AD1843JS datasheet(18/64 Pages) AD

18 / 64 page

REV. 0

–18–

AD1843

15 14 13 12

3210

15 14 13 12

3210

15 14 13 12

3210

512 BITS

MSB

512 BITS

256 BITS

SLOT 15

SLOT 0

SLOT 15

SLOT 0

SLOT 31

SLOT 16

256 BITS

SAMPLE PERIOD N

SAMPLE PERIOD N+1

SAMPLE PERIOD N+2

FRAME M

FRAME M+1

SDI OR SDO

SCLK

TSI

FRS = 0

[DEFAULT 32 SLOTS PER FRAME, 2 SAMPLES PER FRAME SYNC]

EXAMPLE SHOWING GAPS BETWEEN FRAMES

SLAVE MODE

GAP

Figure 9a. FRS = 0, Slave Mode Timing

3210

15 14 13 12

512 BITS

MSB

512 BITS

256 BITS

SLOT 15

SLOT 0

SLOT 15

SLOT 0

SLOT 31

SLOT 16

256 BITS

SAMPLE PERIOD N

SAMPLE PERIOD N+1

SAMPLE PERIOD N+2

FRAME M

FRAME M+1

SDI OR SDO

SCLK

TSI

FRS = 0

[DEFAULT 32 SLOTS PER FRAME, 2 SAMPLES PER FRAME SYNC]

EXAMPLE SHOWING NO GAPS BETWEEN FRAMES

SLAVE MODE

3210

15 14 13 12

3210

15 14 13 12

3210

15 14

Figure 9b. FRS = 0, Slave Mode Timing

FRS = 1

[16 SLOTS PER FRAME, 1 SAMPLES PER FRAME SYNC]

EXAMPLE SHOWING GAPS BETWEEN FRAMES

SLAVE MODE

GAP

15 14 13 12

3210

15 14 13 12

3210

256 BITS

MSB

256 BITS

SLOT 15

SLOT 0

SLOT 15

SLOT 0

SAMPLE PERIOD N

SAMPLE PERIOD N+1

FRAME M

FRAME M+1

SDI OR SDO

SCLK

TSI

GAP

Figure 10a. FRS = 1, Slave Mode Timing

FRS = 1

[16 SLOTS PER FRAME, 1 SAMPLES PER FRAME SYNC]

EXAMPLE SHOWING NO GAPS BETWEEN FRAMES

SLAVE MODE

15 14 13 12

3210

15 14 13 12

3210

256 BITS

MSB

256 BITS

SLOT 15

SLOT 0

SLOT 15

SLOT 0

SAMPLE PERIOD N

SAMPLE PERIOD N+1

FRAME M

FRAME M+1

SDI OR SDO

SCLK

TSI

3210

15 14 13 12

MSB

Figure 10b. FRS = 1, Slave Mode Timing

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