ak4538 AKM Semiconductor, Inc., ak4538 Datasheet - Page 46

• Manufacturer Part Number: ak4538
• Description: 16bit ?? Codec With Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
MS0198-E-01
Addr
03H
HPR: Rch Headphone-amp Disable
HPL: Lch Headphone-amp Disable
BPMHP: BEEPM to Headphone-amp Enable
BPSHP: BEEPL/BEEPR to Headphone-amp Enable
MICL: Switch Control from MIC IN to Stereo Mixer.
AUXL: Switch Control from AUX IN to Stereo Mixer.
0: Normal Operation
1: OFF(Default)
0: Normal Operation
1: OFF(Default)
0: OFF (Default)
1: ON
0: OFF (Default)
1: ON
0: OFF (Default)
1: ON
0: OFF (Default)
1: ON
BEEPL
BEEPR
BEEPM
AUXIN+
AUXIN-
Register Name
Signal Select 2
The HPR bit should be always “0” during operation.
The HPL bit should be always “0” during operation.
Mono BEEP signal (BEEPM) is mixed to Headphone-amp at the BPMHP bit = “1”.
Stereo BEEP signals (BEEPL/BEEPR) is mixed to Headphone-amp at the BPSHP bit = “1”.
MIC In
Default
R/W
0dB/+20dB
ATT+DAC
Volume
DAHS
IPGA
R/W
D7
Figure 44. Speaker-amp switch control
0
“DAHS”
“BPMSP”
“BPSSP”
“AUXL”
PSLO
ATT
R/W
D6
0
- 46 -
“MICL”
AUXL
R/W
D5
0
ALC2
MICL
R/W
D4
0
BPSHP
R/W
“ALCS”
D3
0
BPMHP
R/W
D2
1/2
0
1/2
SPK-AMP
HPL
R/W
D1
1
[AK4538]
2003/5
HPR
R/W
D0
1