AK4456 Datasheet, PDF (63/84 Pages) Asahi Kasei Microsystems – 115dB 768kHz Advanced 32-bit DAC

[AK4456]
■ Parallel Mode
Parallel mode is available by setting the I2C pin = “H”, and the PS pin = “H”. Audio interface format of the
parallel mode is controlled by TDM1-0 pins and DIF pin (Table 28). Daisy Chain mode is also available by
setting the DCHAIN pin = “H”. In parallel mode, the clock setting mode is always in auto setting mode (ACKS
mode is enabled and fixed internally) and reset is released (RSTN bit = “1”).
Zero detection function is not available in parallel mode. All functions controlled exclusively by Serial mode
are only available in their default register settings.
TDM1 pin
0
0
0
0
1
1
1
1
TDM0 pin
DIF pin
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
Table 28. Parallel Mode
Mode
Mode 6 (Table 13)
Mode 7 (Table 13)
Mode 12 (Table 13)
Mode 13 (Table 13)
Mode 18 (Table 13)
Mode 19 (Table 13)
Mode 24 (Table 13)
Mode 25 (Table 13)
■ Serial Control Interface
The AK4456’s functions are controlled through registers. The registers may be written by two types of control
modes. The internal registers are controlled in 3-wire serial control mode when the I2C pin = “L”, and in I²C
bus control mode when the I2C pin = “H” and the PS pin = “L”.
015006886-E-00
- 63 -
2015/06