AK4497 Datasheet, PDF (59/98 Pages) Asahi Kasei Microsystems – Quality Oriented 32-Bit 2ch DAC

[AK4497]
■ Gain Adjustment Function (PCM, DSD, EXDF)
The AK4497 has the gain adjustment function. The analog output amplitude can be adjusted by GC[2:0]
bits or the GAIN pin.
GC[2]
0
0
0
0
1
1
1
1
Table 32. Output Level between Set Values of GC[2:0] bits
AOUTLP/LN/RP/RN Output Level
GC[1] GC[0]
PCM
DSD:
Normal Path
DSD:
Volume
Bypass
0
0
2.8Vpp
2.8Vpp
2.5Vpp
0
1
2.8Vpp
2.5Vpp
2.5Vpp
1
0
2.5Vpp
2.5Vpp
2.5Vpp
1
1
2.5Vpp
2.5Vpp
2.5Vpp
0
0
3.75Vpp
3.75Vpp
2.5Vpp
0
1
3.75Vpp
2.5Vpp
2.5Vpp
1
0
2.5Vpp
2.5Vpp
2.5Vpp
1
1
2.5Vpp
2.5Vpp
2.5Vpp
(default)
Table 33. Output Level between Set Values of GAIN pin
GAIN
AOUTLP/LN/RP/RN
Output Level
0
2.8Vpp
1
3.75Vpp
Note 42. 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 “0”.
Rev. 0.1
- 59 -
2015/11