AK4695 Datasheet, PDF (80/107 Pages) Asahi Kasei Microsystems – 24bit 4ch CODEC with MIC/HP/SPK/LINE-AMP

[AK4695]
Addr
02H
Register Name
GPO Control
R/W
Default
D7
THSDN
R/W
1
D6
THDET
R
0
D5
TEST
R/W
0
D4
DMIC
R/W
0
D3
DACAST
R/W
0
D2
SPPSN
R/W
0
D1
GPO11
R/W
0
D0
GPO10
R/W
0
GPO11, 10: GPO1 Register Setting (Table 68)
Default: “00” (Hi-Z)
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 goes to Hi-Z and the
SPN pin outputs SVDD/2 voltage. When PMSPLO bit = “1” and LBSEL bit = “0”, SPPSN bit is enabled. After
the PDN pin is set to “L”, Speaker-Amp is in power-down mode since PMSPLO bit is “0”.
DACAST: Headphone-Amp Output Offset Calibration Enable
0: Disable (default)
1: Enable
This bit must be set to “1” before power up the headphone amplifiers (PMHPL or PMHPR bit = “1”).
DMIC: Digital Microphone Connection Select
0: Analog Microphone (default)
1: Digital Microphone
TEST: Device TEST mode Enable.
0: Normal operation (default)
1: TEST mode
TEST bit must always be “0”.
THDET: Thermal Shutdown Detection
0: Normal Operation (default)
1: Thermal Shutdown
THSDN: Thermal Shutdown Function Enable
0: Thermal Shutdown On
1: Thermal Shutdown Off (default)
MS1463-E-01
- 80 -
2014/12