AK4646EZ Datasheet, PDF (33/78 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/SPK-AMP

[AK4646EZ]
Mode
Recording Mode
Playback Mode
Loop Through
Mode
PMADL
bit
1
1
0
0
x
1
1
0
PMADR
bit
1
0
1
0
x
1
0
1
PMDAC
bit
x
x
x
1
1
1
1
1
DAFIL
bit
0
0
0
0
1
0
0
0
LOOP
bit
0
0
0
0
0
1
1
1
Table 21. Recording Playback Mode
Figure 24 SW
SW1 SW2
1
0
1
0
1
0
0
1
0
1
1
1
1
1
1
1
Figure
Figure 25
Figure 26
Figure 27
(x: Don’t care)
LPF bit, HPF bit, FIL3 bit, EQ0 bit, EQ1 bit, EQ2 bit, EQ3 bit, EQ4 bit, EQ5 bit, ACL1 bit and ALC2 bit should be “0”
when selecting those modes.
ADC
2nd Order
HPF
1st Order
LPF
Stereo
Separation
Gain
Compensation
5 Band
EQ
DAC
SMUTE DATT
Figure 25. Path at Recording Mode (default)
ALC
(Volume)
ADC
1st Order
HPF
“0” Data
DAC
SMUTE DATT
ALC
(Volume)
5 Band
EQ
Gain
Compensation
Figure 26. Path at Playback Mode
Stereo
Separation
1st Order
LPF
1st Order
HPF
ADC
2nd Order
HPF
1st Order
LPF
Stereo
Separation
Gain
Compensation
5 Band
EQ
DAC
SMUTE DATT
Figure 27. Path at Loop Through Mode
ALC
(Volume)
MS0630-E-00
- 33 -
2007/06