AKD4145-A Datasheet, PDF (7/32 Pages) Asahi Kasei Microsystems – Evaluation board Rev.3 for AK4145

[AKD4145-A]
2. Evaluation using ADC of AK5357
Measurement path :
AINL(J3) / AINR (J2) → ADC (AK5357) → DIR (AK4114) → AK4145
Please supply analog signal to AINL (J3) / AINR (J2). DIR generates MCLK, BICK, LRCK, and SDTI from
received data via AK5357’s ADC. X’tal (12.288MHz) on the board is used as AK4114’s reference clock.
(2-1) Set up the jumper pins.
JP4 is setting of AK5357‘s Audio interface format. In case of the AK5357 evaluation using the AK4114, it is
necessary to correspond to the audio interface format for AK5357 (SDTO) and AK4114 (DAUX).
About AK5357’s audio interface format, refer to Table. 4 on this page. About AK4114’s audio interface
format, refer to Table. 6 on page 8.
(Note) AK5357’s default setting of Audio interface format is I²S Compatible.
JP6
JP9
JP10
JP11
JP12
JP4
RX
DIR-SDTI DIR-LRCK DIR-BICK DIR-MCLK
I2S
OPT BNC
JP4 I2S
Open
Short
24bit MSB Justified
I²S Compatible
<Default>
Table. 4 ADC Output Audio Interface Format Setting
(2-2) Set up the DIP SW (S2).
In case of the AK4145 evaluation using the AK4114, it is necessary to correspond to the audio interface format
for AK4145 (SDTI) and AK4114 (SDTO). About AK4145’s audio interface format, refer to datasheet of
AK4145. About AK4114’s audio interface format, refer to Table. 6 on page 8.
(Note) AK4145’s default setting of Audio interface format is I²S Compatible in parallel mode.
S2 ^DIR-Setting
H
L _{DIF0 DIF1 DIF2 OCKS1 CM0}
3. All interface signals are fed externally
Measurement path :
PORT2 → AK4145
Please supply MCLK, BICK, LRCK and SDTI to PORT2.
(3-1) Set up the jumper pins.
JP9
JP10
JP11
JP12
DIR-SDTI DIR-LRCK DIR-BICK DIR-MCLK
<KM090003>
-7-
2008/08