AK4561 Datasheet, PDF (18/48 Pages) Asahi Kasei Microsystems – 16bit CODEC with built-in ALC and MIC/HP-Amp

ASAHI KASEI
AKM CONFIDENTIAL
[AK4561]
Signal Select 2
Addr
Register Name
D7
D6
D5
D4
D3
D2
D1
D0
01H Signal Select 2
0
0
S12
S11
S10
S9
S8
S7
RESET
0
0
0
1
0
1
0
0
S7: Select input signal of analog volume (OPGA)
0: OFF. OPGA output voltage becomes VCOM voltage (RESET)
1: ON. OPGA is provided to the signal selected by S4-3 bits (DAC or Analog Through Mode).
S8: Select output signal of Headphone-Amp
0: OFF. Power-Save-Mode. HPL/HPR pins become Hi-z and HVCM pin is provided to VCOM
voltage. (RESET)
1: ON
S9: Select input signal of BEEP
0: OFF
1: ON (RESET)
S10: Select LINEOUT
0: OFF (RESET)
Power-Save-Mode. LINEOUT is provided to VCOM_H voltage.
1: ON
S11: Select monaural output (Mixing = (L+R)/2)
0: OFF (RESET)
Power-Save-Mode, monaural output is provided to VCOM voltage.
1: ON
S12: Select monaural input
0: OFF (RESET)
1: ON. Output signal of analog volume is provided to monaural amplifier.
Note:
S7: When S7 bit changes from “1” to “0”, the pop noise can not occur. When S7 bit changes from “0” to “1”
and S12-8 bits are changed, the pop noise occurs.
Rev. 0.9
- 18 -
2000/09