AK4955 Datasheet, PDF (92/117 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP/ LDO & DSP

[AK4955]
Addr Register Name
D7
D6
19H BEEP Volume Control BPOUT
0
R/W
R/W
R
Default
0
0
D5
D4
D3
D2
D1
D0
0
0
BPLVL3 BPLVL2 BPLVL1 BPLVL0
R
R
R/W
R/W
R/W
R/W
0
0
0
0
0
0
BPLVL3-0: BEEP Output Level Setting (Table 56)
Default: “0H” (0dB)
BPOUT: BEEP Output ON/OFF Control
0: OFF (default)
1: ON
Beep is output for the number of times, that is selected by BPTM6-0 bits, by setting BPOUT bit = “1” while
BPCNT bit = “0”. BPOUT bit is automatically set to “0” when BEEP output is finished.
Addr
1AH
Register Name
Video Control
R/W
Default
D7
D6
D5
D4
D3
D2
0
0
0
0
VG1
VG0
R
R
R
R
R/W
R/W
0
0
0
0
0
0
PMV: Video Block Power Management
0: Power down (default)
1: Power up
PMCP: Charge Pump Block Power Management
0: Power down (default)
1: Power up
VG1-0: Video Amplifier Gain Select
VG1-0 bits
GAIN
00
+6dB
(default)
01
+9dB
10
+12dB
11
+16.5dB
Table 63. Video Signal Gain Setting
D1
PMCP
R/W
0
D0
PMV
R/W
0
Addr
1BH
Register Name
HPF Filter Control
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
HPFC1 HPFC0 HPFAD
R
R
R
R
R
R/W
R/W
R/W
0
0
0
0
0
0
0
1
HPFAD: HPF1 Control of ADC
0: OFF
1: ON (default)
When HPFAD bit is “1”, the settings of HPFC1-0 bits are enabled. When HPFAD bit is “0”, HPFAD block is
through (0dB).
When PMADL bit = “1” or PMADR bit = “1”, set HPFAD bit to “1”.
HPFC1-0: Cut-off Frequency Setting of HPF1 (ADC) (Table 25)
Default: “00” (3.7Hz @ fs = 48kHz)
MS1343-E-00
- 92 -
2011/12