ASAHI KASEI
[AKD5354]
<KM062600>
'00/06
- 1 -
GENERAL DESCRIPTION
AKD5354 is an evaluation board for the portable digital audio 20bit A/D converter, AK5354. The
AKD5354 includes the input circuit and also has a digital interface transmitter. Further, the AKD5354 can
evaluate direct interface with AKM's D/A converter evaluation board.
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Ordering guide
AKD5354
---
Evaluation board for AK5354
(Cable for connecting with printer port of IBM-AT,
compatible PC and control software are packed with this.)
FUNCTION
Compatible with 2 types of interface
- Direct interface with AKM's D/A converter evaluation boards
- On-board AK4353 as DIT which transmits optical output
BNC connector for an external clock input
LIN1/2
AK4353
Clock
Generator
VD
VA GND
RIN1/2
AK5354
(DIT)
Opt Out
10pin Header
D/A Data
ROM Data
Control
Data
10pin Header
Figure 1. AKD5354 Block Diagram
* Circuit diagram and PCB layout are attached at the end of this manual.
Evaluation board Rev.A for AK5354
AKD5354
ASAHI KASEI
[AKD5354]
<KM062600>
'00/06
- 2 -
1. Evaluation Board Manual
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Input circuit & Set-up jumper pin for Input circuits
(1) LINE Block
(a) LIN1,2/RIN1,2 Input circuit
RIN1
RIN2
LIN2
LIN1
J1
LIN
R1
560
+
C1
10u
J2
RIN
R3
560
+
C3
10u
JP1
LIN
JP2
RIN
LIN1
LIN2
RIN1
RIN2
Figure 2. LIN1,2/RIN1,2 Input circuit on board
1. Analog signal is input to LIN1 and RIN1 pins via J1 and J2 connectors.
JP1
LIN
LIN2
LIN1
JP2
RIN
RIN2
RIN1
2. Analog signal is input to LIN2 and RIN2 pins via J1 and J2 connectors.
JP1
LIN
LIN2
LIN1
JP2
RIN
RIN2
RIN1
(2) Other Jumper pins
1. JP3 (VD) : VD of AK5354
VA : Supplied from "VA" connector via 10
.
VD : Supplied from "D2V" connector.
2. JP4 (GND) : Analog ground and Digital ground
open : separated
short : common (The connector "DGND" can be open.)
* AKM assumes no responsibility for the trouble when using the circuit examples.
ASAHI KASEI
[AKD5354]
<KM062600>
'00/06
- 3 -
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Operation sequence
1) Set up the power supply lines.
[VA]
(orange)
= 2.2
3.3V : for VA of AK5354 (typ. 2.5V)
[D2V]
(orange)
= 1.8
3.3V : for D2V of 74LVC541 (typ. 2.5V)
[VCC]
(red)
= 3.6
5.0V : for logic
[AGND]
(black)
= 0V
: for analog ground (including VSS of AK5354)
[DGND]
(black)
= 0V
: for logic ground
Each supply line should be distributed from the power supply unit.
D2V and VA must be same voltage level.
2) Set up the evaluation mode, jumper pins and DIP switches.
(See the followings.)
Note : Evaluation mode of the AK5354 is fixed to I
2
S compatible on the board.
3) Power on.
The AK5354 and AK4353 should be reset once bringing SW1 = SW2 = "L" upon power-up.
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Evaluation mode
Applicable Evaluation Mode
(1) Evaluation of A/D using DIT (Optical Link)
(2) Evaluation of A/D using D/A converted data
(3) All interface signals including master clock are fed externally.
(1) Evaluation of A/D using DIT (Optical Link)
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 PORT3 (ROM). In case of using external
clock through a BNC connector (J3), select EXT on JP6 (CLK) and short JP5 (XTE) and open JP7 (EXT).
JP5
XTE
JP6
CLK
EXT
XTL
JP7
EXT
(2) Evaluation of A/D using D/A converted data
It is possible to make evaluation in the form of analog inputs and analog outputs by interfacing with various
AKM's D/A evaluation boards with PORT3 (ROM).
JP5
XTE
JP6
CLK
EXT
XTL
JP7
EXT
ASAHI KASEI
[AKD5354]
<KM062600>
'00/06
- 4 -
(3) All interface signals including master clock are fed externally.
Under the following set-up, all external signals needed for the AK5354 to operate could be fed through PORT3
(ROM).
JP5
XTE
JP6
CLK
EXT
XTL
JP7
EXT
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The function of the toggle SW
Upper-side is "H" and lower-side is "L".
[SW1] (PDN):
Resets the AK5354. Keep "H" during normal operation.
[SW2] (DIT):
Resets the AK4353. Keep "H" during normal operation.
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Serial Control
The AK5354 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect
PORT2(CTRL) with PC by 10-line flat cable packed with the AKD5354.
Take care of the direction of connector. There is a mark pin#1 to connector.
Connect
CSN
CCLK
CDTI
10pin Header
10pin
Connector
10 wire
flat cable
PC
AKD5354
Figure 3. Connect of 10-line flat cable
ASAHI KASEI
[AKD5354]
<KM062600>
'00/06
- 5 -
2. Control Software Manual
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Set-up of evaluation board and control software
1.
Set up the AKD5354 according to previous term.
2.
Connect IBM-AT compatible PC with AKD5354 by 10-line type flat cable (packed with AKD5354). Take care of the
direction of 10pin header. (This control software does not operate on Windows NT, therefore please operate it on
Windows95/98.)
3.
Insert the floppy-disk labeled "AKD5354 Control Program ver 1.0" into the floppy-disk drive.
4.
Access the floppy-disk drive and double-click the icon of "akd5354.exe" to set up the control program.
5.
Then please evaluate according to the follows.
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Explanation of each buttons
1.
[Port Setup] :
Set up the printer port.
2.
[Write default] :
Initialize the register of AK5354.
3.
[Function1] :
Dialog to write data by keyboard operation.
4.
[Function2] :
Dialog to evaluate IPGA.
5.
[Write] :
Dialog to write data by mouse operation.
Note : It is necessary to MCLK=256fs and I
2
S for audio data format in the beginning.
Because AK4353 is fixed to MCLK=256fs and I
2
S for audio data format.
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