ak4534 AKM Semiconductor, Inc., ak4534 Datasheet - Page 44

• Manufacturer Part Number: ak4534
• Description: 16bit Codec With Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

MS0133-E-03
Addr
05H
SPPS: Speaker-amp Power-Save-Mode
LOOP: Loopback ON/OFF
HPLM: Lch of HP-Amp output control
HPRM: Rch of HP-Amp output control
FS2-0: Sampling frequency modes (see Table 3, 7)
0: Power Save Mode (Default)
1: Normal Operation
When the SPPS bit = “1”, the Speaker-amp is in power-save-mode and the SPP pin becomes Hi-z and SPN pin is
set to HVDD/2 voltage. When the PMSPK bit = “1”, this bit is valid. After the PDN pin changes from “L” to “H”,
the PMSPK bit is “0”, which powers down Speaker-amp
0: OFF (Default)
1: ON
When this bit is “1”, the ADC output is passed to the DAC input internally. The external input data to DAC is
ignored.
0: Enable output from Rch of Headphone-amp (Default)
1: Lch mono output of Headphone-amp. The PMHPR bit can be powered down at this time.
0: Enable output from Lch of Headphone-amp (Default)
1: Rch mono output of Headphone-amp. The PMHPL bit can be powered down at this time.
Default: “000” (fs=44.1kHz)
Register Name
Mode Control 2
Default
R/W
OFF
OFF
Lch
ON
ON
Output Channel
OFF
OFF
Rch
ON
ON
Table 21. Output control for Headphone-amp
R/W
FS2
D7
0
PMHPL
R/W
FS1
D6
1
1
0
0
0
Register : 00H
- 44 -
R/W
FS0
D5
PMHPR
0
1
0
1
0
Register bit
HPRM
R/W
D4
0
Don’t Care
HPLM
0
1
0
Register : 05H
HPLM
R/W
D3
0
Don’t Care
HPRM
0
0
1
RD
D2
0
0
LOOP
R/W
D1
0
SPPS
R/W
2003/5
D0
0