AK4345 Datasheet, PDF (21/26 Pages) Asahi Kasei Microsystems – 100dB 96kHz 24-Bit Stereo 3.3V ΔΣ DAC with DIT

[AK4345]
Addr Register Name
D7
01H Control 2
0
R/W
Default
0
D6
D5
D4
D3
D2
D1
D0
1
0
DFS1 DFS0 DEM1 DEM0 GAIN
R/W
1
0
1
1
0
1
1
DEM1-0: De-emphasis Response (Table 5)
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 noise occurs.
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
D7
D6
D5
D4
D3
D2
D1
02H Control 3
0
0
0
INVL INVR MODE SEL1
R/W
R/W
Default
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
SEL1-0: DAC and DIT input
00: SDTI1 input
01: SDTI2 input
10: SDTI2 input (DIT Bypass)
11: Reserved
SEL1-0 bits are disabled in 4-wire μP I/F mode (MODE bit = “0”).
SDTI1 data is input to both DAC and DIT.
D0
SEL0
0
MS0635-E-00
- 21 -
2007/06