[AK4753]
4. 4-channels mode (SPC1-0 bits = “11”: SW2 = “0”, SW3= “0”, SW4= “1”, SW5= “1”, SW6= “1”)
Table 23 shows the signal status and output condition when SPC1-0 bits = “11”. This output configuration is suitable
for a Two-Way Speaker System.
L1(Hi), L2(Lo), R1 (Hi) and R2 (Lo) is an example of the DSP setting. L1(Hi), R1(Hi) are signals which were after
HPF in DSP1. L2(Lo) and R2(Lo) are signals which were after LPF in DSP2. Refer to the Figure 55 for functions and
signal paths of the DSP block.
SEL1-0 bit
SPC1-0 bit
0: L1, R1,
L1
DAC1L
ANA
+
SW2, 3, 4, 5, 6
L, R
SW3
0
DSP1
for L1, R1
L1, R1
DAC1
Digital-in
DIG
SW5
1
SW1
−
HPF, LPF
EQ, Limiter
DAC1R
ANA
R1
DATT
SW4
1
L2
DSP2
for L2, R2
+
DAC2L
ANA
ADC
SW2
0
DAC2
DIG
HPF, LPF
EQ, Limiter
MIX
SW6
1
L2, R2
−
R2
DAC2R
ANA
0: L, R
Figure 53. Block Diagram for Signal Path (SPC1-0 bits = “11”)
Output Setting
Signal and Output Block
Singnal
SPC1 bit
SPC0 bit Audio Signal
Polarity
DAC
Pin
non
non
non
non
DAC1L
DAC1R
DAC2L
DAC2R
LOUT1
ROUT1
LOUT2
ROUT2
L(Hi)
R(Hi)
L(Lo)
R(Lo)
L1(Hi)+R1(Hi)
1
1
L2(Lo)+R2(Lo)
Table 23. 4-channels Mode Setting and Output Signal Status Details
(Hi: High Frequency Signal, Lo: Low Frequency Signal)
Block1
LOUT1
L(Hi) ch
L1,R1→
Digital Source
Analog Source
Digital-in
ROUT1
R(Hi) ch
4-channel
(Single-ended)
AK4753
Block2
LOUT2
ROUT2
L ch
R ch
L(Lo) ch
R(Lo) ch
L2,R2→
Analog-in
Figure 54. 4-channels Mode and Output Bridge Configuration
(Example: Hi= High Frequency Signal, Lo= Low Frequency Signal are for Two-Way Speaker system.)
MS1311-E-00
2011/07
- 38 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
