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2 bursted sclk, Cs53l30 – Cirrus Logic CS53L30 User Manual

Page 31

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DS992F1

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CS53L30

4.7 TDM Mode

4.7.2

Bursted SCLK

After all the data is sent on the TDM bus, it is not necessary to continue to toggle SCLK for the remaining unused slots.
Not toggling SCLK after all data is sent and received saves power, by avoiding driving the output and clock capacitances
unnecessarily. When the device is operating as a timing slave, bursted SCLK is naturally supported, since data is clocked
out only when SCLK toggles. When the device is operating as a timing master, bursted SCLK is not supported.

6.0000

8.000

48

366

11.025

48

160

12.000

48

116

16.000

46

7

22.050

34

0

24.000

31

2

32.000

23

4

44.100

17

0

48.000

15

5

12.0000

8.000

48

1116

11.025

48

704

12.000

48

616

16.000

48

366

22.050

48

160

24.000

48

116

32.000

46

8

44.100

34

0

48.000

31

2

6.1440

8.000

48

384

11.025

48

173

12.000

48

128

16.000

48

0

22.050

34

6

24.000

32

0

32.000

24

0

44.100

17

3

48.000

16

0

12.2880

8.000

48

1152

11.025

48

731

12.000

48

640

16.000

48

384

22.050

48

173

24.000

48

128

32.000

48

0

44.100

34

6

48.000

32

0

6.4000

1

8.000

48

416

11.025

48

196

12.000

48

149

16.000

48

16

22.050

36

2

24.000

33

2

32.000

25

0

44.100

18

1

48.000

16

5

1. 6.4 MHz is the highest SCLK frequency allowed if MCLK_19MHZ_EN is set.

Table 4-3. Slot Count and Resulting Unused Clock Cycles for Supported SCLK and Sample Rates (Cont.)

SCLK Frequency [MHz] FSYNC Sample Rate [kHz] Number of Available Slots Resulting Number of Unused SCLK Cycles