-A Datasheet, PDF (2/37 Pages) Asahi Kasei Microsystems – Evaluation board Rev.0 for AK4122A

[AKD4122A-A]
Evaluation Board Manual
„ Operation sequence
1) Set up the power supply lines.
[AVDD] (red)
= 3.0 ∼ 3.6V (typ. 3.3V, AVDD pin)
[DVDD] (red)
= 3.0 ∼ 3.6V (typ. 3.3V, DVDD pin)
[+5V]
(orange) = +5V (for regulator)
[VCC]
(blue)
= 3.0 ∼ 3.6V (typ. 3.3V, for digital logic)
[AGND] (black)
= 0V
[DGND] (black)
= 0V
Each supply line should be distributed from the power supply unit.
2) Set up the evaluation mode, jumper pins. (See the followings.)
3) Power on.
The AK4122A should be reset once bringing SW6 (PDN) “L” upon power-up.
„ Evaluation mode
I/O ports and jumper pins on the board should be set according to the following explanation in order to evaluate each
pass of the AK4122A. The block diagram is shown in Figure 2.
MCKO
INT0 INT1 INT2 R FILT
RX1
RX2
RX3
RX4
BICK1
LRCK1
SDTI
BICK2
LRCK2
SDTIO
MCLK2
RX1
RX2
RX3
RX4
BICK1
LRCK1
SDTI
IPS1-0
PORT1
Serial
Audio
I/F
DIR
ISEL1-0
BICK2
LRCK2
SDTIO
PORT2
Serial
Audio
I/F
OPS1-0
TX
De-em
Filter
PLL
SRC
BYPS
OSEL
PORT3
Serial
Audio
I/F
LRCK
BICK
SDTO
Control Register
TX
PDN
SMUTE
LRCK
BICK
SDTO
OMCLK
M/S2
M/S3
MCKE
AVDD AVSS DVDD DVSS
CDTO CDTI CCLK CSN
Figure 2. AK4122A Block Diagram
<KM099400>
-2-
2009/03