AK4343 Datasheet, PDF (35/98 Pages) Asahi Kasei Microsystems – Stereo DAC with HP/RCV/SPK-AMP

ASAHI KASEI
[AK4343]
LRCK
0123
BICK(32fs)
SDTI(i)
0 15 14
0123
BICK(64fs)
9 10 11 12 13 14 15 0 1 2 3
8 7 6 5 4 3 2 1 0 15 14
15 16 17 18
31 0 1 2 3
SDTI(i)
15 14
210
15:MSB, 0:LSB
Lch Data
Don't Care
15 14
9 10 11 12 13 14 15 0 1
876543210
15 16 17 18
31 0 1
2 1 0 Don't Care
Rch Data
Figure 30. Mode 3 Timing
„ Digital High Pass Filter
The AK4343 has a digital high pass filter for DC offset cancellation. The cut-off frequency of the HPF is 0.9Hz
(@fs=44.1kHz) and scales with sampling rate (fs).
„ Input Selector
The AK4343 has input selector. When MDIF1 and MDIF2 bits are “0”, INL1-0 and INR1-0 bits select LIN1/LIN2/LIN3
and RIN1/RIN2/RIN3, respectively. When MDIF1 and MDIF2 bits are “1”, LIN1, RIN1, LIN2 and RIN2 pins become
IN1−, IN1+, IN2+ and IN2− pins respectively. In this case, full-differential input is available. When full-differential input
is used, the signal should not be input to the pins marked by “X” in Table 20.
MDIF1 bit
0
0
0
0
0
0
0
0
0
0
0
1
1
1
Others
MDIF2 bit
0
0
0
0
0
0
0
0
0
1
1
0
0
1
INL1 bit
0
0
0
0
0
0
1
1
1
0
1
0
0
0
INL0 bit
0
0
0
1
1
1
0
0
0
0
0
0
0
0
INR1 bit
0
0
1
0
0
1
0
0
1
0
0
0
1
0
INR0 bit
0
1
0
0
1
0
0
1
0
0
0
1
0
0
Table 19. Input Path Select
Lch
LIN1
LIN1
LIN1
LIN2
LIN2
LIN2
LIN3
LIN3
LIN3
LIN1
LIN3
IN1+/−
IN1+/−
IN1+/−
N/A
Rch
RIN1
RIN2
RIN3
RIN1
RIN2
RIN3
RIN1
RIN2
RIN3
IN2+/−
IN2+/−
RIN2
RIN3
IN2+/−
N/A
Default
MS0478-E-01
- 35 -
2006/10