AKD5394A Datasheet, PDF (3/32 Pages) Asahi Kasei Microsystems – 24bit A/D converter for professional audio

ASAHI KASEI
[AKD5394A]
„ Evaluation mode
1) Use DIT (Optical connector or BNC connector) <default>
2) Use AKM’s D/A evaluation board
3) Receive interface signal : MCLK, SCLK(BICK), LRCK from external source
1) Use DIT (Optical connector or BNC connector) <default>
PORT2(TOTX176) or J5(TX) are used. It is able to send A/D converted data through optical connector or
BNC connector. And it is able to connect to AKM’s D/A evaluation board and digital amp. When MCLK is
received from external source through BNC connector (J6), JP2(CLK) should be connected to “BNC” side,
and JP16(XTE) should be short. The setting of JP7, JP9, JP11, JP12 and JP13 should be adjusted to the
AK5394A’s conditions(clock ratio, data format, etc).(Refer to setting of jumper pin.)
JP2
CLK
X’tal
BNC
JP11
BICK
12.288M
6.144M
3.072M
JP13
LRCK1
HC74
74HC4040
Figure2. Setting of jumper pin (Use DIT) <default>
2) Use AKM’s D/A evaluation board
It is able to evaluate AKM’s D/A evaluation board connecting to PORT3(EXT) via 10pin flat cable. When
MCLK, SCLK(BICK) and LRCK are sent to a D/A board, setting of jumper pin is the same as “1)”. When
MCLK, SCLK(BICK) and LRCK are received from a D/A board, setting of jumper pin is the same as “3)”.
JP2
CLK
X’tal
BNC
JP11
BICK
12.288M
6.144M
3.072M
JP13
LRCK1
HC74
74HC4040
Figure3. Setting of jumper pin (Use AKM’s D/A evaluation board)
3) Receive interface signal : MCLK, SCLK(BICK), LRCK from external source
PORT3(EXT) is used. JP11 and 12 should be open. The setting of JP7 and JP9 should be adjusted to the
AK5394A’s conditions(clock ratio, data format, etc).(Refer to setting of jumper pin.)
JP2
CLK
X’tal
BNC
JP11
BICK
12.288M
6.144M
3.072M
JP13
LRCK1
HC74
74HC4040
Figure4. Setting of jumper pin (Receive interface signal)
< KM064804>
-3-
2005/05