AK4649 Datasheet, PDF (74/96 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK-AMP

[AK4649]
Addr
11H
Register Name
Digital Filter Select 1
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
GN1
GN0
LPF
HPF
EQ0
FIL3
0
HPFAD
R/W
R/W
R/W
R/W
R/W
R/W
R
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”.
FIL3: FIL3 (Stereo Separation Emphasis Filter) Coefficient Setting Enable
0: OFF (default)
1: ON
When FIL3 bit is “1”, the settings of F3A13-0 and F3B13-0 bits are enabled.
EQ0: EQ0 (Gain Compensation Filter) Coefficient Setting Enable
0: OFF (default)
1: ON
When EQ0 bit is “1”, the settings of E0A15-0, E0B13-0 and E-C15-0 bits are enabled. When EQ0 bit is “0”,
EQ block is through (0dB).
HPF: HPF2 Coefficient Setting Enable
0: OFF (default)
1: ON
When HPF bit is “1”, the settings of F1A13-0 and F1B13-0 bits are enabled. When HPF bit is “0”, HPF block
is through (0dB).
LPF: LPF Coefficient Setting Enable
0: OFF (default)
1: ON
When LPF bit is “1”, the settings of F2A13-0 and F2B13-0 bits are enabled. When LPF bit is “0”, LPF block
is through (0dB).
GN1-0: Gain Select at GAIN block (Table 24)
Default: “00” (0dB)
MS1023-E-01
- 74 -
2010/08