ak4368 AKM Semiconductor, Inc., ak4368 Datasheet - Page 33

• Manufacturer Part Number: ak4368
• Description: Dac With Built-in Pll & Hp-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
AK4368 features a 3D stereo enhancement function. 3D1-0 bits control the power management of the 3D function block
(Table 25), and DP1-0 bits set the 3D depth (Table 26). 3D1-0 and MUTEN bits should not be changed to avoid pop noise
for 50ms after 3D1-0 bits are changed.
4.7nF±20% and 470nF±20% capacitors should be connected at 3DCAP1, 3DCAP2 and 3DCAP3 pins as shown in Figure
25. The load capacitance at 3DCAP1, 3DCAP2 and 3DCAP3 pins should be 20pF(max), respectively.
MS0529-E-00
3D Stereo Enhancement
3D1 bit
0
0
1
1
3D0 bit
0
1
0
1
3D Function
OFF
ON
ON
ON
DP1 bit
0
0
1
1
Table 25. 3D Function Power Management
Figure 25. 3D Function External Circuit
3DCAP1 pin
3DCAP2 pin
3DCAP3 pin
LOUT, ROUT, HPL, HPR
Table 26. 3D depth setting
3D Effect Output
LOUT, ROUT
DP0 bit
HPL, HPR
0
1
0
1
- 33 -
3D Depth
100%
50%
70%
470nF
0%
4.7nF
Headphone summation circuit
Headphone summation circuit
Lineout summation circuit
Default
Input Source
[AK4368EG]
Default
2006/07