[AK4438]
■ Parallel Mode
Parallel mode is available by setting the I2C pin = “H” and the PS pin = “H”. In parallel mode, the register
setting is ignored. Audio interface format and soft mute function are controlled by Pins. Other functions
operate in default setting of registers. The system clock is always in auto setting mode.
■ Audio Interface
Audio interface format of the parallel mode is controlled by TDM1-0 and DIF pins (Table 21).
Zero detection function and functions set by registers are not available in parallel mode.
TDM1 pin
TDM0 pin
DIF pin
Mode
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Mode6 (Table 9)
Mode7 (Table 9)
Mode12 (Table 9)
Mode13 (Table 9)
Mode18 (Table 9)
Mode19 (Table 9)
Mode24 (Table 9)
Mode25 (Table 9)
Table 21. Parallel Mode
■ Soft Mute
The soft mute operation is controlled by SMUTE pin (Figure 30).
016001925-E-00
2016/03
- 47 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
