AKD4386_05 Datasheet, PDF (2/23 Pages) Asahi Kasei Microsystems – 96kHz D/A converter for portable audio and home audio systems

ASAHI KASEI
[AKD4386]
„ Operation sequence
1) Set up the power supply lines.
[VDD] (red) = 2.2 ∼ 3.6V (typ. 3.0V, for VDD pin)
[D3V] (red) = 2.2 ∼ 3.6V (typ. 3.0V, for 74LVC541)
[+5V] (orange) = 5V (for regulator)
[VCC] (red) = 3.3V (for digital logic)
[AGND] (black) = 0V
[DGND] (black) = 0V
Each supply line should be distributed from the power supply unit.
2) Set-up the evaluation modes, jumper pins and DIP switches (See the followings.)
3) Power on.
The AK4386 should be reset once bringing SW2 “L” upon power-up.
„ Evaluation mode
1) DIR (Optical Link) <Default>
The AK4112B (DIR) generates MCLK, BICK, LRCK and SDTI from the received data through PORT2
(TORX141: optical link). Used for the evaluation using CD test disk. Nothing should be connected to PORT1
(DSP).
JP5
MCLK
JP6
BICK
JP7
SDTI
JP8
LRCK
JP13
EXT
DIR EXT DIR EXT
DIR EXT
2) Using AKM’s evaluation board for ADC
To evaluate the AK4386 with analog input, the AKM’s evaluation board for ADC can be used. MCLK, BICK
and LRCK and A/D converted data are sent to the AKD4386 through PORT1 (DSP) via 10pin flat cable.
JP5
MCLK
JP6
BICK
JP7
SDTI
JP8
LRCK
JP13
EXT
DIR EXT DIR EXT
DIR EXT
3) Feeding all signals from external
Under the following set-up, all external signals can be fed through POTR1 (DSP).
JP5
MCLK
JP6
BICK
JP7
SDTI
JP8
LRCK
JP13
EXT
DIR EXT DIR EXT
DIR EXT
<KM072001>
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2005/10