ak4642e AKM Semiconductor, Inc., ak4642e Datasheet - Page 59

• Manufacturer Part Number: ak4642e
• Description: Stereo Codec With Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

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