ak4537 AKM Semiconductor, Inc., ak4537 Datasheet - Page 52

• Manufacturer Part Number: ak4537
• Description: 16-bit 6 Stereo Codec With Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
MS0202-E-04
Addr
07H
MGAIN: 1
MSEL:
MICAD: Switch Control from Mic In to ADC
MPWRI: Power Supply Control for Internal Microphone
MPWRE: Power Supply for External Microphone
IPGAC: IPGA Control Mode Select
0: 0dB
1: +20dB (Default)
0: Internal MIC (Default)
1: External MIC
0: OFF (Default)
1: ON
0: OFF (Default)
1: ON
0: OFF (Default)
1: ON
0: Dependent (Default)
1: Independent
Register Name
MIC/HP Control
ALC1 output signal is input to ADC when MICAD bit = “1”.
The setting of MPWRI is enabled when PMMICL bit = “1”.
The setting of MPWRE is enabled when PMMICL bit = “1”.
When IPGAC= “1”, IPGAL6-0 bits control both Lch and Rch at same time. IPGAR6-0 bits are not changed
when the IPGAL6-0 bits are written.
Default
Microphone select
R/W
st
Mic-amp Gain control
RD
D7
0
0
RD
D6
0
0
IPGAC
- 52 -
R/W
D5
0
MPWRE
R/W
D4
0
MPWRI
R/W
D3
0
MICAD
R/W
D2
0
MSEL
R/W
D1
0
[AK4537]
MGAIN
2005/04
R/W
D0
1