AKD4343-B Datasheet, PDF (2/32 Pages) Asahi Kasei Microsystems – Stereo DAC with built-in HP/RCV/SPK amplifier

ASAHI KASEI
[AKD4343-B]
Evaluation Board Manual
„ Operation sequence
1) Set up the power supply lines.
[VCC] (red) = 5.0V (or 3.3V)
[AGND] (black) = 0V
[DGND] (black) = 0V
Each supply line should be distributed from the power supply unit.
When the power is supplied to the AK4343 via the regulator, JP21 should be set to “REG” side and VCC
should be 5.0V.<default> (When the power is supplied from VCC jack to the AK4343 directly, JP21 should
be set to “VCC” side and VCC should be 3.3V.)
2) Set up the evaluation mode, jumper pins. (See the followings.)
3) Power on.
The AK4343 and AK4114 should be reset once bringing SW1 “L” upon power-up.
And the AK7830 should be reset once bringing SW2(SPK_PDN) “L” upon power-up.
„ Evaluation mode
(1) Slave mode
(1-1) Evaluation of Playback block (HP, SPK, LOUT) using DIR of AK4114 <Default>
(1-2) All interface signals including master clock are fed externally.
The AK4114’s audio interface format is fixed to LJ compatible.
(1-1) Evaluation of Playback block using DIR of AK4114
PORT1 (DIR) is used. Nothing should be connected to PORT3 (DSP).
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
MCLK
JP10
BICK
JP11
SDTI
DIR ADC
The AK4114 operates at fs of 32kHz or more. If the fs is slower than 32kHz,
any other evaluation mode without using DIR should be used.
<KM083800>
-2-
2006/04