AKD5384_05 Datasheet, PDF (2/23 Pages) Asahi Kasei Microsystems – 24bit 96kHz 4ch A/D converter

ASAHI KASEI
[AKD5384]
„ Operation sequence
1) Set up the power supplies lines.
[AVDD] (red)
= 4.75 ∼ 5.25V : for AVDD of AK5384 (typ. 5.0V)
[DVDD] (red)
= 4.75 ∼ 5.25V : for DVDD of AK5384 (typ. 5.0V)
[TVDD] (orange) = 3.0 ∼ 5.25V : for TVDD of AK5384 (typ. 5.0V)
[+15V] (green) = +15V
: for Op-amp
[−15V] (blue) = −15V
: for Op-amp
[VCC] (red)
= 5V
: for logic
[AGND] (black) = 0V
: for analog ground
[DGND] (black) = 0V
: for logic ground
Each supply line should be distributed from the power supply unit.
2) Set up the evaluation mode, jumper pins and DIP switches. (See the followings.)
3) Power on.
The AK5384 and AK4101 should be reset once bringing SW1 = “L” upon power-up.
Note: When the AK5384 is TDM mode, the AK4101 does not support TDM mode. So, PORT1 (DIT1)
and PORT2 (DIT2) are not used. PORT3 (DSP) should be used.
„ Evaluation mode
(1) Slave Mode
(1-1) A/D evaluation using DIT function of AK4101
PORT1 (DIT1) and PORT2 (DIT2) are used. DIT generates audio bi-phase signal from received data and which
is output through optical connector (TOTX176). It is possible to connect AKM’s D/A converter evaluation
boards on the digital-amplifier, which equips DIR input. Nothing should be connected to PORT3 (DSP). In case
of using external clock through a BNC connector (J5), select EXT on JP8 (CLK) and short JP5 (XTE) and open
JP10 (EXT).
JP3
JP4
JP5
JP8
JP10
BICK
LRCK
XTE
CLK
EXT
XTL EXT
(1-2) Feeding all clocks from PORT3 (DSP)
Under the following set-up, all external clocks (MCLK, BICK, LRCK) can be fed through PORT3 (DSP). The
A/D converted data is output from SDTO1/SDTO2 of PORT3 (DSP). Also, the A/D converted data is output
through optical connector (TOTX176).
JP3
JP4
JP5
BICK
LRCK
XTE
JP8
JP10
CLK
EXT
XTL EXT
<KM070101>
-2-
2005/10