AKD4537 Datasheet, PDF (2/32 Pages) Asahi Kasei Microsystems – Evaluation board Rev.B for AK4537

ASAHI KASEI
[AKD4537]
1. Evaluation Board Manual
n Operation sequence
1) Set up the power supply lines.
[VCC] (red) = 5.0V
[AGND] (black) = 0V
[DGND] (black) = 0V
: for logic
: for analog ground
: for logic ground
Each supply line should be distributed from the power supply unit.
3.3V is supplied to AK4537 and AK4114 via the regulator.
2) Set up the evaluation mode, jumper pins. (See the followings.)
3) Power on.
The AK4537 and AK4114 should be reset once bringing SW2 “L” upon power-up.
n Evaluation mode
(1) Slave mode
(1-1) Evaluation of Recording block (MIC, ADC) using DIT of AK4114
(1-2) Evaluation of Playback block (HP, SPK, MOUT+) using DIR of AK4114
(1-3) Evaluation of Loop-back using AK4114
(1-4) All interface signals including master clock are fed externally.
AK4114’s audio interface format is fixed to I²S compatible.
AK4114 does not operate under fs = 32kHz, this mode corresponds to fs = 32kHz or more.
(1-1) Evaluation of Recording block (MIC, ADC) using DIT of AK4114
PORT2 (DIT) and X1 (X’tal) are used. DIT generates audio bi-phase signal from received data and which is
output through optical connector (TOTX176). Nothing should be connected to PORT1 (DIR) and PORT3
(ROM).
JP5
BICK2
JP6
LRCK2
JP7
LRCK
JP8
MCLK
JP9
BICK
JP10
SDTI
DIR ADC
(1-2) Evaluation of Playback block (HP, SPK, MOUT+) using DIR of AK4114
PORT1 (DIR) is used. Nothing should be connected to PORT3 (ROM).
JP5
BICK2
JP6
LRCK2
JP7
LRCK
JP8
MCLK
JP9
BICK
JP10
SDTI
DIR ADC
<KM069501>
-2-
2002/11