AKD4370-B Datasheet, PDF (3/30 Pages) Asahi Kasei Microsystems – 24bit DAC with Headphone Amplifier

ASAHI KASEI
[AKD4370-A]
(1) Slave Mode
The AK4370’s register should be set to Slave Mode. MCKI frequency should be set to the same as the
specification of DSP or DIR. About the AK4370’s register definitions, refer to datasheet of the AK4370.
AK4370
MCKI
BICK
LRCK
SDATA
256fs, 384fs, 512fs,
768fs or 1024fs
DSP or µP
MCLK
32fs ~ 64fs
BCLK
1fs
LRCK
SDTO
Figure 2. Slave Mode
(1-1) Evaluation using DIR (Optical Link) of AK4116
PORT1 (DIR) is used. Nothing should be connected to PORT2 (DSP).
Set up the jumper pins.
JP3
LRCK2
JP4
BICK2
JP5
MCLK
JP6
BICK
JP7
LRCK
JP8
SDTO
(1-2) Evaluation connecting AKD4370 with external DSP
PORT2 (DSP) is used. Nothing should be connected to PORT1 (DIR).
MCLK, SDTI, BICK, LRCK of PORT2 should be connected to MCLK, SDTO, BICK, LRCK for DSP.
Set up the jumper pins.
JP3
LRCK2
JP4
BICK2
JP5
MCLK
JP6
BICK
JP7
LRCK
JP8
SDTO
<KM086300>
-3-
2006/12