AK4637 Datasheet, PDF (71/96 Pages) Asahi Kasei Microsystems – 24bit Mono CODEC with MIC - SPK-AMP

[AK4637]
Addr Register Name
D7
D6
D5
D4
D3
D2
D1
D0
01H Power Management 2
0
0
0
0
M/S PMPLL PMSL
0
R/W
R
R
R
R
R/W
R/W
R/W
R
Default
0
0
0
0
0
0
0
0
PMSL: Speaker Amplifier or Monaural Line Output Power Management
0: Power down (default)
1: Power up
PMPLL: PLL Power Management
0: EXT Mode and Power down (default)
1: PLL Mode and Power up
M/S: Master / Slave Mode Select
0: Slave Mode (default)
1: Master Mode
Addr
02H
Register Name
Signal Select 1
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
SLPSN MGAIN3 DACS
0
PMMP MGAIN2 MGAIN1 MGAIN0
R/W
R/W
R/W
R
R/W
R/W
R/W
R/W
0
0
0
0
0
1
1
0
MGAIN3-0: Microphone Amplifier Gain Control (Table 22)
Default: “0110” (+18dB)
PMMP: MPWR pin Power Management
0: Power down: Hi-Z (default)
1: Power up
DACS: Signal Switch Control from DAC to Speaker Amplifier
0: OFF (default)
1: ON
SLPSN: Speaker Amplifier or Monaural Line Output Power-Save Mode
LOSEL bit = “0” (Speaker Output Select)
0: Power Save Mode (default)
1: Normal Operation
When SLPSN bit is “0”, Speaker Amplifier is in power-save mode. In this mode, the SPP pin
goes to Hi-Z and the SPN pin outputs AVDD/2 voltage. When PMSL bit = “1”, SLPSN bit is
enabled. After the PDN pin is set to “L”, Speaker Amplifier is in power-down mode since PMSL
bit is “0”.
LOSEL bit = “1” (Monaural Line Output Select)
0: Power Save Mode (default)
1: Normal Operation
When SLPSN bit is “0”, Monaural line output is in power-save mode. In this mode, the AOUT pin
output 1.5V or 1.3V. When PMSL bit = “1”, SLPSN bit is enabled. After the PDN pin is set to “L”,
Monaural line output is in power-down mode since PMSL bit is “0”.
015010680-E-00
- 71 -
2015/09