AK4642EN Datasheet, PDF (59/83 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
[AK4642EN]
Addr
02H
Register Name
Signal Select 1
Default
D7
D6
D5
D4
D3
SPPSN BEEPS DACS DACL
0
0
0
0
0
0
D2
PMMP
0
D1
D0
0
MGAIN0
0
1
MGAIN1-0: MIC-Amp Gain Control (See Table 16)
MGAIN1 bit is D5 bit of 03H.
PMMP: MPWR pin Power Management
0: Power-down: Hi-Z (Default)
1: Power-up
DACL: Switch Control from DAC to Stereo Line Output
0: OFF (Default)
1: ON
When PMLO bit is “1”, DACL bit is enabled. When PMLO bit is “0”, the LOUT/ROUT pins go to AVSS.
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 MIN 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, SPP pin goes to Hi-Z and SPN
pin is outputs HVDD/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”.
MS0420-E-00
- 59 -
2005/09