AK4373 Datasheet, PDF (62/98 Pages) Asahi Kasei Microsystems – Low Power Stereo DAC with HP/SPK-Amp

[AK4373]
2) Differential Output (HPBTL bit = “1” PSEUDO bit = “0”)
For differential output, no external AC coupling capacitor is required.
Power management (power up/down control) of L/Rch is controlled by setting PMHPL/PMHPR bits respectively. The
common voltage control of Headphone-Amp is controlled by setting HTMTN bit. The common voltage is shown in Table
40. HPBTL bit should be changed when both speaker and headphone amps are powered-down.
AK4373
HPL+ pin
HPL− pin
HPR+ pin
HPR− pin
+
−
Headphone Lch
+
−
Headphone Rch
Figure 54. External Circuit Example of Headphone (Differential output)
MS0991-E-00
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2008/09