AK4679EG Datasheet, PDF (117/220 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with DSP and MIC/RCV/HP/SPK/LINE-AMP

[AK4679]
HPTM1
bit
0
0
1
1
HPTM0
Zero Crossing Timeout Period
bit
8kHz
16kHz
44.1kHz
0
128/fs
16ms
8ms
2.9ms
1
256/fs
32ms
16ms
5.8ms
0
512/fs
64ms
32ms
11.6ms
1
1024/fs
128ms
64ms
23.2ms
Table 107. Headphone-Amp Volume Zero Crossing Timeout Period
(default)
CPMODE1 bit
0
0
1
1
CPMODE0 bit
Mode
Operation Voltage
0
Class-G Operation Mode Automatic Switching
1
± VDD Operation Mode
± VDD
0
±1/2 VDD Operation Mode
±1/2 VDD
1
N/A
Table 108. Charge Pump Mode Setting (N/A: Not available)
(default)
VDDTM2
bit
0
0
0
0
1
1
1
1
VDDTM1 VDDTM0
VDD Mode Holding Period
bit
bit
8kHz
16kHz 44.1kHz
0
0
1024/fs
128ms
64ms
23.2ms
0
1
2048/fs
256ms
128ms 46.4ms
1
0
4096/fs
512ms
256ms 92.9ms
1
1
8192/fs
1024ms
512ms
186ms
0
0
16384/fs 2048ms 1024ms 372ms
0
1
32768/fs 4096ms 2048ms 743ms
1
0
65536/fs 8192ms 4096ms 1486ms
1
1
N/A
Table 109. VDD Mode Waiting Period (N/A: Not available)
(default)
MS1402-E-06
- 117 -
2013/02