AKD4665A-A Datasheet, PDF (2/39 Pages) Asahi Kasei Microsystems – 20bit CODEC with built-in Input PGA and Headphone Amplifier

ASAHI KASEI
[AKD4665A-A]
Evaluation Board Manual
„ Operation sequence
1) Set up the power supply lines.
1-1) When AVDD, DVDD, HVDD, TVDD and LVC are supplied from the regulator. (AVDD, DVDD, HVDD,
TVDD and LVC_IN jack should be open.). See “Other jumper pins set up (page 5)”. <default>
[REG] (red )
[HVDD] (orange)
[AVDD] (orange)
[DVDD] (orange)
[TVDD] (blue)
[LVC_IN] (blue)
[VD_IN] (orenge)
[AGND] (black)
[DGND] (black)
= 5V
= open
: 3V is supplied to HVDD of AK4665A from regulator.
= open
: 3V is supplied to AVDD of AK4665A from regulator.
= open
: 3V is supplied to DVDD of AK4665A from regulator.
= open
: 3V is supplied to TVDD of AK4665A from regulator.
= open
: 3V is supplied to logic block of LVC from regulator.
= 2.7 ∼ 3.6V : for other logic (typ. 3V)
= 0V
: for analog ground
= 0V
: for logic ground
1-2) When AVDD, DVDD, HVDD, TVDD and LVC are not supplied from the regulator. (AVDD, DVDD,
HVDD, TVDD and LVC jack should be junction.) See “Other jumper pins set up (page 5)”.
[REG] (red)
[HVDD] (orange)
[AVDD] (orange)
[DVDD] (orange)
[TVDD] (blue)
[LVC_IN] (blue)
[VD_IN] (orenge)
[AGND] (black)
[DGND] (black)
= “REG” jack and JP2 should be open.
= 2.6 ∼ 3.6V : for HVDD of AK4665A (typ. 3V)
= 2.6 ∼ 3.6V : for AVDD of AK4665A (typ. 3V)
= 2.6 ∼ 3.6V : for DVDD of AK4665A (typ. 3V)
= 1.6 ∼ 3.6V : for TVDD of AK4665A (typ. 3V)
= 1.65 ∼ 5.5V: for logic block of LVC (typ. 3V)
= 2.7 ∼ 3.6V : for other logic (typ. 3V)
= 0V
: for analog ground
= 0V
: for logic ground
Each supply line should be distributed from the power supply unit.
AVDD and DVDD each must be same voltage level, and TVDD and LVC_IN each too.
2) Set up the evaluation mode, jumper pins and DIP switches. (See the followings.)
3) Power on.
The AK4665A and AK4114 should be reset once bringing SW1, 2 “L” upon power-up.
„ Evaluation mode
In case of AK4665A evaluation using AK4114, same audio interface format should be set for both AK4665A
and AK4114. About AK4665A’s audio interface format, refer to datasheet of AK4665A. About AK4114’s
audio interface format, refer to Table 2 in this manual.
Applicable Evaluation Mode
(1) Evaluation of loop-back mode (Default)
(2) Evaluation of using DIR of AK4114 (opt-connector)
(3) Evaluation of using DIT of AK4114 (opt-connector)
(4) All interface signals including master clock are fed externally.
<KM082201>
-2-
2006/05