AK4452 Datasheet, PDF (39/82 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 2ch Premium DAC

[AK4452]
[1]-2. Daisy Chain
AK4452 is available for Daisy Chain structure. Set DCHAIN bit to “1” or DCHAIN pin to “H” to enable Daisy
Chain mode. Daisy Chain supports TDM512/256 mode.
(1)TDM512 mode
Figure 29 shows example of TDM512 mode Daisy Chain structure (TDM1-0 bits= “11” ). 16ch data is input to
the second AK4452’s SDTI1 pin from a DSP. Connect the second AK4452’s TDMO1 pin to the first
AK4452’s SDTI1 pin.
Figure 30 shows data I/O example of TDM512 mode. SDTI1 (L8, R8) data is the input for the DAC of the
second AK4452, and the second AK4452 outputs the data from TDMO1 by shifting 2ch. The first AK4452
accepts SDTI1 (L7, R7) data as input data of DAC. DIF2-0 bits setting of both first AK4452 and the second
AK4452 must be the same.
LRCK
SDTI1
TDMO1
TDMO1
SDTI1
TDMO1
SDTI1
First
AK4452
Second
AK4452
DSP
Figure 29. Daisy Chain (TDM512/256 Mode)
512 BICK
L1 R1 L2 R2 L3 R3 L4 R4 L5 R5 L6 R6 L7 R7 L8 R8
Second AK4452
L1 R1 L2 R2 L3 R3 L4 R4 L5 R5 L6 R6 L7 R7
Figure 30. Daisy Chain (TDM512 Mode)
First AK4452
015002211-E-02
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2015/08