AKD4424-SA Datasheet, PDF (3/22 Pages) Asahi Kasei Microsystems – AK4424 Evaluation Board Rev.1

[AKD4424-SA]





Operation sequence
1) Set up the power supply lines.
Each supply line should be distributed from the power supply unit.
Name
of jack
VDD1
Color
of jack
Red
Typ
Voltage
+5V
Voltage
Range
+4.5∼+5.5V
Using
VDD of AK4424
Default Setting
Connected to +5V
CVDD1
Red
+5V
+4.5∼+5.5V CVDD of AK4424
Connected to +5V
VCC1
AGND2
REG
Red
Black
Red
+3.3V
+12V
(Note 1)
0V
+12V
(Note 2)
+3.0∼+3.6V
+5.8V~+20V
0V
AVDD, DVDD, TVDD, OVDD
of AK4115 and VCC of Logic
circuit
Regulator: T2: +12V +3.3V
(AVDD, DVDD, TVDD, OVDD
of AK4115 and VCC of Logic
circuit)
Ground
+7V~+25V Regulator: T1: +12V +5V
(VDD, CVDD of AK4424)
Table 1.Set up of power supply lines
Connected to +3.3V
Connected to GND
(Should be connected)
Open
(Not connected)
Note 1 ) Use regulator: T2 can supply AK4115 with clear voltageɿ



R36: Short (0Њ) Open; R34,R35:Open Short (0Њ); Connect to VCC with 12V power supply.
Note 2 ) Use regulator: T1 can supply AK4424 with clear voltageɿ



R25,R44: Short (0Њ) Open; R37,R43:Open Short (0Њ); VDD, CVDD should be open. Connect to REG with
12V power supply.
2) DIP Switch setting:
Refer to Table 2 and Table 3
3) Power Down:
The AK4115 should be reset once by bringing SW2 (AK4115 PDN) “L” upon power-up.
Evaluation mode
1. Using DIR (Optical Link)
The DIR generates MCLK, BICK, LRCK and SDATA from the received data through optical connector (PORT1:
TORX141). It is possible to evaluate the AK4424 by using CD disk.
Setting: R19: Open 470Ω; R33: short (0Ω) Open
2. Using DIR (COAX) (Default)
The DIR generates MCLK, BICK, LRCK and SDATA from the received data through BNC connector (J3). It is
possible to evaluate the AK4424 by using CD disk.
Setting: R19: Open;
R33: short (0Ω); (Default)
ˎ COAX is recommended for an evaluation of the Sound quality.
3. Supply all interface signals that includ master clock via PORT2 from external equipments..
Setting:
R11: 5.1Ω Open
R12, R13, R14: 51Ω Open
R15, R16, R17, R18: Open 51Ω or short (0Ω)
Note) The above work of removing (open) or shorting resistors need to modify the connection by soldering.
KM092501





2008/03