AK4458 Datasheet, PDF (63/84 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 8ch Premium DAC

[AK4458]
■ 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 bits and DIF bit (Table 30). Daisy Chain mode is also available by
setting the DCHAIN pin = “H” (Table 15). 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 30. Parallel Mode
Mode
Mode6 (Table 13)
Mode7 (Table 13)
Mode12 (Table 13)
Mode13 (Table 13)
Mode18 (Table 13)
Mode19 (Table 13)
Mode24 (Table 13)
Mode25 (Table 13)
■ Serial Control Interface
The AK4458’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”.
014011794-E-01
- 63 -
2015/08