AK4637EN Datasheet, PDF (70/96 Pages) Asahi Kasei Microsystems – 24bit Mono CODEC with MIC/SPK-AMP

[AK4637]
■ Register Definitions
Addr Register Name
D7
D6
D5
D4
D3
D2
D1
D0
00H Power Management 1 PMPFIL PMVCM PMBP
0
LOSEL PMDAC
0
PMADC
R/W
R/W
R/W
R/W
R
R/W
R/W
R
R/W
Default
0
0
0
0
0
0
0
0
PMADC: Microphone Amplifier and ADC Power Management
0: Power-down (default)
1: Power-up
When the PMADC bit is changed from “0” to “1”, the initialization cycle (1059/fs=22ms @48kHz,
ADRST1-0 bits = “00”) starts. After initializing, digital data of the ADC is output.
PMDAC: DAC Power Management
0: Power down (default)
1: Power up
LOSEL: Monaural Line Output Select
0: Speaker Output (SPP/SPN pins) (default)
1: Monaural Line Output (AOUT pin)
PMBP: BEEP Input Select and Power Management
0: Power down (IN- pin) (default)
1: Power up (BEEP pin)
PMVCM: VCOM and Regulator (2.3V) Power Management
0: Power down (default)
1: Power up
PMPFIL: Programmable Filter Block Power Management
0: Power down (default)
1: Power up
The AK4637 can be powered down by writing “0” to the address “00H” and PMPLL, PMMP, PMSL
and PMDM bits. In this case, register values are maintained.
015010680-E-00
- 70 -
2015/09