ak4648 AKM Semiconductor, Inc., ak4648 Datasheet - Page 89

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

MS0625-E-01
Addr
Addr
05H
06H
FS3-0: Sampling Frequency Select (Table 6 and Table 7) and MCKI Frequency Select (Table 12)
BCKP: BICK Polarity at DSP Mode (Table 18)
MSBS: LRCK Polarity at DSP Mode (Table 18)
PS1-0: MCKO Output Frequency Select (Table 10)
RFST1-0: ALC First recovery Speed (Table 33)
WTM2-0: ALC Recovery Waiting Period (Table 30)
ZTM1-0: ALC Limiter/Recovery Operation Zero Crossing Timeout Period (Table 29)
DVTM: Digital Volume Transition Time Setting
0: SDTO is output by the rising edge (“ ↑ ”) of BICK and SDTI is latched by the falling edge (“ ↓ ”). (Default)
1: SDTO is output by the falling edge (“ ↓ ”) of BICK and SDTI is latched by the rising edge (“ ↑ ”).
0: The rising edge (“ ↑ ”) of LRCK is half clock of BICK before the channel change. (Default)
1: The rising edge (“ ↑ ”) of LRCK is one clock of BICK before the channel change.
Default: “00” (256fs)
0: 1061/fs (default)
1: 256/fs
Register Name
Mode Control 2
Register Name
Timer Select
FS3-0 bits select sampling frequency at PLL mode and MCKI frequency at EXT mode.
Default: “00” (4 times)
Default: “000” (128/fs)
Default: “00” (128/fs)
This is the transition time between DVL/R7-0 bits = 00H and FFH.
Default
Default
R/W
R/W
DVTM
R/W
R/W
PS1
D7
D7
0
0
WTM2
R/W
R/W
PS0
D6
D6
0
0
- 89 -
ZTM1
R/W
R/W
FS3
D5
D5
0
0
MSBS
ZTM0
R/W
R/W
D4
D4
0
0
WTM1
BCKP
R/W
R/W
D3
D3
0
0
WTM0
R/W
R/W
FS2
D2
D2
0
0
RFST1
R/W
R/W
FS1
D1
D1
0
0
[AK4648]
RFST0
2007/06
R/W
R/W
FS0
D0
D0
0
0