AK5388 Datasheet, PDF (21/27 Pages) Asahi Kasei Microsystems – 120dB 24-bit 192kHz 4-Channel ADC

ASAHI KASEI
[AK5388]
■ Cascade TDM Mode
The AK5388 supports cascading of up to two devices in a daisy chain configuration in TDM256 mode. In this mode,
SDTO2 pin of device #1 is connected to TDMIN pin of device #2. The SDTO1 pin of device #2 can output 8-chnnels of
TDM data multiplexed with 4-chnnel of TDM data from device #1 and 4-channel of TDM data from device #2. Figure 15
shows a connection example of a daisy chain.
AK5388 #1
MCLK
LRCK
BICK
TDMIN
SDTO1
SDTO2
GND
256fs or 512fs
48kHz
256fs
AK5388 #2
MCLK
LRCK
BICK
TDMIN
SDTO1
SDTO2
8ch TDM
Figure 15. Cascade TDM Connection Diagram
LRCK
256 BICK
BICK(256fs)
#1 SDTO1(o)
23 22 0 23 22 0 23 22 0 23 22 0
L1
32 BICK
R1
32 BICK
L2
32 BICK
R2
32 BICK
23 22
#1 SDTO2(o)
23 22 0 23 22 0 23 22 0 23 22 0
L1
32 BICK
R1
32 BICK
L2
32 BICK
R2
32 BICK
#2 TDMIN(i)
23 22 0 23 22 0 23 22 0 23 22 0
L1
32 BICK
R1
32 BICK
L2
32 BICK
R2
32 BICK
#2 SDTO1(o)
23 22 0 23 22 0 23 22 0 23 22 0 23 22 0 23 22 0 23 22 0 23 22 0 23 22
L1
32 BICK
R1
32 BICK
L2
32 BICK
R2
32 BICK
L1-#1
32 BICK
R1-#1
32 BICK
L2-#1
32 BICK
R2-#1
32 BICK
Figure 16. Cascade TDM Timing
Rev. 0.3
- 21 -
2007/10