AK5397 Datasheet, PDF (31/44 Pages) Asahi Kasei Microsystems – 32-Bit Stereo Premium ADC

[AK5397]
(2) TDM128 mode
The AK5397 supports cascading of two devices in a daisy chain configuration at TDM128 mode. In this
mode, the SDTO1 pin (SDTO2 pin) is connected to the TDMIN1 pin (TDMIN2 pin) of next device. When
two devices are connected by daisy-chaining as Figure 31, the SDTO1 pin (SDTO2 pin) of device #2 can
send 4ch TDM data.
256fs or 512fs
48kHz or 96kHz or 192kHz
128fs
AK5397 #1
MCLK TDMIN1
LRCK TDMIN2
BICK SDTO1
SDTO2
AK5397 #2
MCLK TDMIN1
LRCK TDMIN2
BICK SDTO1
SDTO2
GND
4ch TDM
4ch TDM
Figure 31. Cascade TDM Connection Diagram
LRCK
128 BICK
BICK(128fs)
#1 SDTO1/2(o) 31 30 29 28 4 3 2 1 0 31 30 29 28 4 3 2 1 0
31 30
L#1
32 BICK
R#1
32 BICK
#2 SDTO1/2(o) _{31 30 29 28 4 3 2 1 0 31 30 29 28 4 3 2 1 0 31 30 29 28 4 3 2 1 0 31 30 29 28 4 3 2 1 0 31 30}
L#2
32 BICK
R#2
32 BICK
L#1
32 BICK
R#1
32 BICK
Figure 32. Cascade TDM Timing (Mode 8; TDM128 mode, MSB justified, Slave mode)
014011535-E-00
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2014/11