SM5951A

SEIKO NPC CORPORATION —10

FUNCTIONAL DESCRIPTION

Data Input/Output Format

DSD input format

The DSD input format can be set to one of 2 types by the state of SELDSDI.

(1) Normal mode (SELDSDI

= LOW)

DSD input data is read in close to the rising edge of the bit clock BCKI. Note that even if the input is phase

modulated, the data is still read in close to the rising edge of BCKI if the data is defined.

(2) Manchester-type input (SELDSDI

= HIGH)

DSD input data is read in during the LOW-level pulse of the bit clock BCKI.

Note. DSDI***: DSDI1_[3:0], DSDI2_[3:0], DSDI3_[3:0], DSDI4_[3:0], DSDI5_[3:0], DSDI6_[3:0], DSDI7_[3:0], DSDI8_[3:0] pins

Note. When an external mute pattern is input on EXMUTE pin, data is read in normal mode format only, regardless of the state of SELDSDI.

DSDI***

D1

D2

D1

D1

D2

D2

BCKI

(1/64fs or 1/128fs)

DSDI***

D1

D2

BCKI

(1/64fs or 1/128fs)

D1

D2