AKD4368-B Datasheet, PDF (4/32 Pages) Asahi Kasei Microsystems – 24bit DAC with integrated Headphone Amplifier

(3) EXT Slave Mode
AK4368
MCKO
MCKI
BICK
LRCK
SDATA
256fs, 512fs or 1024fs
DSP or μP
MCLK
≥ 32fs
BCLK
1fs
LRCK
SDTO
[AKD4368-B]
Figure 4. EXT Slave Mode
(3-1) In case of using DIR (Optical Link) <default>
PORT1 (DIR) is used. DIR generates MCLK, BICK, LRCK and SDATA from the received data through optical
connector (TORX141). Nothing should be connected to PORT2(DSP).
JP3(MCLK),JP4(BICK),JP5(LRCK) and JP6(SDTO) should be shorted.
JP8(LRCK2) and JP9(BICK2) should also be short.
JP3
MCLK
JP4
BICK
JP5
LRCK
JP6
SDTO
JP8
LRCK2
JP9
BICK2
The AK4116 operates at fs of 32kHz or more. If the fs is slower than 32kHz, any other evaluation mode
without using DIR should be used.
(3-2) In case of connecting AK4368 with external DSP
PORT2 (DSP) is used. MCLK, BICK, LRCK and SDATA are supplied from PORT2. Nothing should be
connected to PORT1 (DIR).
JP3(MCLK),JP4(BICK),JP5(LRCK) and JP6(SDTO) should be open.
JP8(LRCK2) and JP9(BICK2) should be short.
JP3
MCLK
JP4
BICK
JP5
LRCK
JP6
SDTO
JP8
LRCK2
JP9
BICK2
Other jumper pins set up
JP1 (GND) : Analog ground and Digital ground
OPEN : Separated. <default>
SHORT : Common. (The connector “DGND” can be open.)
<KM081301>
-4-
2006/02