ak4644 AKM Semiconductor, Inc., ak4644 Datasheet - Page 80

• Manufacturer Part Number: ak4644
• Description: Stereo Codec With Mic/hp/rcv-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
MS0477-E-01
Power Supply
2.6 ∼ 3.6V
Line Out
Mono In
Line In
Notes:
- AVSS, DVSS and HVSS of the AK4644 should be distributed separately from the ground of external
- All digital input pins should not be left floating.
- When the AK4644 is EXT mode (PMPLL bit = “0”), a resistor and capacitor of VCOC pin is not needed.
- When the AK4644 is PLL mode (PMPLL bit = “1”), a resistor and capacitor of VCOC pin is shown in Table 5.
- When the AK4644 is used at master mode, LRCK and BICK pins are floating before M/S bit is changed to “1”.
controllers.
Therefore, 100kΩ around pull-up resistor should be connected to LRCK and BICK pins of the AK4644.
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
0.22u
0.22u
Headphone
- 80 -
AK4644EN
Top View
Cp
DVSS
DVDD
BICK
LRCK
SDTO
SDTI
CDTI
CCLK
16
15
14
13
12
11
10
9
Analog Ground
0.1u
Digital Ground
[AK4644]
DSP
2006/10
µP