ak4648 AKM Semiconductor, Inc., ak4648 Datasheet - Page 92

• Manufacturer Part Number: ak4648
• Description: Stereo Codec With Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

MS0625-E-01
Addr
Addr
0FH
10H
DACH: Switch Control from DAC to Headphone-Amp
MINH: Switch Control from MIN pin to Headphone-Amp
HPM: Headphone-Amp Mono Output Select
IVOLC: Input Digital Volume Control Mode Select
HPG3-0: Headphone-Amp Volume Control
PMADR: MIC-Amp Lch and ADC Rch Power Management
INL1-0: ADC Lch Input Source Select (Table 20)
INR1-0: ADC Rch Input Source Select (Table 20)
MDIF1: Single-ended / Full-differential Input Select 1
MDIF2: Single-ended / Full-differential Input Select 2
0: OFF (default)
1: ON
0: OFF (default)
1: ON
0: Stereo (default)
1: Mono
0: Independent
1: Dependent (default)
Default: 0dB (Table 58)
0: Power-down (default)
1: Power-up
Default: 00 (LIN1 pin)
Default: 00 (RIN1 pin)
0: Single-ended input (LIN1/RIN1 pins: Default)
1: Full-differential input (IN1+/IN1 − pins)
MDIF1 bit selects the input type of pins D7 and F5.
0: Single-ended input (LIN2/RIN2 pins: Default)
1: Full-differential input (IN2+/IN2 − pins)
MDIF2 bit selects the input type of pins C5 and B6.
Register Name
Register Name
Mode Control 4
Power Management 3
When the HPM bit = “1”, DAC output signal is output to Lch and Rch of the Headphone-Amp as (L+R)/2.
When IVOLC bit = “1”, IVL7-0 bits control both Lch and Rch volume level, while register values of IVL7-0
bits are not written to IVR7-0 bits. When IVOLC bit = “0”, IVL7-0 bits control Lch level and IVR7-0 bits
control Rch level, respectively.
Default
R/W
Default
R/W
INR1
R/W
D7
0
HPG3
R/W
D7
1
INL1
R/W
D6
HPG2
0
R/W
D6
0
- 92 -
HPG1
R/W
RD
D5
D5
0
0
1
MDIF2
HPG0
R/W
R/W
D4
D4
1
0
IVOLC
MDIF1
R/W
R/W
D3
D3
1
0
HPM
INR0
R/W
R/W
D2
D2
0
0
MINH
INL0
R/W
R/W
D1
D1
0
0
[AK4648]
PMADR
2007/06
DACH
R/W
R/W
D0
D0
0
0