AK4695 Datasheet, PDF (33/107 Pages) Asahi Kasei Microsystems – 24bit 4ch CODEC with MIC/HP/SPK/LINE-AMP

[AK4695]
Mode
PFSEL bit
DASEL1-0
bits
PFSDO bit
Recording Mode 1 & Playback Mode 2
0
00
1
Recording Mode 2 & Playback Mode 1
1
01
1
Recording Mode 2 & Playback Mode 2
(Programmable Filter Bypass Mode:
X
00
0
PMDSP bit = “0”)
Loopback Mode
0
01 or 10
1
Table 19. Recording Playback Mode (x: Don’t care)
DRCENA bit
DRCENB bit
0
0
1
0
Figure
Figure 24
Figure 25
Figure 26
Figure 27
HPF10-3, HPF20-3, LPF10-3, EQ10-3, EQ20-3 and ALC0-3 bits must be “0” when changing those modes.
ADCA/B
1st Order
HPFA/B
MIC Gain
Adjust
1st Order
HPF1
1st Order
HPF2
1st Order
LPF1
2 Band
EQ
ALC
(Volume)
SMUTE
DACA/B
SMUTEA/B DVLA/B
Figure 24. Path at Recording Mode 1 & Playback Mode 2 (default)
ADCA/B
1st Order
HPFA/B
MIC Gain
Adjust
DACA/B
SMUTEA/B DVLA/B
SMUTE
ALC
(Volume)
2 Band
EQ
1st Order
LPF1
1st Order
HPF2
Figure 25. Path at Recording Mode 2 & Playback Mode 1
1st Order
HPF1
ADCA/B
1st Order
HPFA/B
MIC Gain
Adjust
ADCA/B
DACA/B _{SMUTEA/B DVLA/B}
DRC
Figure 26. Path at Recording Mode 2 & Playback Mode 2
1st Order
HPFA/B
MIC Gain
Adjust
1st Order
HPF1
1st Order
HPF2
1st Order
LPF1
2 Band
EQ
ALC
(Volume)
SMUTE
DACA/B
SMUTEA/B
DVLA/B
Figure 27. Path at Loopback Mode
MS1463-E-01
- 33 -
2014/12