AKD4356 Datasheet, PDF (4/27 Pages) Asahi Kasei Microsystems – EVALUATION BOARD REV.B FOR AK4356

ASAHI KASEI
[AKD4356]
3) Using AKM’s evaluation board for ADC
To evaluate AK4356 with analog input, the AKM’s evaluation board for ADC can be used. MCLK, BICK and
LRCK are supplied from clock generator on the AKD4356, and analog signal is A/D converted and send to
AKD4356 through PORT3(AD/ROM). In case of using external master clock through a BNC connector, select
“BNC” on JP15(XTI) and short JP16(XTE).
JP4
LRCK
JP7
BICK
JP15
XTI
JP16
XTE
JP14
DIR
JP13
SDATA
ADC DIR ADC DIR
VD GND
4) Feeding all signals from external
Under the following set-up, all external signals can be fed through POTR3.
JP4
LRCK
JP7
BICK
JP15
XTI
JP16
XTE
JP14
DIR
JP13
SDATA
ADC DIR ADC DIR
VD GND
n BICK frequency
[JP9]:
When BICK is fed from 74HC4040 on board,
it’s frequency is selected with JP9.
128fs: BICK = 128fs
64fs: BICK = 64fs (Figure 3)
32fs: BICK = 32fs
JP9
X_BICK
128fs
64fs
32fs
Figure 3. BICK frequency
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