AK4691 Datasheet, PDF (69/80 Pages) Asahi Kasei Microsystems – 4ch ADC + 2ch DAC with MIC/HP/SPK-AMP

[AK4691]
Addr
07H
Register Name
Signal Select 2
R/W
Default
D7
SPPSN
R/W
0
D6
BEEPS
R/W
0
D5
DACS
R/W
0
D4
BEEPL
R/W
0
D3
DACL
R/W
0
D2
HPM
R/W
0
D1
BEEPH
R/W
0
D0
DACH
R/W
0
DACH: Switch Control from DAC to Headphone-Amp
0: OFF (default)
1: ON
BEEPH: Switch Control from the BEEP pin to Headphone-Amp
0: OFF (default)
1: ON
HPM: Headphone-Amp Mono Output Select
0: Stereo (default)
1: Mono
When the HPM bit = “1”, (L+R)/2 signals are output to Lch and Rch of the Headphone-Amp. Both PMHPL
and PMHPR bits should be “1” when HPM bit is “1”.
DACL: Switch Control from DAC to Stereo Line Output
0: OFF (default)
1: ON
When PMLO bit is “1”, DACL bit is enabled.
BEEPL: Switch Control from the BEEP pin to Stereo Line Output
0: OFF (default)
1: ON
When PMLO bit is “1”, BEEPL bit is enabled.
DACS: Switch Control from DAC to Speaker-Amp
0: OFF (default)
1: ON
When DACS bit is “1”, DAC output signal is input to Speaker-Amp.
BEEPS: Switch Control from BEEP pin to Speaker-Amp
0: OFF (default)
1: ON
When BEEPS bit is “1”, mono signal is input to Speaker-Amp.
SPPSN: Speaker-Amp Power-Save Mode
0: Power-Save Mode (default)
1: Normal Operation
When SPPSN bit is “0”, Speaker-Amp is in power-save mode. In this mode, the SPP pin changes to Hi-Z and
the SPN pin outputs SVDD/2 voltage. When PMSPK bit = “1”, SPPSN bit is enabled. After the PDN pin is set
to “H”, Speaker-Amp is in power-down mode since PMSPK bit is “0”.
MS0672-E-00
- 69 -
2007/11