[AK4344]
Addr
Register Name
D7
0
D6
1
D5
0
D4
D3
D2
D1
D0
01H Control 2
R/W
DFS1
DFS0
DEM1
DEM0
GAIN
R/W
Default
0
1
0
1
1
0
1
1
DEM1-0: De-emphasis Response (Table 4)
Initial: “01”, OFF
DFS1-0: Sampling speed control
00: Normal speed
01: Double speed
10: Half speed
11: Auto (default)
When changing between Normal/Double Speed Mode and Half Speed Mode, some click noises occur.
GAIN: Output Voltage scale
0: Vout = 0.67 × VDD (typ) at Full-scale voltage(0dB).
1: Vout = 0.85 × VDD (typ) at Full-scale voltage(0dB).
Register Name
02H Control 3
D7
0
D6
0
D5
0
D4
D3
D2
D1
0
D0
INVL
INVR
MODE
SEL
R/W
R/W
Default
0
0
0
0
0
0
0
0
INVR: Inverting Lch Output Polarity
0: Normal Output
1: Inverted Output
INVL: Inverting Rch Output Polarity
0: Normal Output
1: Inverted Output
MODE: Mode Control
0: 4 wire mode
1: 3 wire mode
SEL: DAC input
0: SDTI1 input
1: SDTI2 input
SEL bit is disabled in 4-wire uP I/F mode (MODE bit = “0”).
MS0641-E-00
2007/06
- 20 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
