AK4373 Datasheet, PDF (59/98 Pages) Asahi Kasei Microsystems – Low Power Stereo DAC with HP/SPK-Amp

[AK4373]
■ Analog Output Control
HPBTL and PSEUDO bits select the output type, Single-ended, Differential or Pseudo cap-less (Table 34). Available pins
and bits are changed at each output type.
HPBTL bit
0
1
0
1
PSEUDO bit Headphone Output Type
Figure
0
Single-ended (default)
Figure 1
0
Differential
Figure 2
1
Pseudo cap-less
Figure 3
1
N/A
Table 34. Headphone Output Type Select (N/A: Not Available)
Table
Table 35
Table 36
Table 37
Pin / Control
Available pin / bit
Pin
HPL/R, LOUT/ROUT
SPP/SPN
Power management
PMHPL/R
PMSPK(SPPSN)
Switch Control from MIN to HP-Amp
MINH
MINS
Switch Control from DAC to HP-Amp
DACH
DACS
Gain Control
HPG
SPKG[1:0]
Table 35. Available pin / bit (Single-ended, HPBTL bit = PSEUDO bit = “0”)
Pin / Control
Available pin / bit
Pin
HPL+/-
HPR +/-
Power management
PMHPL
PMHPR
Switch Control from MIN to HP-Amp
MINH
MINH
Switch Control from DAC to HP-Amp
DACH
DACH
Gain Control
HPG
HPG
Table 36. Available pin / bit (Differential, HPBTL bit = “1”, PSEUDO bit = “0”)
Pin / Control
Available pin / bit
Pin
HPL/R
HVCM
Power management
PMHPL/R
PMHPL or PMHPR
Switch Control from MIN to HP-Amp
MINH
-
Switch Control from DAC to HP-Amp
DACH
-
Gain Control
HPG
-
Table 37. Available pin / bit (Pseudo cap-less, HPBTL bit = “0”, PSEUDO bit = “1”)
MS0991-E-00
- 59 -
2008/09