AK4564 Datasheet, PDF (33/48 Pages) Asahi Kasei Microsystems – 16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP

ASAHI KASEI
[AK4564]
Signal Select 2
Addr
Register Name
01H Signal Select 2
Default
D7
SPPS
0
D6
D5
D4
D3
D2
D1
D0
ALCS BEEP2H BEEP2S AOUT2 AOUT1 MOUT HPDAC
0
0
0
0
0
0
0
HPDAC: Enable input signal from Headphone-Amp to DAC output
0: OFF (Default)
1: ON
MOUT: Enable mono output [Mixing = (L+R)/2].
0: OFF (Default)
1: ON
When MOUT bit = “0”, MOUT pin outputs VCOM voltage.
AOUT1: Enable LOUT1/ROUT1 output
0: OFF (Default)
1: ON
When AOUT1 bit = “0”, the outputs become HVCM voltage and the amps go to
Power-Save-Mode.
AOUT2: Enable LOUT2/ROUT2 output
0: OFF (Default)
1: ON
When AOUT2 bit = “0”, the outputs become HVCM voltage and the amps go to
Power-Save-Mode.
BEEP2S: Enable BEEP2 to Speaker-Amp
0: OFF (Default)
1: ON
BEEP2H: Enable BEEP2 to Headphone-Amp
0: OFF (Default)
1: ON
ALCS: Enable ALC2 to Speaker-Amp
0: OFF (Default)
1: ON
SPPS: Speaker-Amp Power-Save-Mode
0: Power-Save-Mode (Default)
1: Normal operation
When SPPS bit = “0”, SP0 pin becomes Hi-Z and SP1 pin is generated to SVDD/2 voltage.
MS0140-E-01
- 33 -
2002/07