AK4452VN Datasheet, PDF (44/91 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 2ch Premium DAC

[AK4452]
(2)TDM256 mode
Figure 39 shows example of TDM256 mode Daisy Chain structure (TDM1-0 bits= “10” ). 8ch 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. TDMO1 are 4ch shifted data of SDTI1.
Figure 40 shows data I/O example of TDM256 mode. SDTI1 (L4, R4) 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 (L3, R3) data as input data of DAC. DIF2-0 bits setting of both first AK4452 and the second
AK4452 must be the same.
TDMO1 _First SDTI1
AK4452
TDMO1Second SDTI1
AK4452
DSP
Figure 39. Daisy Chain (TDM128/256 Mode)
LRCK
SDTI1
TDMO1
256 BICK
L1
R1
L2
R2
L3
R3
L4
R4
Second AK4452
L1
R1
L2
R2
L3
R3
First AK4452
Figure 40. Daisy Chain (TDM256 Mode)
Rev. 0.1
- 44 -
2014/04