AKD4641EN-A Datasheet, PDF (2/54 Pages) Asahi Kasei Microsystems – 16bit stereo CODEC with built-in Microphone-amplifier and 16bit Mono CODEC for Bluetooth Interface.

ASAHI KASEI
[AKD4641EN-A]
Evaluation Board Manual
„ Operation sequence
1) Set up the power supply lines.
1-1) When AVDD, BVDD, DVDD and VCC are supplied from the regulator. (AVDD, BVDD, DVDD and VCC
jack should be open.). See “Other jumper pins set up (page 9)”. <default>
[REG] (red)
[AVDD] (orange)
[BVDD] (orange)
[DVDD] (orange)
[VCC] (orange)
[H/SVDD] (orange)
[AGND] (black)
[DGND] (black)
= 5V
= open
= open
= open
= open
= 3.3V
= 0V
= 0V
: 3.3V is supplied to AVDD of AK4641 from regulator.
: 3.3V is supplied to BVDD of AK4641 from regulator.
: 3.3V is supplied to DVDD of AK4641 from regulator.
: 3.3V is supplied to logic block from regulator.
: for MAX4410 and LM4889 logic (typ.3.3V)
: for analog ground
: for logic ground
1-2) When AVDD, BVDD, DVDD and VCC are not supplied from the regulator. (AVDD, BVDD, DVDD and
VCC jack should be open). See “Other jumper pins set up (page 9)”.
[REG] (red)
[AVDD] (orange)
[BVDD] (orange)
[DVDD] (orange)
[VCC] (orange)
[H/SVDD] (orange)
[AGND] (black)
[DGND] (black)
= “REG” jack should be open.
= 2.6 ∼ 3.6V : for AVDD of AK4641 (typ. 3.3V)
= 2.6 ∼ 3.6V : for BVDD of AK4641 (typ. 3.3V)
= 2.6 ∼ 3.6V : for DVDD of AK4641 (typ. 3.3V)
= 2.6 ∼ 3.6V : for logic (typ. 3.3V)
= 2.6 ∼ 3.6V : for MAX4410 and LM4889 logic (typ.3.3V)
= 0V
: for analog ground
= 0V
: for logic ground
Each supply line should be distributed from the power supply unit.
DVDD and VCC must be same voltage level.
2) Set up the evaluation mode, jumper pins and DIP switches. (See the followings.)
3) Power on.
The AK4641 and AK4114 should be reset once bringing SW1, 2 “L” upon power-up.
„ Evaluation mode
1. Evaluation of 16bit stereo CODEC
In case of AK4641 evaluation using AK4114, it is necessary to correspond to audio interface format for
AK4641 and AK4114. About AK4641’s audio interface format, refer to datasheet of AK4641. About
AK4114’s audio interface format, refer to Table 2 in this manual.
(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 (ADC → DAC) using 16bit Mono CODEC <default>
(1-4) All interface signals including master clock are fed externally.
<KM082001>
-2-
2006/03