NJU26100 Series

- 8 -

Ver.2005-02-24

The number of BCK clock must follow the serial data format. If the BCK clock is not enough, the right sound are

not produced. Set serial data format for the adequate mode that A/Ds, D/As or Codecs reqire.

The NJU26100 Series supports serial data format which includes 32(32Fs) or 64(64Fs) BCK clocks. This serial

data format is applied to both MASTER and SLAVE mode.

4.2 Serial Audio Data Transmitting Diagram

Fig. 4-2 Left-Justified Data Format 64Fs, 24bit Data

Fig. 4-3 Right-Justified Data Format 64Fs, 24bit Data

Fig. 4-5 Left-Justified Data Format 64Fs, 20bit Data

* The 24bit data is always outputted to a SDO0 pin in the format of figure 4-5 to figure 4-10.

23 22 2120 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

23

Left Channel

Right Channel

MSB

MSB

LSB

LSB

32Clocks

32Clocks

LRI, LRO

BCKI, BCKO

SDI, SDO

23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

23 22 21 20 19 18 17 16 15 1413 12 11 10 9 8 7 6 5 4 3 2 1

Left Channel

Right Channel

MSB

MSB

LSB

LSB

32Clocks

32Clocks

LRI, LRO

BCKI, BCKO

SDI, SDO

0

2 1 0

23 2221 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

23 22 21 20 19 18 17 16 15 14 13 12 1110 9 8 7 6 5 4 3 2 1 0

Left Channel

Right Channel

MSB

MSB

LSB

LSB

32Clocks

32Clocks

LRI, LRO

BCKI, BCKO

SDI, SDO

1918 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

19

Left Channel

Right Channel

MSB

MSB

LSB

LSB

32Clocks

32Clocks

LRI, LRO

BCKI, BCKO

SDI, SDO