AK4343EN AKM [Asahi Kasei Microsystems], AK4343EN Datasheet - Page 81

• Manufacturer Part Number: AK4343EN
• Description: Stereo DAC with HP/RCV/SPK-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
Figure 72 and Figure 73 shows the system connection diagram for the AK4343. An evaluation board [AKD4343] is
available which demonstrates the optimum layout, power supply arrangements and measurement results.
MS0478-E-01
Power Supply
2.6 ∼ 3.6V
Line Out
Mono In
Line In
Notes:
- AVSS, DVSS and HVSS of the AK4343 should be distributed separately from the ground of external
- All digital input pins should not be left floating.
- When the AK4343 is EXT mode (PMPLL bit = “0”), a resistor and capacitor of VCOC pin is not needed.
- When the AK4343 is PLL mode (PMPLL bit = “1”), a resistor and capacitor of VCOC pin is shown in Table 5.
- When piezo speaker is used, 2.6 ∼ 5.25V power should be supplied to HVDD and 10Ω or more series resistors
- When the AK4343 is used at master mode, LRCK and BICK pins are floating before M/S bit is changed to “1”.
controllers.
should be connected to both SPP and SPN pins, respectively.
Therefore, 100kΩ around pull-up resistor should be connected to LRCK and BICK pins of the AK4343.
10u
Figure 72. Typical Connection Diagram (AIN3 bit = “0”, Line Input)
200
200
1u
1u
1u
25
26
27
28
29
30
31
32
10
10
MUTET
ROUT
LOUT
MIN
RIN2
LIN2
LIN1
RIN1
SYSTEM DESIGN
0.22u
0.22u
Headphone
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AK4343EN
Top View
Cp
Speaker
ZD1
ZD2
Dynamic SPK
Piezo SPK
DVSS
DVDD
BICK
LRCK
NC
SDTI
CDTI
CCLK
R1, R2: Short
ZD1, ZD2: Open
R1, R2: ≥10Ω
ZD1, ZD2: Required
16
15
14
13
12
11
10
9
Analog Ground
0.1u
Digital Ground
[AK4343]
DSP
2006/10
µP