AK4492ECB Datasheet, PDF (63/101 Pages) Asahi Kasei Microsystems – Quality Oriented 32-Bit 2ch DAC

[AK4492]
■ Gain Adjustment Function (PCM Mode, DSD Mode, EXDF Mode)
The AK4492 has the gain adjustment function. The analog output amplitude can be adjusted by GC[2:0]
bits or the GAIN pin.
GC[2]
bit
0
0
0
0
1
1
1
1
Table 33. Output Level between Set Values of GC[2:0] bits
AOUTLP/LN/RP/RN Output Level
GC[1] GC[0]
bit
bit
PCM
DSD:
Normal Path
DSD:
Volume
Bypass
0
0
2.8 Vpp
2.8 Vpp
2.5 Vpp
0
1
2.8 Vpp
2.5 Vpp
2.5 Vpp
1
0
2.5 Vpp
2.5 Vpp
2.5 Vpp
1
1
2.5 Vpp
2.5 Vpp
2.5 Vpp
0
0
3.75 Vpp 3.75 Vpp
2.5 Vpp
0
1
3.75 Vpp
2.5 Vpp
2.5 Vpp
1
0
2.5 Vpp
2.5 Vpp
2.5 Vpp
1
1
2.5 Vpp
2.5 Vpp
2.5 Vpp
(default)
Table 34. Output Level between Set Values of GAIN pin (Valid Only in PCM Mode)
GAIN pin
AOUTLP/LN/RP/RN
Output Level
L
2.8 Vpp
H
3.75 Vpp
Note 52. DSDF bit must be set to “0” if GC[2:0] bits are set to “100” when using DSD Normal Path. Click
noise may occur if DSDF bit is set to “1”.
016011073-E-00
- 63 -
2016/12