ASAHI KASEI
[AKD5385B-A]
(2) Master Mode
(2-1) A/D evaluation using DIT function of AK4103A
PORT1 (DIT) is 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 PORT2 (DSP). In case of using
external clock through a BNC connector (J3), select EXT on JP8 (CLK) and short JP5 (XTE) and open JP10
(EXT).
JP3
JP4
JP5
JP8
JP10
LRCK
BICK
XTE
CLK
EXT
XTL EXT
Other jumper pins set up
1. JP1 (GND) : Analog ground and Digital ground
OPEN : Separated.
SHORT : Common. (The connector “DGND” can be open.) <Default>
2. JP2 (AVDD) : Select AVDD for AK5385B
AVDD : Supply from AVDD connector .
REG : Supply from regulator. <Default>
In this case, AVDD connector should be open.
3. JP6 (BCFS) : Select BICK frequency
256 : In case of MCLK=256fs/512fs <Default>
384 : In case of MCLK=128fs/384fs
4. JP7 (MCLK) : Supply MCLK frequency for 74HC4040
256 : In case of MCLK=128fs/256fs
512 : In case of MCLK=512fs <Default>
384/768 : In case of MCLK=384fs
5. JP9 (LRFS) : Select LRCK frequency
256 : In case of MCLK=256fs/512fs <Default>
384 : In case of MCLK=128fs/384fs
<KM080500>
-3-
2005/09