AK4679EG Datasheet, PDF (135/220 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with DSP and MIC/RCV/HP/SPK/LINE-AMP

[AK4679]
■ Output Selector of Port#1, Port#2 and Port#3
The AK4679 has output selectors. After releasing hardware suspend, LPDO1/2 bits control signal path of SDOUT1/2
respectively. On both hardware reset and suspend states, Port#1 input/output are bypassed to Port#2 output/input
respectively. The output pin selection of the Por#3 is done by LPDO3 and 4 bits. Each output pin has an output enable
switch. (OUTxN bit x = 1, 2, 3, 4)
SDIN2
SDOUT2
SYNC2
BCLK2
LPDO2 bit
1
0
0 SYNC1
1 _SYNC3
PT2N bit SELPT bit
0 BCLK1
1 _BCLK3
FS[3:0] bits
PCM I/F Port #2
Up-down
Sample
converter
(8k←→16k
DIN2
DOUT2
AKM
DSP
Core
SYNC1
BCLK1
SDIN1
SDOUT1
PCM I/F Port #1
LPDO1 bit
0
1
DIN1
DOUT1
SDIN3
SDOUT3
SDIN4
SDOUT4
SYNC3
BCLK3
PCM I/F Port #3
LPDO3 bit
1
0
LPDO4 bit
0
1
DIN3
DOUT3
DIN4
DOUT4
Figure 109. Output Selector of Port#1, Port#2 and Port#3 (Red: hardware reset)
MS1402-E-06
- 135 -
2013/02